Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle...

184
Needle Roller Bearings

Transcript of Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle...

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Needle Roller Bearings

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NSK NEEDLE BEARING

TECHNICALINFORMATION

Cage & Needle RollerAssemblies

Drawn Cup NeedleRoller Bearings

Solid Needle RollerBearings

Inner Rings for NeedleRoller Bearings

Thrust Bearings

Cam Followers

Roller Followers

Needle Rollers

Spherical PlainBearings

Needle Roller Bearingsfor Universal Joints

Drawn Cup RollerClutches

Oil Seals for NeedleRoller Bearings

Example Figures andAppendices

A6~

B4~

B36~

B88~

B128~

B162~

B176~

B190~

B198~

B208~

B220~

B228~

B238~

C1~

FWJFWFWJ

F,FHNFHB,BH

RNA48RNA49RNA59RNA69HJ

FIRIR

FNTANTA

FB

FCRFCJCR

FCRSFCJSCRS

FYCRFYCJYCR

FSFSF

FSBBSBB

ZY NSA

A F P T C M

FC

VC KC

RC FCB RCB

FYCRSFYCJSYCRS

FG FHFTRATRA

FTRBTRB

FTRCTRC

FTRDTRD

FTRETRE

TRF

IR

RLM RNAF RNAFW RNA---TT LM NAF NAFW NA---TT

MF,MFHM,MH

FJ,FJL,FJHJ,JH,DB

MFJ,MFJLMFJHMJ,MJH

FWF---WFBNWJC

FBN---W

YYHDD

MFY

NA48NA49NA59NA69HJ+IR

FJT,FJTTFJLT,FJLTTFJHTT

MFJTMFJLT

FJPJP

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Introduction

Newly Revised & Updated NSK Needle Roller Bearing Catalog

Welcome to the latest edition of the NSK Needle Roller Bearing catalog(Catalog No. E1419c). Our new catalog has been revised and updated tobetter meet the needs of our customers.

NSK needle roller bearings enjoy a favorable reputation and are wellaccepted in the industrial machinery marketplace. NSK will continue to meetthe future needs of industry by further developing automation-relatedproducts that are more compact, lightweight, consume less energy, andoffer extended maintenance-free performance.

This newly revised NSK needle roller bearing catalog has been enhancedwith a wealth of information that spans many years of amassing empiricaldata from many sources around the world.

We are convinced that this catalog will prove to be more helpful to youin selecting the optimum bearing for your application. Choose the optimalNSK needle roller bearing for your application from among the types andfeatures offered in this catalog. Please feel free to contact us with anyfeedback, comments or suggestions you may have.

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Needle Roller Bearings

CAT.No.E1419c

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APPENDICES

Appendix 1 Conversion Table from SI(International Units) System...................... C48

Appendix 2 N-kgf Conversion Table ........................... C50Appendix 3 kg-lb Conversion Table ............................ C51Appendix 4 °C-°F Conversion Table............................ C52Appendix 5 Viscosity Conversion Table ...................... C53Appendix 6 Inch-mm Conversion Table ...................... C54Appendix 7 Hardness Conversion Table (Reference)... C56Appendix 8 Physical and Mechanical Properties of

Materials .................................................. C57Appendix 9 Tolerances for Shaft Diameters ................ C58Appendix 10 Tolerances for Housing Bore Diameters ... C60Appendix 11 Values of Standard Tolerance Grades IT.. C62Appendix 12 Speed Factor fn ....................................... C64Appendix 13 Fatigue Life Factor fh and Fatigue Life

L・Lh....................................................... C65Appendix 14 Boundary Dimensions of Radial Bearings... C66Appendix 15 Boundary Dimensions of Thrust Bearings... C67

A 4 A 5

BEARING TABLES Page

Cage & Needle Roller Assemblies .......... B004Drawn Cup Needle Roller Bearings ........ B036Solid Needle Roller Bearings .................. B088Inner Rings for Needle Roller Bearings ... B128Thrust Bearings...................................... B162Cam Followers ....................................... B176Roller Followers...................................... B190Needle Rollers........................................ B198Spherical Plain Bearings......................... B208Needle Roller Bearings for Universal Joints .. B220Drawn Cup Roller Clutches .................... B228Oil Seals for Needle Bearings ................. B238

EXAMPLE FIGURES Page

・ Motor Vehicles .................................. C02・ Construction and Cargo Handling

Equipment......................................... C09・ Agricultural Machinery ....................... C19・ Machine Tools................................... C20・ Business Machines ........................... C26・ Electric and Pneumatic Equipment .... C30・ Two-Stroke Engines.......................... C39・ Hydraulic Machines ........................... C41・ Others............................................... C44

TECHNICAL INFORMATION Page

1. Bearing Types and Features............. A061.1 Cage & Needle Roller Assemblies .... A061.2 Drawn Cup Needle Roller Bearings.. A061.3 Solid Needle Roller Bearings............ A081.4 Thrust Bearings ............................... A081.5 Cam Followers and Roller Followers A091.6 Needle Rollers ................................. A091.7 Spherical Plain Bearings .................. A101.8 Needle Roller Bearings for Universal

Joints .............................................. A101.9 Drawn Cup Roller Clutches.............. A11

2. Bearing Life and Basic Load Rating .. A122.1 Bearing Life ..................................... A122.2 Basic Dynamic Load Rating............. A122.3 Life Equation.................................... A132.4 Static Load Rating ........................... A152.5 Maximum Permissible Load of Drawn

Cup Needle Roller Bearings, Pmax .... A16

3. Bearing Loads .................................... A173.1 Equivalent Load............................... A173.2 Calculation of Bearing Loads ........... A173.3 Average Load .................................. A18

4. Bearing Selection .............................. A204.1 Bearing Types ................................. A204.2 Machinery in which Bearings are

Used and Projected Life .................. A224.3 Limiting Speed................................. A224.4 Internal Clearance of

Rolling Bearings............................... A234.5 Bearing Accuracy ............................ A25

5. Shaft and Housing Design................ A305.1 Fitting .............................................. A305.2 Accuracy and Roughness................ A345.3 Materials and Heat Treatment of

Raceway Surface............................. A355.4 Abutment and Fillet Dimensions....... A35

6. Lubrication and Lubricating Methods .. A376.1 Friction and Lubrication ................... A376.2 Lubricants ....................................... A376.3 Lubricating Methods........................ A41

7. Bearing Seals ..................................... A437.1 Oil Seals .......................................... A437.2 Oil Grooves...................................... A437.3 Flingers (Slingers)............................. A447.4 Labyrinth Seals ................................ A44

8. Bearing Handling............................... A458.1 Precautions for Proper Handling of

Bearings .......................................... A458.2 Mounting ......................................... A458.3 Insertion and Removal Force ........... A468.4 Operating Inspection ....................... A478.5 Dismounting .................................... A478.6 Cleaning .......................................... A48

NSK NEEDLE BEARING NSK NEEDLE BEARING

CONTENTS

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A 6 A 7

1. Bearing Types and Features

7. Mounting is made easier because pressfitting can be performed with an arbor pressor the like.

8. Lubricating the bearing is easy and alubrication hole can also be provided uponrequest.

9. If a closed type is used at the shaft end,savings can be made on the housing endcover.

10. The full complement roller bearing carriesthe load on many rollers and thusmaximizes load capacity.

11. Among full complement roller bearings,bearings whose rollers are held in place bygrease before assembly have the maximumload capacity because the rollers have thelongest possible length.

12. The cage of the needle bearing accuratelyguides the rollers at the pitch diameter ofthe rollers. The surface of the cage ishardened to reduce frictional torque andincrease rigidity and wear resistance.

13. The unique structure of the cage allowsextensive space for storing lubricant, thusenabling smooth lubricant circulation andincreasing grease life.

Needle roller bearings are a type of rollerbearings and are classified as either radial orthrust depending on the direction of the loadthey support. Needle roller bearings includebearings whose rollers slightly exceed the sizerange of needle rollers as stipulated by ISO.

Needle roller bearings include drawn cupand solid radial bearings, as well asapplication-specific cam followers, rollerfollowers. Thrust bearings include thrust needlebearings. Although not classified as a rollingbearing, there is also a spherical slidingbearing that supports radial and axial loads.

This catalog presents the various types ofneedle bearings and their features. For easyreference, the numbers in each section from1.1 through 1.0 correspond to the numbers inFigs. 1.1 through 1.9.

1.1 Cage & Needle Roller Assemblies

1. The cage has a unique structure thatfacilitates handling by holding the rollerssecurely in place.

2. The outside surface of the cage serves as aguide face and helps create favorablelubricating conditions.

3. The cage guides the rollers accurately toensure that stable roller movement ismaintained.

4. The single-piece cage has high strengthand rigidity and facilitates the freecirculation of lubricant.

5. High load capacity is possible due to thepresence of many rollers of relatively longlength.

6. To prevent stress concentrations on bothends of the rollers (edge loads), appropriatecrowning is applied.

1.2 Drawn Cup Needle Roller Bearings

1. NSK drawn cup needle roller bearings areavailable in two types: caged and fullcomplement. Drawn cup outer rings aremade of carefully selected alloy steel sheet.They are surface-hardened after precisepressing, giving them a unique structure.

2. The outer ring is precisely pressed and is intight line contact with the rollers. Optimumheat treatment gives the raceway surfaceuniform strength and the ability to carryheavy loads.

3. The low height of the bearings saves spaceso machines can be made more compactand lightweight.

4. The bent part of the drawn cup outer ringsecurely holds the rollers and/or cage andacts as a labyrinth seal that prevents boththe entry of dust and dirt and lubricantleakage. At the same time, it enhances thestrength of the outer ring end faces.

5. When the shaft has adequate hardness andis finished to proper dimensional accuracy,the inner ring can be omitted and space inthe radial direction can be saved.

6. As securing in the axial direction isachieved by press fitting, a locating snapring, collar, housing shoulder or the like isnot required. This simplifies the housingstructure and facilitates low-cost design.

NSK NEEDLE BEARING NSK NEEDLE BEARING

Fig. 1.1 Cage & Needle Roller Assemblies Fig. 1.2 Drawn Cup Needle Roller Bearings

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1.5 Cam Followers and RollerFollowers

1. The thick-walled outer ring made of high-carbon chromium bearing steel, which isfinished by grinding after hardening, hashigh shock resistance and is highly resistantto deformation.

2. The cam follower has lubrication holes inthree places. Lubrication can be providedeasily from any of these three locations.

3. Crowning is applied to the rollers in order toavoid edge loading.

4. The labyrinth seal structure reduces friction.In addition, a special thrust washer isintegrated in order to enhance heat seizureresistance.

5. Increasing shock resistance, the shaft of thecam follower has a hardened racewaysurface.

6. The roller follower can carry heavy loadsbecause both ends are supported.

1.6 Needle Rollers

There are a variety of end faces availablefrom which an appropriate shape can beselected for specific applications.

1. Rounded rollers are the most widely used.2. Flat rollers have a longer effective load-

carrying length.3. Crank pin rollers are suitable for where the

corner of the shaft or housing step isconsiderably rounded.

4. Appropriate crowning can be applied forvarious usage conditions.

NSK NEEDLE BEARINGBEARING TYPES AND FEATURES

A 8

1.3 Solid Needle Roller Bearings

1. The bearing ring can sustain high shockloads because it is precisely ground afterbeing heat treated.

2. Providing high load capacity, many rollersare held in the outer ring by strongintegrated ribs.

3. The unique single-piece cage is alsoexcellent for high speeds as the cageaccurately guides the rollers at the rollerpitch diameter at both ends of the rollers.

4. Considerable space is allotted for lubricantand lubricant life is long.

5. The cage is surface treated, increasingwear resistance and rigidity.

6. Appropriate crowning is applied to therollers to avoid edge load.

7. Outer rings provided with a lubricationgroove and lubrication hole facilitate thereplenishment of lubricant.

8. As the size variation per unit of rollerdiameter is small, the distribution of theroller load is favorable and bearing life islong.

1.4 Thrust Bearings

1.4.1 Thrust Needle Bearings

1. Making compact design feasible, the heightof the cross-section is similar to that of aconventional thrust washer.

2. The cage, which is made of two steelsheets precisely pressed, holds andaccurately guides the rollers. The cage issurface hardened to increase wearresistance and rigidity.

3. There are thrust washers of variousthicknesses available to meet therequirements of different applications.

Fig. 1.3 Solid Needle Roller Bearings

Fig. 1.5 Cam Followers and

Roller Followers Fig. 1.6 Needle RollersFig. 1.4 Thrust Bearings

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1.9 Drawn Cup Roller Clutches

There are three types with a clutch only: FC,FCL and RC; and three types with a clutch andbearing combined: FCB, RCB and FCBN.

1. The unique structure of the drawn cup outerring makes the clutch lightweight andcompact.

2. The height of the cross-section is the sameas standard drawn cup needle bearingsand the torque capacity is high.

3. Performance is accurate and friction torqueis low during overrunning.

4. Installation can be done in the same way asfor drawn cup needle bearings, that is, bysimply press fitting the unit into the housing.

NSK NEEDLE BEARINGBEARING TYPES AND FEATURES

A 10

1.7 Spherical Plain Bearings

1. Since the structure is composed simply ofan inner ring with spherical outside and anouter ring with a spherical bore, this bearingis ideal for applications where the inner andouter rings are misaligned.

2. Carefully selected high-carbon chromiumbearing steel is used, and high loadcapacity is achieved thanks to idealhardening.

3. Bearings with single-cut outer rings are notseparable even without snap rings.

4. Bearings with double-cut outer rings areassembled by a wire snap ring into a singlebody.

5. The lubrication grooves and lubricationholes provided in the inner and outer ringsfacilitate re-lubrication.

6. After phosphate coating, a coating ofmolybdenum disulfide is applied to thewhole surface.

1.8 Needle Roller Bearings forUniversal Joints

Needle roller bearings for universal jointsinclude two types: drawn cup and solid.

1. While the tightening method is mainly usedfor securing drawn cup needle bearings ina yoke hole, another method employs arose washer and bearing assembly iscarried out using special equipment.Universal joints made by assembling drawncup needle bearings have the followingcharacteristics:(a) It is possible to impose a light preload

between the bearing inner bottom andcross shaft end.

(b) It is possible to have the cross shaft,s

rotating center aligned with the shaftcenter.

(c) Universal joints made in this way areeconomical and contribute to makingproducts more compact and lightweight.

2. As solid needle bearings can sustainheavier loads than drawn cup needlebearings, universal joints with solid needlebearings are suitable for medium andheavy-duty motor vehicles.

Fig. 1.8 Needle Roller Bearings

for Universal Joints Fig. 1.9 Drawn Cup Roller ClutchesFig. 1.7 Spherical Plain Bearings

1.1 Drawn cup bearing(secured by tightening method)

1.2 Drawn cup bearing(secured by rose washer)

2 Solid bearing

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A 12 A 13

2. Bearing Life and Basic Load Rating

2.3 Life Equation

The following relation exists between thebasic dynamic load rating, the bearing load andthe rating fatigue life of roller bearings:

........................(2.3)

where, L : Rating fatigue life (106-revolutionunit)

P : Bearing load (equivalent load)(N), {kgf}

Cr, Ca : Basic dynamic load rating ofradial bearing and thrust bearing(N), {kgf}

When the bearing is rotating at a certainspeed n (min-1), it is convenient to express thefatigue life of the bearing in hours. Whenfatigue life is expressed in hours, 500 hours isreferred to as standard,

33.3min-1×60min×500h=106rev

In other words, the basic dynamic load ratingC, which gives a life of 106 revolutions, givesthe life of 500 hours at 33.3min-1

Lh : Fatigue life hours of bearing (h)....As shown in Fig. 2.2 and Appendix 13

fh : Fatigue life factor....As shown in Fig. 2.2 and Appendix 13

fn : Speed factor....As shown in Fig. 2.2 and Appendix 12

With the above, the relation betweenequations 2.4, 2.5 and 2.6 is obtained.

........................................(2.4)

...................(2.5)

......................................(2.6)

2.1 Bearing Life

Like other rolling bearings, needle rollerbearings cannot be used forever and canfracture for various reasons. If bearings areincorrectly mounted, lubrication is improper orbearings are exposed to dust and moisture dueto poor sealing, they will eventually fail toperform satisfactorily. Even if bearings areproperly mounted and operated correctly withsufficient lubrication, when rolling bearings areoperated under load, the inner and outer ringraceways and rolling elements are subjected torepeated cyclic stress. Because of metalfatigue of the rolling contact surfaces of theraceways and rolling elements, scaly particlesmay separate from the bearing material. Thisphenomenon is called “flaking”. Bearing fatiguelife is defined by the total number of revolutionsafter which the bearing surface will start flakingdue to stress. If the speed is constant, thefatigue life is often expressed by the totalnumber of operating hours. As shown in Fig.

2.1, even for seemingly identical bearings,which are of the same type, size and material,and receive the same heat treatment and otherprocessing, the rolling fatigue life varies greatlyeven under identical operating conditions. Thisis because the flaking of materials due tofatigue is subject to many other variables.Consequently, “rating fatigue life” is used inpreference to actual rolling fatigue life.Suppose a number of bearings of the sametype are operated individually under the same

conditions. After a certain period of time, 10%of them fail as a result of flaking caused byrolling fatigue. The total number of revolutionsat this point is defined as the basic rating lifeor, if the speed is constant, the basic rating lifeis often expressed by the total number ofoperating hours completed.

2.2 Basic Dynamic Load Rating

The basic load rating is defined as theconstant load applied on bearings withstationary outer rings that the inner rings orshafts can endure for a rating life of one millionrevolutions (106 rev). The basic load rating ofradial bearings is defined as a central radialload of constant direction and magnitude, whilethe basic load rating of thrust bearings isdefined as an axial load of constant magnitudein the same direction as the central axis. Thebasic load ratings of roller bearings are definedin ISO 281 and can be calculated by Equation2.1 and 2.2. The basic load ratings Cr and Ca

listed in the dimension tables of NSK needlebearings are calculated in accordance withISO, but amended with development ofbearing materials and manufacturing quality.

...........(2.1)

For thrust roller bearings

..........................(2.2)

where, Cr, Ca : Basic dynamic load rating (N){kgf}

i : Number of roller rows per bearingα: Nominal contact angleZ : Number of rolling elements per

rowDw : Roller diameterLwe : Effective length of rollerbm : Rating factor depending on

normal material andmanufacture quality

fc, fca : Coefficients determined bycontact surface shape betweenroller and bearing ring,processing accuracy andbearing material

NSK NEEDLE BEARING NSK NEEDLE BEARING

Fig. 2.2 Speed Factor and Life Factor

n fn fh Lh

Fig. 2.1

Failure Probability and Bearing Life

Life

Ave

rage

LifeR

atin

g Li

fe

Failu

re P

roba

bilit

y

Rot

atio

n sp

eed

Spe

ed fa

ctor

Life

fact

or

Life

hou

rs

Cr= bm fc (iLwe cosα ) Z Dw

79

34

2927

Ca= bm fca Lwe Z Dw

79

34

2927

L= ( ― ) L= ( ― ) Cr

PCa

P

103

103 or

Lh= 500 fh

103

fh= fn・― ― fh= fn・― ― Cr

PCa

Por

fn= ( ―― ― ) 33.3n

310

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improvements in bearing steel.NSK now uses vacuum degassed bearing

steel, and the results of tests by NSK show thatlife is greatly improved when compared withearlier materials. The basic load ratings Cr andCa listed in the bearing tables were calculatedconsidering the extended life achieved byimprovements in materials and manufacturingtechniques. Consequently, when estimating lifeusing Equation 2.9, it is sufficient to assumea1 = 1.

The life adjustment factor for operatingconditions, a3, is used to adjust for variousfactors, particularly lubrication. If there is nomisalignment between the inner and outer ringsand the thickness of the lubricating film in thecontact zones of the bearing is sufficient, it ispossible for a3 to be greater than one; however,a3 is less than one in the following cases:

・When the viscosity of the lubricant in thecontact zones between the raceways androlling elements is low.

・When the circumferential speed of therolling elements is very slow.

・When the bearing temperature is high.・When the lubricant is contaminated by

water or foreign matter.・When misalignment of the inner and outer

rings is excessive.

It is difficult to determine the proper value fora3 for specific operating conditions becausethere are still many unknowns. Since the specialbearing property factor a2 is also influenced bythe operating conditions, there is a proposal tocombine a2 and a3 into one quantity (a2 ×a3),and not consider them independently. In thiscase, under normal lubricating and operatingconditions, the product (a2 ×a3) should beassumed equal to one. However, if the viscosityof the lubricant is too low, the value drops to aslow as 0.2.

If there is no misalignment and a lubricantwith high viscosity is used so sufficient fluid-filmthickness is secured, the product of (a2 ×a3)can be as high as two.

When selecting a bearing based on the basicload rating, it is best to choose a reliabilityfactor (a1) appropriate for the projected use andan empirically determined C/P or fh valuederived from past results for lubrication,temperature, mounting conditions, etc. in similarmachines.

2.4 Static Load Rating

2.4.1 Static Load Ratings

When subjected to an excessive load or astrong shock load, rolling bearings may incur alocal permanent deformation of the rollingelements and permanent deformation of therolling elements raceway surface if the elasticlimit is exceeded. The nonelastic deformationincreases in area and depth as the loadincreases, and when the load exceeds a certainlimit, the smooth running of the bearing isimpeded.

The basic static load rating is defined as thatstatic load which produces the followingcalculated contact stress at the center of thecontact area between the rolling elementsubjected to the maximum stress and theraceway surface.

For roller bearings 4 000 MPa{408 kgf/mm2}

In this most heavily stressed contact area, thesum of the permanent deformation of the rollingelement and that of the raceway is nearly0.0001 times the rolling element,s diameter. Thebasic static load rating C0 is written C0r for radialbearings and C0a for thrust bearings in thebearing tables.

In addition, following the modification of thecriteria for basic static load rating by ISO, thenew C0 values for NSK

,s roller bearings became

about 1.5 to 1.9 times the past values.Consequently, the values of the permissiblestatic load factor, fs, have also changed, soplease pay attention to this.

NSK NEEDLE BEARINGBEARING LIFE AND BASIC LOAD RATING

A 14

2.3.1 Temperature Adjustment for Basic

Dynamic Load Rating

If rolling bearings are used at hightemperature, the hardness of the bearing steeldecreases. Consequently, the basic load rating,which depends on the physical properties of thematerial, also decreases. Therefore, the basicload rating should be adjusted for highertemperatures using the following equation.

Ct = ft・C ..............................................(2.7)

where, Ct : Basic load rating aftertemperature correction(N), {kgf}

ft : Temperature factor(See Table 2.1)

C : Basic load rating beforetemperature adjustment(N), {kgf}

2.3.2 Hardness Factor, fH

The raceway surface should be HRC58 to 64and hardened to the proper depth. Methods forhardening the raceway surface include fullhardening, carburized hardening or inductionhardening. A decrease in hardness results in a

rapid reduction in the fatigue life of the bearing.When hardness is lower than HRC58, it isnecessary to correct the basic dynamic loadrating by multiplying it by the hardness factor,fH, shown in Fig. 2.3.

2.3.3 Correction of Basic Rating Life

As described previously, the equation forcalculating the basic rating life of roller bearingsis:

.........................................(2.8)

The L10 Life is defined as the basic rating lifewith a statistical reliability of 90%. Dependingon the machines in which the bearings areused, sometimes a reliability higher than 90%may be required.

However, recent improvements in bearingmaterial have greatly extended the fatigue life.In addition, the development of the Elasto-Hydrodynamic Theory of Lubrication proves thatthe thickness of the lubricating film in thecontact zone between rings and rollingelements greatly influences bearing life. Toreflect such improvements in the calculation offatigue life, the basic rating life is adjustedusing the following adjustment factors:

Lna = a1a2a3 L10......................................(2.9)

where,Lna : Adjusted rating life in whichreliability, material improvements,lubricating condition, etc. areconsidered

L10 : Basic rating life with a reliabilityof 90%

a1 : Life adjustment factor forreliability

a2 : Life adjustment factor for specialbearing properties

a3 : Life adjustment factor foroperating conditions

The life adjustment factor for reliability, a1, islisted in Table 2.2 for reliabilities higher than90%.

The life adjustment factor for special bearingproperties, a2, is greater than one because of

L10= ( ― ) CP

10― 3

Fig. 2.3 Hardness Factor

Hardness, HRC

Har

dnes

s fa

ctor

, fH

BearingTemperature

TemperatureFactor

125 150 175 200 250

1.00 1.00 0.95 0.90 0.75

ft

Table 2.1 Temperature Factor, ft

Reliability (%)

a1

95 96 97 98 99

0.62

90

1.00 0.53 0.44 0.33 0.21

Table 2.2 Reliability Factor, a1

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3. Bearing Loads

3.1 Equivalent Load

While in some cases the loads applied tobearings are purely radial or axial loads, in mostcases the loads are a combination of both. Inaddition, loads usually fluctuate in bothmagnitude and direction. For this reason, theloads actually applied to bearings cannot beused for bearing life calculations. A hypotheticalload that has a constant magnitude and passesthrough the center of the bearing (and will givethe same bearing life that the bearing wouldattain under actual conditions of load androtation) should therefore be estimated. Such ahypothetical load is called the equivalent load.

In the case of radial needle bearings, as theonly load that can be applied is radial, thedynamic equivalent load can be obtained fromthe following equation:

P = Fr ...................................................(3.1)

where, P : Dynamic equivalent load (N),{kgf}

Fr : Radial load imposed on bearing(N), {kgf}

3.2 Calculation of Bearing Loads

The loads applied to bearings generallyinclude the weight of the body to be supportedby the bearings, the weight of the revolvingelements themselves, the transmission power ofgears and belting and the load produced by theoperation of the machine in which the bearingsare used. These loads can be theoreticallycalculated, but some of them are difficult toestimate. Therefore, it becomes necessary tocorrect the estimates using empirically deriveddata.

3.2.1 Load Factor

When a radial or axial load has beenmathematically calculated, the actual load onthe bearing may be greater than the calculatedload because of vibration and shock presentduring operation of the machine. Actual loadsmay be calculated using the followingequations:

Fr = fw・Frc }.........................................(3.2)Fa = fw・Fac

where, Fr, Fa : Loads applied on bearing (N),{kgf}

Frc, Fac : Theoretically calculated load(N), {kgf}

fw : Load factor

The values given in Table 3.1 are usuallyused for the load factor, fw

3.2.2 Bearing Loads in Belt or Chain

Transmission Applications

The force acting on the pulley or sprocketwheel when power is transmitted by a belt orchain is calculated using the followingequations:

M = 9 550 000H/n .....(N・mm) }.........(3.3)= 974 000H/n .....{kgf・mm}Pk = M/r ...............................................(3.4)

where, M : Torque acting on pulley orsprocket wheel (N・mm),{kgf・mm}

Pk : Effective force transmitted by beltor chain (N), {kgf}

H : Power transmitted (kW)n : Speed (min-1)r : Effective radius of pulley or

sprocket wheel (mm)

When calculating the load on a pulley shaft,the belt tension must be included. Thus, to

NSK NEEDLE BEARINGBEARING LIFE AND BASIC LOAD RATING

A 16

2.4.2 Permissible Static Load Factor

The permissible static equivalent load onbearings varies depending on the basic staticload rating and also the application andoperating conditions.

The permissible static load factor, fs, is asafety factor that is applied to the basic staticload rating, and it is defined by the ratio inEquation 2.10. The generally recommendedvalues of fs are listed in Table 2.3. Conformingto the modification of the static load rating, thevalues of fs were revised, especially forbearings for which the values of C0 wereincreased, please keep this in mind whenselecting bearings.

...............................................(2.10)

where, C0 : Basic static load rating (N), {kgf}P0 : Static equivalent load (N), {kgf}

2.5 Maximum Permissible Load ofDrawn Cup Needle RollerBearings Pmax

The drawn cup (outer ring) of a needlebearing is made of a thin-wall special steelsheet that is hardened by carburizing afterpress-forming. Dynamic loads beyond themaximum permissible load, Pmax, in the BearingTables should not be imposed. For static loads,the permissible load is up to 1.3 times Pmax.

fs =― C0

P0

Operating Conditions

Low-noise applications

Bearings subjected tovibration and shock loads

Standard operating conditions

3

2

1.5

Lower Limit of fs

Table 2.3 Values of Permissible Static Load Factor, fs

Operating Conditions Typical Applications

Electric motors,Machine tools,Air conditioners

1 to 1.2

1.2 to 1.5

1.5 to 3

Air blowers,Compressors,Elevators, Cranes,Papermakingmachines

Constructionequipment, Crushers,Vibrating screens,Rolling mills

Smooth operationfree from shock

Normal operation

Operationaccompanied byshock and vibration

fw

Table 3.1 Values of Load Factor, fw

Page 12: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

A 19

(2) When the load fluctuates almost linearly(Fig. 3.2), an approximate value for theaverage load may be calculated as follows:

..............................(3.11)

where, Fmin: Minimum value of fluctuatingload (N), {kgf}

Fmax: Maximum value of fluctuatingload (N), {kgf}

(3) When the load fluctuation is similar to asine wave, an approximate value for theaverage load may be calculated from thefollowing equation:

In the case of Fig. 3.3

Fm≒ 0.65Fmax ...................................(3.12)

In the case of Fig. 3.4

Fm≒ 0.75Fmax ...................................(3.13)

NSK NEEDLE BEARINGBEARING LOADS

A 18

calculate the actual load, Kb, in the case of abelt transmission, the effective transmittingpower is multiplied by the belt factor, fb, whichrepresents the belt tension. Values of fb fordifferent types of belts are shown in Table 3.2.

Kb= fb・Pk ..........................................(3.5)

In the case of a chain transmission, thevalues corresponding to fb should be 1.25 to1.5.

3.2.3 Bearing Loads in Gear Transmission

Applications

The loads imposed on gears in geartransmissions vary according to the type ofgear. In the simplest case of spur gears, theload is calculated as follows:

M = 9 550 000H/n.......(N・mm) }.........(3.6)= 974 000H/n.......{kgf・mm}Pk = M/r ................................................(3.7)Sk = Pktan θ .........................................(3.8)Kc = ..........................(3.9)

where, M : Torque applied to gear(N・mm), {kgf・mm}

Pk : Tangential force on gear (N),{kgf}

Sk : Radial force on gear (N), {kgf}Kc : Combined force imposed on gear

(N), {kgf}H : Power transmitted (kW)n : Speed (min-1)r : Pitch circle radius of drive gear

(mm)θ: Pressure angle

In addition to the theoretical load calculatedabove, vibration and shock (which depend onhow accurately the gear is finished) should beincluded by multiplying the theoreticallycalculated load by the gear factor, fg.

The values of fg should generally be those inTable 3.3. When vibration from other sourcesaccompanies gear operation, the actual load isobtained by multiplying the load factor by thisgear factor.

3.3 Average Load

3.3.1 Average of Fluctuating Load

When the load applied to bearings fluctuates,an average load that will yield the same bearinglife as the fluctuating load should be calculated.(1) When the relation between load and

rotating speed is divided into the followingsteps (Fig. 3.1):

Load F1 : Speed n1; Operating time t1

Load F2 : Speed n2; Operating time t2

Load Fn : Speed nn; Operating time tn

Then, the average load, Fm, may becalculated using the following equation:

Fm =

.......................(3.10)

where, Fm : Average fluctuating load (N),{kgf}

.........

F1 n1t1+ F2 n2t2+ + Fn nntn

n1t1+ n2t2+……+ nntn

103

103

103

103 …

1Fm≒― ( Fmin

+ 2Fmax)

3

Type of Belt

Toothed belts

V belts

Flat belts with tension pulleys

Flat belts

1.3 to 2

2 to 2.5

2.5 to 3

4 to 5

fb

Table 3.2 Belt Factor, fb

Gear Finish Accuracy

Precision ground gears

Ordinary machined gears

1 to 1.1

1.1 to 1.3

fg

Table 3.3 Values of Gear Factor, fg

Fig. 3.1

Incremental Load Variation

Fig. 3.2

Simple Load Fluctuation

Fig. 3.3 Fig. 3.4

Sinusoidal Load Variation

Pk2+ Sk

2= Pk secθ

Page 13: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

A 20 A 21

4. Bearing Selection

Friction torque of a full complement rollerbearing:

pitch circle radius bearing0.0025 × ×of rollers load

Friction torque of cage assembly:pitch circle radius bearing0.0015 × ×of rollers load

While full complement roller bearings can beoperated at considerably high speeds (see thelimiting speeds shown in the Bearing Tables),bearings with cages are recommended for high-speed applications. Bearings with cages arealso preferable for applications where shaftdeflection or mounting error is relatively highbecause their rollers are accurately guided andcrowned.

4.1.2 Comparison between Drawn Cup and

Solid Bearings

Employing a thick, hardened bearing ring,solid bearings can sustain high shock loadsand continuous loads. Drawn cup bearings arenot to be used beyond the maximumpermissible load shown in the Bearing Tables.

Although solid bearings of high rigidity canbe used with double-cut, split housings, drawncup bearings are affected by bore accuracyand housing rigidity due to their thin outer ring.Therefore, double-cut, split housings should beavoided.

When mounting solid bearings, positioning isrequired to be in line with the shoulder of thehousing hole or a snap ring. However, withdrawn cup bearings, as through-holes aresufficient for housings, bore processing is easierand more economical.

4.1 Bearing Types

It is important to select the needle rollerbearing that is most suited to the particularapplication. One must fully understand thestructure and characteristics of a selectedbearing to determine whether it is appropriatefor a given application.

When selecting needle bearings, thefollowing factors should be considered:(1) Amount, direction and condition of bearing

load(2) Rotating speed and which ring is rotating(3) Required bearing life(4) Ambient temperature of bearing(5) Accuracy of bearings(6) Degree of friction(7) Noise(8) Vertical shaft or horizontal shaft(9) Lubricating method and sealing device

(10) Mounting and dismounting(11) Space for mounting(12) Finishing accuracy, rigidity, and materials

of shaft and housing(13) Cost requirements

Weighing these factors along with thecharacteristics of specific bearings, the bestbearing for a particular application can beselected.

The characteristics of various NSK needleroller bearings are compared in Table 4.1.

4.1.1 Comparison of Bearings with Cages

and Full Complement Bearings

Comparing bearings of the same size, fullcomplement bearings, both at rest and whenrotating, have a higher load rating andmaximum permissible load than bearings withcages, and are therefore preferred for mostapplications.

As the rollers are accurately guided inbearings with a cage and no friction occursbetween the rollers, the friction torque is lowerthan in the full complement roller bearings.

Under ideal lubrication conditions and normalload, approximate friction torque can beobtained with the following equation.

NSK NEEDLE BEARING NSK NEEDLE BEARING

Bearing Type

―― FCJ,FYCJ

FNTA,NTA

RNA, HJ,RLM, etc.

F, B,BH, etc.

FJ,FJL,J, JH, etc.

FWJ, WJ,FBN, etc.

High

None

High

Very high

Medium

Very high

Very low

Very low

High

Medium

None

Low

Very high

Medium

Very high

Very low

Very low

High

High

None

Low

Medium

Low

Medium

Low

Very low

High

High

None

High

Very high

Medium

Very high

Very low

Medium

Moderate

None

High

High

High

Low

Low

Low

Very low

High

Very high

None

Very high

Medium

Low

Medium

Low

Very low

Very high

Medium

None

Low

High

Medium

High

Very low

Medium

Moderate

High

None

Low

Low

Low

Low

Low

Medium

Moderate

FCR, CR,FYCR, YCR

Cam Follower/Roller Follower

With CageWith Cage Needle

NeedleRoller

ThrustSolidDrawn CupCage &NeedleRollers Full

ComplementWith Cage FullComplement

Radial Load Capacity

Axial Load Capacity

Maximum Permissible Load

Limiting Speed

Permissible ShaftDeflection andMounting Error

Grease Life

Friction Torque

Cross-Section Height

Cost performance

Characteristics

Table 4.1 Comparison of Characteristics of Needle Roller Bearings

Operating PeriodsA3 2 to 4 3 to 5 4 to 7 B6

Fatigue Life Factor, fh

Infrequently used oronly for short periods

・Small motors forhome applianceslike vacuumcleaners andwashing machines・Hand power tools

・Rolling mill rollnecks

・Agriculturalequipment

・Motors for homeheaters and airconditioners・Construction

equipment

・Small motors・Deck cranes・General cargo

cranes・Pinion stands・Passenger cars

・Escalators

・Conveyors・Elevator cable

sheaves

・Factory motors・Machine tools・Transmissions・Vibrating screens・Crushers

・Centrifugalseparators・Air conditioning

equipment・Blowers・Woodworking

machines・Large motors・Axle boxes on

railway rolling stock

・Crane sheaves・Compressors・Specialized

transmissions

・Mine hoists・Press flywheels・Railway traction

motors・Locomotive axle

boxes

・Papermakingmachines

・Waterworks pumps・Electric power

stations・Mine draining

pumps

Used only occasionallybut reliability isimportant

Used intermittently forrelatively long periods

Used intermittently formore than eight hoursdaily

Used continuously andhigh reliability isimportant

Table 4.2 Fatigue Life Factors, fh, for Various Bearing Applications

Page 14: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

A 23

load, lubricating method, and coolingconditions, including those of the bearing,ssurroundings. When bearing load, P, exceeds8% of the basic load rating, C, the limitingspeed shown in the Bearing Tables must becorrected by multiplying it by the correctionfactor in Fig. 4.1.

In the Bearing Tables, the limiting speeds foroil lubrication are shown for each bearing. Forgrease lubrication, consider 60 to 70% of the oillubrication values as a guide. Please consultNSK for further details.

4.4 Internal Clearance of RollingBearings

The internal clearance of rolling bearingsduring operation is one of the key featuresaffecting bearing characteristics such as lifespan, heat generation, vibration and noise.Internal clearance is the space between the

raceway ring and the rolling elements. Thedistance the free ring moves when a specificmeasured radial load is applied is defined asthe radial measured clearance. In rollerbearings, since elastic deformation caused bythe measured load can be ignored, themeasured clearance and geometric clearance(radial internal clearance) are considered to bethe same.

Values for the radial internal clearance ofmetric solid needle bearings withinterchangeable components are listed in Table

4.3. These are classified from smallestclearance to largest into C2, CN, C3, C4 andC5. When the clearance range of bearings withinterchangeable rings is too wide, matchedbearings with the clearances listed in Table 4.4

(page A23) are available.The radial internal clearances of inch needle

bearings with inner rings, HJ + IR, are shown inTable 4.5 (page A25). HJ + IR needle bearings

NSK NEEDLE BEARINGBEARING SELECTION

A 22

4.2 Machinery in which Bearings areUsed and Projected Life

It is not advisable to select bearings withunnecessarily high load ratings, for suchbearings may be too large and uneconomical.In addition, the bearing life alone should not bethe deciding factor in the selection of bearings.The strength, rigidity, and design of the shaft onwhich the bearings are to be mounted shouldalso be considered. Bearings are used in awide range of applications and the design lifevaries with specific applications and operatingconditions. Table 4.2 gives empirical fatigue lifefactors derived from operating experience forvarious applications.

4.3 Limiting Speed

Rolling bearings are subject to speedlimitations. When bearings are operating, thehigher the speed, the higher the bearing

temperature due to friction. The limiting speedis the empirically obtained value for themaximum speed at which bearings can becontinuously operated without failing fromseizure or generation of excessive heat.Naturally, limiting speeds (in min-1) varydepending on such factors as bearing type anddimensions, cage type and material, bearing

Fig. 4.1

Correction of Limiting Speed by Bearing Load

Cor

rect

ion

fact

or

C/P

Bearing Bore Diameterd (mm)

Clearance

C 2 CN C 3 C 4 C 5

minover incl max min max min max min max min max

-1024

304050

6580

100

120140160

180200225

250280315

355400

102430

405065

80100120

140160180

200225250

280315355

400450

000

55

10

101515

152025

354545

555565

100110

252525

303540

455055

607075

90105110

125130145

190210

202020

253040

405050

607075

90105110

125130145

190210

454545

506070

758590

105120125

145165175

195205225

280310

353535

455060

657585

100115120

140160170

190200225

280310

606060

708090

100110125

145165170

195220235

260275305

370410

505050

607080

90105125

145165170

195220235

260275305

370410

757575

85100110

125140165

190215220

250280300

330350385

460510

-6570

8095

110

130155180

200225250

275305330

370410455

510565

-9095

105125140

165190220

245275300

330365395

440485535

600665

Table 4.3 Interchangeable Radial Internal Clearances of Metric Solid Needle Roller Bearingsunit :pm

Bearing Bore Diameterd (mm)

Clearance

CC 2 CC CC 3 CC 4 CC 5

minover incl max min max min max min max min max

Table 4.4 Matched Radial Internal Clearance of Metric Solid Needle Roller Bearingsunit :pm

61014

182430

405065

80100120

140160180

200225250

280315355400

101418

243040

506580

100120140

160180200

225250280

315355400450

101010

101012

151520

252530

353540

455055

60657585

202020

202525

303540

455060

657580

90100110

120135150170

202020

202525

303540

455060

657580

90100110

120135150170

303030

303540

455060

708090

100110120

135150165

180200225255

353535

354045

505570

8095

105

115125140

155170185

205225255285

454545

455055

657590

105125135

150165180

200215240

265295330370

454545

455055

657590

105120135

150165180

200215240

265295330370

555555

556070

8090

110

125145160

180200220

240265295

325360405455

-6565

657080

95110130

155180200

225250275

305330370

410455510565

-7575

758095

110130150

180205230

260285315

350380420

470520585650

Page 15: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

A 25

4.4.4 Radial Internal Clearance of Drawn

Cup Needle Roller Bearings

Because the correct form and dimensionalaccuracy of drawn cup needle bearings isachieved only after press fitting into a specifichousing bore, the method for selecting theinternal clearance of solid needle bearingscannot be applied to drawn cup bearings.Please refer to page B39 for the internalclearances of drawn cup needle bearings.

4.5 Bearing Accuracy

NSK needle roller bearings are manufacturedin conformity with the accuracy classes setdown by ISO. Class 0 is adequate for generaluse, while bearings with higher accuracy, suchas Classes 6, 5, and 4, are recommended foruse when extremely low runout is required,when the rotating speed is high, and/or whenless friction and shaft fluctuation are required.As various factors, such as bearing type,internal clearance, lubrication, and mounting,should be considered when selecting higher-accuracy bearings, please consult NSK.

As defined by ISO, the boundary dimensionsfor radial bearings, tolerances for boundarydimensions and running accuracy, and limits forchamfer dimensions are shown in Table 4.7.Regarding high-accuracy bearings of Class 6and higher, please consult NSK.

NSK NEEDLE BEARINGBEARING SELECTION

A 24

are wide and clearance values are determinedbroadly based on previous experience to be onthe safe side. As the values in Table 4.3 and4.4 are also used for cylindrical roller bearings,which are narrower, CN clearance is notcommonly used for needle bearings, which arewider and produced in various structures.

Clearance at a certain temperature and underparticular rotation conditions, even underconditions where the load causes no elasticdeformation, is defined as the effectiveclearance. Theoretically, bearing life is longestwhen the effective clearance is slightly negative.It is, however, difficult to operate all bearingsunder these ideal conditions and if the propernegative clearance is exceeded, bearing lifesignificantly decreases. The effective clearance,therefore, should generally be set as positive.Fitting conditions, temperature conditions andmounting error should be taken intoconsideration in clearance selection.

4.4.1 Fitting Condition

Radial clearance is reduced by expansion orcontraction of the bearing rings when fittingeither an inner or an outer ring onto a shaft orinto a housing with interference. This decreasedvalue, obtained by the calculation shown inTable 5.1 (page A31), is approximately 75 to90% of interference.

As the fitting surface is finished with a certaintolerance, it is advisable that calculation of thedecreased value in internal clearance due tofitting be dealt with statistically.

4.4.2 Bearings and Circumference

Temperature Conditions

Frictional heat generated by bearing rotationis released through shafts and housings. Sinceheat is released more readily through thehousing, the temperature of the inner ring androlling elements is higher than that of the outerring. This difference in temperature is largerwhen the shaft is heated or the housing iscooled. Radial internal clearance is reduced bythe difference in heat expansion resulting fromthe temperature difference between the innerand outer rings. The value of this clearancereduction in rolling bearings is calculated by the

following equation:

...............................(4.1)

where, δt: Decreased value of radial internalclearance by temperaturedifference between inner andouter ring (mm)

α: Coefficient of linear expansion ofbearing steel (12.5 × 10-6 )

dt: Temperature difference betweeninner and outer rings (°C)

D: Nominal outside diameter (mm)d: Nominal bore diameter (mm)

4.4.3 Shaft Deflection and Mounting Error

of Bearings

When shaft deflection and mounting error arelarge, it is necessary to select a larger bearingclearance. For metric solid needle bearings, forexample, when the fitting of the inner and outerrings is tight (i.e., tighter than the values of kand K ) care should be taken to select aclearance of C 3 or CC 3 and larger from Tables

4.3 and 4.4, in order to prevent insufficientradial internal clearance.

For solid needle bearings, which are oftenused without an inner ring, various radialinternal clearances are obtained by selectingshaft tolerances, as shown in Table 4.6.

1δ t t≒― α d( 3D+ d)4

Note: For internal clearances other than the valuesshown in this table, please consult NSK.

min

ClearanceNominal Dimension of Roller’sInscribed Circle Diameter, Fw

mm (inch)

maxover incl

15.87525.40028.575

34.92541.27547.625

69.85076.20095.250

101.600114.300139.700

152.400165.100196.850

209.550234.950

5/81

1 1/8

1 3/81 5/81 7/8

2 3/43

3 3/4

44 1/25 1/2

66 1/27 3/4

8 1/49 1/4

(((

(((

(((

(((

(((

((

)))

)))

)))

)))

)))

))

15.87525.400

28.57534.92541.275

47.62569.85076.200

95.250101.600114.300

139.700152.400165.100

196.850209.550

5/81

1 1/81 3/81 5/8

1 7/82 3/4

3

3 3/44

4 1/2

5 1/26

6 1/2

7 3/48 1/4

((

(((

(((

(((

(((

((

))

)))

)))

)))

)))

))

―― 334146

485050

565663

686871

767684

8487

66778286889199

104117122127132137142154159162

Table 4.5 Interchangeable Radial Internal

Clearance of Inch Solid Needle

Roller Bearingsunit: pm

Nominal Dimension ofRoller’s Inscribed

Circle Diameter, Fw

(mm) C 2 CN C 3 C 4

over incl

6

180

315

180

315

490

k5

j6

h6

g5

f6

e6

f6

e6

d6

e6

d6

c6

Table 4.6 Fitting Tolerances and Radial

Internal Clearance of Shafts

Assembled with Solid Needle

Roller Bearings without Inner

Rings

Note: For tight fitting of the outer ring (class K andhigher) select a smaller shaft dimension inconsideration of the contraction of theinscribed circle diameter after assembly.

Page 16: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

BEARING SELECTION

A 26 A 27

NSK NEEDLE BEARING

Nominal BoreDiameter

d

(mm)

ddmp(

2) dds(

2) Vdp(

2)

Normal Class 6 Class 5 Class 4Class 4Diameter

SeriesDiameter

SeriesDiameter

Series

Normal Class 6 Class 5 Class 4

0,1,2,3,4 9 0,1 2,3,4 9 0,1 9 0,1,2,3,4 9 0,1,2,3,42,3,4

Diameter Series Diameter Series Normal Class6

Class5

Class4 Normal Class

6Class

5Class

4Class

5Class

4

Single Bearing

NormalClass 6

Class 5Class 4

Inner Ring (orOuter Ring) (3) Inner Ring

ddmp(

2) dBs(or d

Cs )(3) VBs(or V

Cs) Kia S

d

over incl

0.62.5

10

183050

80120150

180250315400

2.51018

305080

120150180

250315400500

101010

131519

253131

38445056

888

101219

253131

38445056

666

89

11

151919

23263034

999

101315

192323

28313844

777

81015

192323

28313844

555

689

111414

17192326

555

689

101313

151823-

444

567

81010

121418-

444

567

81010

12---

333

455

688

9---

666

89

11

151919

23263034

555

689

111414

17192326

333

345

577

89

12-

121520

202025

253030

30354050

121520

202025

253030

30354045

555

556

788

101315-

101010

131520

253030

40506065

567

81010

131818

20253035

444

455

688

101315-

777

888

91010

111315-

333

445

566

7---

2.52.52.5

344

566

8---

2.52.52.5

2.534

455

6---

222

2.533.5

455

6---

high low high low high low high low high low high low high lowmax max max max maxmax max max max max max max max max max max max max

(1)

Normal Class6

Class5

Class4

Tolerances for

Table 4.7.1 Tolerances for Inner Rings

Radial Bearings

and Widths of Outer Rings

Nominal OutsideDiameter

D

(mm)

dDmp d

DsV

Dp

Normal Class 6 Class 5 Class 4Class 4

Open Type Open TypeNormal Class 6 Class 5 Class 4

0,1,2,3,4 7,8,9 0,1 2,3,4 7,8,9 0,1 7,8,9 0,1,2,3,4 7,8,9 0,1,2,3,42,3,4

Open Type Open TypeNormal Class

6Class

5Class

4 Normal Class6

Class5

Class4

Class5

Class4

Class5

Class4

VDmp K

ea SD

VCs

(2)

over incl

2.56

18

305080

120150180

250315400500

61830

5080

120

150180250

315400500630

101012

141619

233138

44505663

889

111319

233138

44505663

667

81011

141923

26303438

99

10

111416

192325

31354148

778

91116

192325

31354148

556

78

10

111415

19212529

556

79

10

111315

18202328

445

578

81011

14151721

445

678

91011

1315--

334

556

788

1011--

667

81011

141923

26303438

556

78

10

111415

19212529

333

455

678

9101214

151515

202535

404550

607080

100

889

101318

202325

30354050

556

78

10

111315

18202325

888

889

101011

13131518

444

445

557

810--

555

568

88

10

11131518

2.52.52.5

2.534

557

78--

334

556

78

10

1113--

222.5

33.54

556

78--

high low high low high low high low high low max max max max max max max max max max max max max max max max

(1)

Table 4.7.2 Tolerances for Outer Rings

DiameterSeries

DiameterSeries

DiameterSeriesDiameter Series Diameter Series

Notes (1) 2.5 mm is included in the group.(2) The tolerances for outer ring width variation of bearings of Classes Normal and 6 are shown in Table 4.7.1.

Remarks The outside diameter “no-go side” tolerances (low) specified in this table do not necessarily apply within adistance of 1.2 times the chamfer dimension r (max) from the ring face.

Notes (1) 0.6 mm is included in the group.(2) Applicable to bearings with cylindrical bores.(3) Tolerance for width deviation and tolerance limits for the width variation of the outer ring should be the same

for a given bearing. Tolerances for the width variation of the outer ring of Class 5, 4, and 2 are shown inTable 4.7.2.

Remarks The cylindrical bore diameter “no-go side” tolerance limits (high) specified in this table do not necessarilyapply within a distance of 1.2 times the chamfer dimension r (max) from the ring face.

unit: pm

unit: pm

0 - 80 - 80 - 8

0 -100 -120 -15

0 -200 -250 -25

0 -300 -350 -400 -45

0 - 70 - 70 - 7

0 - 80 -100 -12

0 -150 -180 -18

0 -220 -250 -300 -35

0 - 50 - 50 - 5

0 - 60 - 80 - 9

0 -100 -130 -13

0 -150 -180 -23-  -

0 - 40 - 40 - 4

0 - 50 - 60 - 7

0 - 80 -100 -10

0 -12-  --  --  -

0 - 40 - 40 - 4

0 - 50 - 60 - 7

0 - 80 -100 -10

0 -12-  --  --  -

0 - 80 - 80 - 9

0 -110 -130 -15

0 -180 -250 -30

0 -350 -400 -450 -50

0 - 70 - 70 - 8

0 - 90 -110 -13

0 -150 -180 -20

0 -250 -280 -330 -38

0 - 50 - 50 - 6

0 - 70 - 90 -10

0 -110 -130 -15

0 -180 -200 -230 -28

0 - 40 - 40 - 5

0 - 60 - 70 - 8

0 - 90 -100 -11

0 -130 -15-  --  -

0 - 40 - 40 - 5

0 - 60 - 70 - 8

0 - 90 -100 -11

0 -130 -15-  --  -

0 - 400 -1200 -120

0 -1200 -1200 -150

0 -2000 -2500 -250

0 -3000 -3500 -4000 -450

0 - 400 - 400 - 80

0 -1200 -1200 -150

0 -2000 -2500 -250

0 -3000 -3500 -4000 -

Page 17: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

A 29

BEARING SELECTION

A 28

d Nominal bearing bore diameterdds Deviation of a single bore diameterddmp Single plane mean bore diameter

deviationVdp Bore diameter variation in a single radial

planeVdmp Mean bore diameter variation

dBs Deviation of a single inner ring widthVBs Inner ring width variation

Kia Radial runout of assembled bearing innerring

Sd Inner ring reference face (backface,where applicable) runout with bore

D Nominal bearing outside diameterdDs Deviation of a single outside diameter

dDmp Single plane mean outside diameterdeviation

VDp Outside diameter variation in a singleradial plane

VDmp Mean outside diameter variation

dCs Deviation of a single outer ring widthVCs Outer ring width variation

Kea Radial runout of assembled bearingouter ring

SD Variation of bearing outside surfacegeneratrix inclination with outer ringreference face (backface)

Symbols for Boundary Dimensions and Running Accuracy Chamfer Dimension Limits (for Metric Design Bearings)

Remarks For bearings with nominal widths lessthan 2 mm, the value of r (max) in theaxial direction is the same as that in theradial direction.

PermissibleChamfer

Dimension forInner/Outer Rings

r (min)

Nominal BoreDiameter

d

over incl RadialDirection

AxialDirection

PermissibleChamfer

Dimension forInner/Outer Rings

r (max)

0.150.2

--

--

0.30.5

0.3 -40

40-

0.60.8

11

0.5 - - 1.2 1.7

0.6 -40

40-

11.3

22

1 -50

50-

1.51.9

33

1.1 -120

120-

22.5

3.54

1.5 -120

120-

2.33

45

2-80

220

80220-

33.53.8

4.556

2.5-

100280

100280-

3.84.55

667

2.1 -280

280-

44.5

6.57

3 -280

280-

55.5

88

4 - - 6.5 9

0.60.8

Table 4.8.1 Chamfer Dimension Limits for

Radial BearingsUnits: mm

r (max)

r (min)

r (m

ax)

r (m

in)

r (min)

Ring

(Axial Direction)

(Rad

ial D

irect

ion)

Bore Surface orOutside Surface

Sid

e Fa

ce o

fIn

ner/

Out

er R

ing

r : Chamfer Dimension of Inner/Outer Ring

Remarks The precise shape of chamfer surfaces hasnot been specified but its profile in the axialplane shall not intersect an arc of radius r(min) touching the side face of an inner ringand bore surface, or the side face of anouter ring and outside surface.

NSK NEEDLE BEARING

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A 31

to be about (0.1 to 0.15) dT in case that theshaft is cooled. The decrease in the interferenceof the inner ring due to this temperaturedifference ddT may be calculated using Equation5.4:

ddT= (0.10 to 0.15) dT・α・d

≒ 0.0015 dT・d× 10-3 (mm) ......(5.4)

where,ddT : Decrease in interference of innerring due to temperaturedifference (mm)

dT : Temperature difference betweenbearing interior and surroundingparts (°C)

α: Coefficient of linear expansion ofbearing steel = 12.5 × 10-6 (1/°C)

d : Nominal bearing bore diameter(mm)

In addition, depending on the temperaturedifference between the outer ring and housing,or difference in their coefficients of linearexpansion, the interference may increase.

5.1.5 Deformation and Stress Caused by

Fitting

When mounting a bearing with aninterference fit, deformation and stress of therings result. Calculations of surface pressure,stress, and expansion and contraction of innerand outer rings during fitting are the same asthose of a thick cylinder to which is appliedinternal or external pressure. Thesecalculations are compiled and shown in Table

5.1. The modulus of longitudinal elasticity andPoisson,s ratio of shaft and housing arecalculated as the inner and outer rings are the

A 30

5. Shaft and Housing Design

The function of the bearing cannot beachieved fully without adequate design of thebearing abutment, even though appropriatebearings can be selected from a wide range ofbearing types. In particular, the raceway ring ofneedle bearings is very thin compared withother roller bearings, so special considerationshould be taken regarding shaft and housingdesign and fitting.

5.1 Fitting

5.1.1 Purpose of Fitting

The purpose of fitting is to fix an inner ring orouter ring into the shaft or housing and toprevent harmful circumferential slipping, whichis called “creep.” Creep between fittingsurfaces causes wear and results in abrasivemetallic particles entering the bearing, whichleads to abnormal temperature rise andvibration. Fitting is also necessary for obtainingthe correct form and dimensional accuracy fordrawn cup needle bearings.

5.1.2 Type and Volume of Load

It is necessary to know which ring, inner orouter, rotates against the load. In the case ofan inner ring rotating load, creep occurs whenthe fitting between the inner ring and shaft isnot tight enough. Because creep cannot beprevented simply by fixing the inner ring axially,the fitting for the inner ring and shaft needs tobe tight. However, relatively loose fitting isoften employed to make mounting anddismounting easier. In this case, the fittingsurfaces must be well lubricated to preventfretting and scoring.

In the case of an outer ring rotating load, thefitting between the outer ring and housingshould be tight. For loads of indeterminatedirection, such as unbalanced loads, vibrationloads, and irregular dimensional loads, tightfitting of both the inner and outer rings isrecommended.

In accordance with the size of the load, theinner ring is compressed in the radial directionand becomes relatively wider while interferencedecreases. The interference must not, however,be allowed to disappear due to the radial load.

The decrease in interference, ddF, is estimatedusing the following equation:

......(5.1)

where,ddF: Decrease in interference of theinner ring (mm)

d: Nominal bore diameter (mm)B: Nominal inner ring width (mm)Fr: Radial load applied on bearing

(N), {kgf}

5.1.3 Effective Interference and Finish of

Shaft and Housing

Since the roughness of fitted surfaces isreduced during fitting, the effective interferencebecomes less than the apparent interference.The amount of this interference decrease variesdepending on the roughness of the surfacesand may be estimated using the followingequations:

For ground shafts...........................(5.2)

For machined shafts...........................(5.3)

where, dd: Effective interference (mm)dda: Apparent interference (mm)

d : Bearing nominal bore diameter(mm)

According to Equations 5.2 and 5.3, theeffective interference of bearings with a borediameter of 30 to 150 mm is about 95% of theapparent interference.

5.1.4 Interference Variation Caused by

Temperature Difference between

Bearing and Shaft or Housing

The effective interference decreases due tothe increasing bearing temperature duringoperation. If the temperature difference betweenthe bearing and housing is dT (°C), then thetemperature difference between the fittedsurfaces of the shaft and inner ring is estimated

NSK NEEDLE BEARING

ddd

F= 0.08 ― Fr× 10- 3 …… ( N) B

ddd

F= 0.25 ― Fr× 10- 3…… {kgf}B

}

ddd ≒― ―― dd a( mm)

d+ 2

ddd ≒― ―― dd a( mm)

d+ 3

NSK NEEDLE BEARING

Inner ring and shaft Outer ring and housing

Surface pressure pm

(MPa) (kgf/mm2)

Hollow shaft

Solid shaft

Circumferential stress at inner ring borefitting surface is maximum.

Circumferential stress at outer ring boresurface is maximum.

Expansion of innerring racewaydDi (mm)

Contraction of outerring racewaydDe (mm)

Maximum stressσt max

(MPa) (kgf/mm2)

Symbols

Housing outside diameter

pm kdDi = 2d―――――

Ei 1 -k2

= dd・k ―――――1 -k2k02

1 -k02

= dd・k

(hollow shaft)

(solid shaft)

pm 1dDe= 2D―――――

Ee 1 -h2

= dD・h ―――――1 -h2h02

1 -h02

σt max= pm―――1 -k 21 +k 2

σt max= pm―――1 -h2

2

d : Shaft diameter, inner ring bored0 : Hollow shaft boreDi : Inner ring raceway diameterk= d/Di, k0= d 0/dEi : Inner ring Young,s modulus,

208 000 MPa {21 200 kgf/mm2}Es : Shaft Young,s modulusmi : Inner ring poisson,s number, 3.33ms : Shaft poisson,s number

D : Housing bore diameter, outer ringoutside diameter

D0 : Housing outside diameterDe : Outer ring raceway diameterh= De /D, h0= D/D0

Ee : Outer ring Young,s modulus208 000 MPa {21 200 kgf/mm2}

Eh : Housing Young,s modulusme : Outer ring poisson,s number, 3.33mh : Housing poisson,s number

Table 5.1 Fit Calculations

dd 1pm= ― ― ― ― ――――――――――――――――― ― d

――― - ――― + 2 ―――― ―+ ― ― ― ― ― ms- 1ms Es

mi- 1miEi

k02

Es(1- k02)

1Ei(1- k2)[ [ ] ]

dd 1pm= ― ― ――――――― ――――――――― d

――― - ――― + ―――― ― ms- 1ms Es

mi- 1miEi

2Ei(1- k2)[ [ ] ]

dD 1pm= ― ― ― ― ――――――――――――――――― ― D

――― - ――― + 2 ―――― ―+ ― ― ― ― ― me- 1me Ee

mh- 1mh Eh

h2

Ee(1 - h2)1

Eh(1- h02)[ [ ] ]

Page 19: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

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NSK NEEDLE BEARINGSHAFT AND HOUSING DESIGN

A 32

same. Circumferential stress at the inner ringbore surface should be equal to or less than127 N/mm2, {13 kgf/mm2}.

Table 5.1 does not apply to drawn cupneedle bearings.

5.1.6 Recommended Fitting

As discussed above, selecting appropriatefitting requires knowledge of various conditionssuch as the actual volume and type of loadapplied to the bearing, temperature conditions,and other conditions affected by fitting.However, it is very difficult to obtain accuratedata for all factors involved. Fitting, therefore, isoften determined based on previous experienceand records. Standard fittings for needlebearings are shown in Tables 5.2 and 5.3.Generally, when mounting a bearing in a thin-wall housing or on a hollow shaft, tighter fittingis required.

A split housing cannot be used with drawncup needle bearings. If there are noalternatives, a bearing press-fitted into acylindrical sleeve can be used. It isrecommended not to use fitting tighter than thatof JS7 (J7) for solid bearings in split housings.

The fitting examples shown in Tables 5.2 and5.3 (page A33) can be applied to solid shaftsand steel or cast iron thick-wall housings. Formounting needle bearings on hollow shafts andin thin-wall or light metal housings, fitting shouldbe tighter than the values shown in Tables 5.2

and 5.3. When higher bearing accuracy isespecially required, it is necessary to enhancethe accuracy of the shafts and housings.

As correct form and dimensional accuracy ofthe outer ring of drawn cup needle bearings areobtained only after press fitting into a specifichousing bore, please refer to page B40 forfittings for drawn cup needle bearings.However, for the fittings for the inner ring andshaft being used for drawn cup needlebearings, refer to the values in Table 5.2.

Tolerances for shafts and housing borediameters are listed in Appendices 9 and 10 atthe end of this volume.

Load Conditions

Rotating OuterRing Load

Medium-speed rotationwith light or normal loadMedium-speed rotationwith heavy load

Accuracy required

Wheels on stationary axles,rope sheaves, tension pulleys,idle gears

g6

h6

h5

h5 or js5 ( j5)

js5 ( j5)

k6

m6

js5 ( j5) or k5

m5

m6

n6

p6

n6

p6

Electric appliances,precision machinery,machine tools, pumps,blowers, transport vehicles

General bearings, pumps,main bearings of mediumand large engines,woodworking machinery, gears

Industrial vehicles, constructionequipment, crushers

Light loads(less than or equal to 0.06 Cr(1))

Normal loads(0.06 to 0.13 Cr(1))

Heavy load (more than0.13 Cr(1)) or shock loads

Rotating InnerRing Load orIndeterminateDirectional Load

Examples Shaft Diameter (mm) Tolerance of Shaft

Table 5.2 Fittings between Inner Rings and Shafts of Needle Roller Bearings

Note (1) Cr represents the basic dynamic load rating of each bearing. Remarks 1. This table is applicable only to solid steel shafts.

2. For metric bearings, bearings with clearance larger than CN are used when the fitting is greater than k.

Remarks 1. This table is not applicable to drawn cup needle bearings.2. This table is applicable to steel and cast iron housings. For light metal housings, fitting should be tighter than in

this table.3. For metric bearings, bearings with clearance larger than CN are used when the fitting is greater than K.

Table 5.3 Fittings between Solid Needle Roller Bearings and Housing Bores

Load Conditions

Rotating OuterRing Load

Light or variable loads

Normal or heavy loads

Heavy shock load

Accurate running under lightloads

Light or normal loads

Normal or Heavy Loads

Shock loads

Accurate running under lightor normal loads

Light or normal load

Loads of all kings

Shock loads

Conveyors, rope sheaves, tension pulleys

Wheel hubs, crankshafts, connecting rods

Flywheels

Main spindles of machine tools

Crankshafts, pumps, compressors,large high-speed gears, blowers

Eccentric cams

Main spindles of machine tools

Gears, plummer blocks

General applications

Industrial vehicles, construction equipment, crushers

M7

N7

P7

K6

JS7 (J7)

K7

M7

JS6 (J6)

H7

H7 or G7

JS7 (J7)

IndeterminateDirectional Load

Rotating InnerRing Load

Examples Tolerance of Bores

All shaft diameters

A 18

A 50

From more than 50 to 150

B 150

A 50

From more than 50 to 100

From more than 100 to 150

From more than 150 to 200

> 200

From more than 50 to 150

> 150

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A 35

5.3 Materials and Heat Treatment ofRaceway Surface

The raceway rings and rollers of needlebearings are repeatedly stressed on theirrelatively small contact surfaces. The materialsfor raceway rings, rollers and shafts andhousings that function as raceways musttherefore have high hardness, resistance topermanent deformation and long rolling fatiguelife. These materials are also required to beresistant to wear and shock, and have gooddimensional stabilization. Common materialsused for shafts and housings that function asbearing raceways include:

High-carbon chromium bearing steel(for through hardening)

SUJ2 (JIS G 4805)Carbon steel for machine construction(for carburizing)

S15CK (JIS G 4051)Chrome molybdenum steel (for carburizing)

SCM415 to 421 (JIS G 4053)Chrome steel (for carburizing)

SCr415, 420 (JIS G 4053)Nickel chrome steel (for carburizing)

SNC415 to 815 (JIS G 4053)Nickel chrome molybdenum steel(for carburizin)

SNCM220, 415, 420 (JIS G 4053)

Other materials, such as S50C and S55C,can be utilized with through hardening orinduction hardening.

The hardened layer, which is tempered at 160to 180°C after hardening, has to develop amartensite structure that has an evendistribution of very fine carbides. In the case ofcemented or induction hardening of theraceway surface, the surface hardness shouldnot only be HRC58 to 64 (HRC60 to 64 ispreferable), but also the hardened layers withVickers hardness of HV653 (HRC58) andHV550 (HRC52.3) have to reach appropriatedepths. When the values of hardness arebelow these values, bearing fatigue lifesignificantly decreases (see page A14). Thehardened layer depth (up to HV550) aftergrinding finish is estimated by using the

following equation:t≧ (0.08 to 0.10) Dw ............................(5.5)

where, t : Effective hardened layer depth(mm)

Dw: Roller diameter (mm)

Core hardness is generally HRC30 to 45.

5.4 Abutment and Fillet Dimensions

The outer ring of solid needle bearingsshould be positioned in the axial direction usingthe housing shoulder, collar and snap ring.When mounting, the unmarked side shouldtouch the housing shoulder.

The radius ra at the rounded fillet of thehousing should be less than the minimum valueof the bearing,s chamfer dimension r. Whenmounting the inner ring on the shaft, the sameconsideration should be taken (refer to Table

5.5).

NSK NEEDLE BEARINGSHAFT AND HOUSING DESIGN

A 34

5.2 Accuracy and Roughness

5.2.1 Accuracy and Roughness of Fitting

Surfaces

Since the raceway rings of needle bearingsare extremely thin, the raceway surface isgreatly affected by the accuracy of the shaftand housing. For general operating conditions,a turned finish, smooth bored finish, or reamingfinish is acceptable. For high accuracy and lownoise under heavy load, however, a grindingfinish is required.

A finish roughness of less than1.6pmRa isdesirable. As a split housing may deform theouter ring of a thin-wall needle bearing, careshould be exercised with the bearing,s finish,such as putting a relief on the machiningsurface of the mating parts. Accuracy androughness for machining surfaces are shown inTable 5.4.

5.2.2 Accuracy and Roughness of the

Raceway Surface

The shaft and housing bore are often used asraceway surfaces of needle bearings in order toachieve the most compact bearing design andenhance shaft rigidity, load capacity andaccuracy. In this case, accuracy and

roughness of the raceway surface greatly affectthe life, noise and accuracy of bearings.Therefore, shape, accuracy and roughness haveto be treated with great care. In particular,harmful circumferential waviness and apolygonal shape are not desirable. Accuracyand roughness for raceway surfaces are shownin Table 5.4. These values may be changeddepending on the desired performance.

5.2.3 Shaft Inclination

Shaft inclination caused by external forceelastic deflection and mounting error should beless than the values indicated below. If shaftinclination exceeds the values in the table,please consult NSK.

Bearing Width(mm)

Permissible Inclination (mm/mm)

With Cage Full Complement

A 25

(25) to 50

> 50

0.0015

0.0010

0.0005

0.0010

0.0005

0.0005

Minimum PermissibleChamfer Dimension r

Fillet Radius ra ofShaft and Housing (max)

0.150.20.30.50.611.11.522.12.534

0.150.20.30.50.6111.52222.53

Table 5.5 Fillet Radius ra of Shaft

and HousingUnits: mm

Table 5.4 Shaft and Housing Specifications of Radial Needle Roller Bearings

(Cage & Needle Roller Assemblies/Drawn Cup Bearings/Solid Bearings)

CategoryRaceway Surface Fitting Surface Raceway Surface Fitting Surface

Shaft Housing Bore

Out-of-Roundness Tolerance

Cylindricity Tolerance

Roughness Ra

Hardness

IT3――2

IT3――2

0.4

IT3 IT4―― to ――2 2

IT3 IT4―― to ――2 2

0.8

IT3――2

IT3――2

0.8

IT4 IT5―― to ――2 2

IT4 IT5―― to ――2 2

1.6

HRC58 to 64 (HRC60to 64 is desirable)Appropriate depth ofhardening is required.

HRC58 to 64 (HRC60to 64 is desirable)Appropriate depth ofhardening is required.

―― ――

Remarks 1. Specifications for shafts and housings of connecting rod cage and roller assemblies are referred to on pagesB10 and B11.

2. For standard tolerances (IT), which are generally recommended according to the radius method, please refer toAppendix 14 (page C66).

Page 21: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

A 37

6. Lubrication and Lubricating Methods

6.1 Friction and Lubrication

Low friction in a bearing means low powerloss and temperature rise, which togetherenable machines to achieve higher speeds.Friction in a machine may vary depending onbearing type, structure, dimensions, as well asthe finishing accuracy of the rolling and slidingcontact surfaces. It is also influenced byoperational conditions, such as bearing load,rotating speed and lubrication. With light loadand high-speed rotation, lubrication largelyaffects the starting torque, while with heavy loadand low rotating speed, the load

,s effect

dominates. Torque converts itself into thermalenergy causing temperature rise in bearings.The degree of temperature rise is determinedby the difference between the amount of heatgenerated and that dissipated. When bearingtemperature exceeds 120°C, the characteristicsof the bearing

,s material are changed and the

lubricating agent is deteriorated.

6.1.1 Purposes of Lubrication

The main purposes of lubrication are toreduce friction and wear inside bearings thatmay cause premature failure. The effects oflubrication may be briefly explained as follows:

(1) Reduction of Friction and Wear

In needle bearings, it is necessary tolubricate the area where sliding occurs betweenthe raceway surface and rollers due to rollerskew and elastic deformation during operationin order to reduce sliding friction and wearbetween the cage and rollers, the cage andguide surface of the rotating ring, and the rollerend face and the ring

,s rib face.

(2) Extension of Fatigue Life

The rolling fatigue life of bearings dependsgreatly upon the viscosity and film thicknessbetween the rolling contact surfaces. A heavyfilm thickness prolongs the fatigue life, but it isshortened if the viscosity of the oil is too low sothe film thickness is insufficient.

(3) Dissipation of Frictional Heat and

Cooling

Circulation lubrication may be used to carryaway frictional heat or heat transferred fromoverheating and the oil from deteriorating.

(4) Others

Adequate lubrication also helps to preventforeign material from entering the bearings andguards against corrosion or rusting.

6.2 Lubricants

6.2.1 Lubricating Grease

Grease is a semi-solid lubricant consisting ofa base oil and a thickener. The main types andgeneral properties of grease are shown in Table

6.1. It should be remembered that differentbrands of the same type of grease may havedifferent properties.

(1) Base Oil

Mineral oils or synthetic oils such as siliconeor diester oil are mainly used as the base oil forgrease. The lubrication properties of greasedepend mainly on the characteristics of its baseoil. Therefore, the viscosity of the base oil is justas important when selecting grease as whenselecting an oil. Usually, greases made withlow-viscosity base oils are more suitable forhigh speeds and low temperatures, whilegreases made with high-viscosity base oils aremore suited for high temperatures and heavyloads. However, as the thickener also influencesthe lubricating properties of grease, theselection criteria for grease are not the same asfor lubricating oil.

(2) Thickener

Thickeners for lubricating grease includeseveral types of metallic soaps, inorganicthickeners such as silica gel and bentonite, andheat-resistant organic thickeners such aspolyurea and fluoric compounds. The type ofthickener is closely related to the greasedropping point ( 1 ): generally, grease with a highdropping point also has high-temperaturecapability. This said, grease does not have a

SHAFT AND HOUSING DESIGN

A 36

The shoulder height h should be less thanthe width of the side face of the outer ring andless than the thickness of the inner ring. Itshould also have sufficient surface contact. Theshaft and housing shoulder need to be finishedwith a right angle against the shaft center (Fig.

5.1).The marked side of drawn cup needle

bearings should be in contact with the mountingjig, and mounted onto the step-less throughhole. Drawn cup needle bearings should notbe positioned in the axial direction by either asnap ring or collar. The side face of the drawncup outer ring has to be 0.25 mm or moreshorter than the housing,s side face in order to

protect the bending part of the outer ring,s sideface (Fig. 5.2).

Other abutment and fillet dimensions arepresented in the introductory section for eachseries. Please refer to the related sections asrequired.

Fig. 5.1

Fig. 5.2

0.25 mm or more

NSK NEEDLE BEARING

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A 39

high working temperature unless its base oil isheat-resistant. The highest possible workingtemperature for grease should be determinedconsidering the heat resistance of the base oil.The water resistance of grease depends uponthe type of thickener. Sodium soap grease orcompound grease containing sodium soapemulsifies when exposed to water or highhumidity and therefore cannot be used wheremoisture is prevalent.

(3) Additives

Grease often contains various additives suchas antioxidants, corrosion inhibitors, andextreme pressure additives to give it specialproperties. It is recommended that extremepressure additives be used in heavy loadapplications. For long use without

replenishment, an antioxidant should be added.

(4) Consistency

Consistency refers to the “softness” ofgrease. Table 6.2 shows the relation betweenconsistency and working conditions.

(5) Mixing Different Types of Grease

In general, different brands of grease mustnot be mixed. Mixing grease with different typesof thickeners may destroy its composition andphysical properties. Even if the thickeners are ofthe same type, possible differences in additivesmay cause detrimental effects.

6.2.2 Lubricating Oil

Highly refined mineral or synthetic oil is usedas lubricant for rolling bearings. The first pointto consider when selecting lubricating oil isappropriate viscosity. This varies depending onthe type of needle bearings. Under regularoperating conditions, lubricating oil with aviscosity of 13 mm2/s (cSt) or more at theoperating temperature should be selected. Forthrust bearings, oil with a higher viscosityshould be chosen. Generally, higher rotationalspeeds require lower viscosity and larger loadsand larger bearing sizes require higherviscosity.

In addition to proper viscosity, characteristicsrequired of lubricating oil include cleanliness,resistance to corrosion, high lubricationperformance, superior oxidation resistance,fluidity at low temperatures and pressureresistance. Fig. 6.1 shows the temperature-viscosity chart for general oil. The viscositychange at a given operating temperature, aswell as the appropriate viscosity can bedetermined from this curve. The method forselecting lubricating oil under various operatingconditions is illustrated in Table 6.3.

NSK NEEDLE BEARINGLUBRICATION AND LUBRICATING METHODS

A 38

170 to 195

-20 to + 110

70

Good

Fair

Good

Good

General purposegrease used fornumerousapplications

Good lowtemperature andtorquecharacteristics.Often used forsmall motors andinstrumentbearings. Payattention to rustcaused byinsulation varnish.

Mainly for high-temperatureapplications.Unsuitable forbearings for highand low speeds orheavy loads orthose havingnumerous sliding-contact areas (rollerbearings, etc.)

Long and shortfiber types areavailable. Longfiver grease isunsuitable for highspeeds. Attentionto water and hightemperature isrequired.

Extreme pressuregrease containinghigh-viscositymineral oil andextreme pressureadditive (Pb soap,etc.) has highpressure resistance.

Often used for rollerbearings and largeball bearings.

170 to 195

-50 to + 130

100

Good

Fair

Good

Good

200 to 210

-50 to + 160

60

Good

Poor

Good

Poor

170 to 210

-20 to + 130

70

Good

Fair

Poor

Poor to Good

70 to 90

-20 to + 60

40

Poor

Poor

Good

Good

160 to 190

-20 to + 80

70

Good

Fair to Good

Poor for Na SoapGrease

Fair to Good

Name(Popular name)

Thickener

Base Oil

Properties

Dropping Point, °C

Working Temperatures,°C

Working Speed, % (1 )

Mechanical Stability

Pressure Resistance

Water Resistance

Rust Prevention

Remarks

Lithium Grease Sodium Grease(Fiber Grease)

Calcium Grease(Cup Grease) Mixed Base Grease

Li Soap

Mineral Oil Diester Oil,Polyatomic Ester Oil Silicon Oil Mineral Oil Mineral Oil Mineral Oil

Na Soap Ca SoapNa+Ca Soap,Li+Ca Soap,etc.

Table 6.1 Grease Properties

Note (1) The values listed are percentages of the limiting speeds given in the bearing tables.Remarks The grease properties shown here can vary between brands.

180 to 300

-20 to + 130

70

Good

Fair to Good

Good

Fair to Good

Suitable for extremepressuresmechanically stable

Mineral oil base grease is middle and hightemperature purpose lubricant. Synthetic oilbase grease is recommended for low or hightemperature. Some silicone and fluoric oil-based greases have poor rust prevention and noise performance.

B230

-10 to + 130

70

Good

Fair

Good

Fair to Good

B230

A + 220

40 to 100

Good

Fair

Good

Fair to Good

Complex Grease Non-Soap Based Grease(Non-Soap Grease)

Mineral Oil Mineral Oil

Synthetic Oil (Ester Oil,Polyatomic Ester OIl,Synthetic HydrocarbonOil, Silicone Oil, FluoricOil)

Ca Complex Soap,Al Complex Soap,Li Complex Soap,etc.

Urea, Bentonite, Carbon Black, FluoricCompounds, Heat Resistant OrganicCompound, etc.

ConsistencyNumber

Consistency (1)1/10 mm

WorkingConditions(Application)

・For centralizedoiling・When fretting is

likely to occur

・For centralizedoiling・When fretting is

likely to occur・For low

temperature

・For general use ・For general use・For high

temperature

・For hightemperature・For grease seals

0 1 2 3 4

355 to 385 310 to 340 265 to 295 220 to 250 175 to 205

Table 6.2 Consistency and Working Conditions

Note (1) Consistency: Depth into grease attained by a cone when pressed with a specified weight, indicated in unitsof 1/10 mm. The larger the value, the softer the grease.

Note (1) The grease dropping point is thattemperature at which a grease heatedin a specified small containerbecomes sufficiently fluid to drip.

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6.3 Lubricating Methods

6.3.1 Comparison of Grease Lubrication

and Oil Lubrication

The lubrication methods for rolling bearingsare generally classified into grease lubricationand oil lubrication. Grease lubrication can lastfrom six months to two years before beingreplenished. It is therefore ideal for reducingmaintenance. However, oil lubrication ispreferred if the design allows because of itsmany advantages over grease, including higherlimiting speed, longer lubricant life and bettercooling properties. Table 6.4 compares greaseand oil lubrication.

6.3.2 Grease Lubrication

With grease lubrication, the internal space inthe housing is required to be only 1.5 times thebearing

,s volume. Generally, the bearing is fully

packed with grease before mounting and theamount packed into the housing is 1/4 to 1/3the volume of the free internal space. When theinternal space of the housing is less than 1.5times the bearing

,s volume, it is appropriate that

the filling amount for the housing be 1/2 to 2/3the volume of the free space including thebearing itself. Grease should be supplied notonly to the space inside the housing, but to theinside of the bearing as well.

If too much grease is supplied, churning ofthe grease will result and the bearing

,s

temperature will rise. This causes deteriorationand softening of the grease resulting in leakage.Generally, once grease is packed, refilling isn

,t

necessary for a long period of time. However,the housing should be designed for easyrefilling and changing of grease. When frequentrefilling of grease is required, such as at highrotating speeds, a grease nipple should beinstalled and use of a grease gun for refilling isadvisable.

6.3.3 Replenishing Interval

Even if high-quality grease is used, there isdeterioration of its properties with time soperiodic replenishment is required. Fig. 6.2

shows the replenishment time intervals forvarious bearing types running at differentspeeds. This figure applies only if thetemperature of the bearing is less than 70°C;the replenishment time interval must be reducedby half for every 15°C temperature rise of thebearings.

The refilling intervals shown in Fig. 6.2 are forapplications where the entry of damagingforeign debris such as dust, dirt and water islimited. Therefore, when such damaging

LUBRICATION AND LUBRICATING METHODS

A 40

Fig. 6.2 Grease Replenishment Intervals

Fig. 6.1 Temperature-Viscosity Chart

Temperature

Vis

cosi

ty

Redwood(Seconds)

Saybolt(Seconds)

ISO Viscosity Gradeassumed V.l.80

Speed, n

Gre

ase

Rep

leni

shm

ent I

nter

val,

h

OperatingTemperature Speed Light or Average Load Heavy or Shock Load

-30 to 0°C

0 ~ 50°C

50 ~ 80°C

80 ~ 110°C

Less than limiting speed

Less than 50% of limitingspeed

50 to 100% of limitingspeed

More than limiting speed

Less than 50% of limitingspeed

50 to 100% of limitingspeed

More than limiting speed

Less than 50% of limitingspeed

50 to 100% of limitingspeed

More than limiting speed

ISO VG 15, 22, 32 (refrigeratingmachine oil)

ISO VG 32, 46, 68 (bearing oil,turbine oil)

ISO VG 15, 22, 32 (bearing oil,turbine oil)

ISO VG 10, 15, 22 (bearing oil)

ISO VG 100, 150, 220 (bearing oil)

ISO VG 46, 68, 100 (bearing oil,turbine oil)

ISO VG 32, 46, 68 (bearing oil,turbine oil)

ISO VG 320, 460 (bearing oil)

ISO VG 150, 220 (bearing oil)

ISO VG 68, 100 (bearing oil,turbine oil)

ISO VG 46, 68, 100 (bearing oil,turbine oil)

ISO VG 22, 32, 46 (bearing oil,turbine oil)

ISO VG 150, 220, 320 (bearing oil)

ISO VG 68, 100, 150 (bearing oil,turbine oil)

ISO VG 460, 680 (bearing oil,gear oil)

ISO VG 220, 320 (bearing oil)

Table 6.3 Examples of Selection of Lubricating Oils

Remarks 1. For the limiting speed, use the values listed in the bearing tables.2. Refer to Refrigerating Machine Oils (JIS K 2211), Bearing Oils (JIS K 2239), Turbine Oils (JIS K 2213),

Gear Oils (JIS K 2219).3. If the operating temperature is near the high end of the temperature range listed in the left column,

select a high viscosity oil.4. If the operating temperature is lower than -30°C or higher than 110°C, it is advisable to consult NSK.

Item Grease Lubrication Oil Lubrication

Limiting Speed Low andnormal speed All speeds

LubricatingPerformance Good Superior

Cooling Effect Poor Good

Lubricant Life Relatively short Relatively long

Change ofLubricant Complicated Easy

Seal Easy Complicated

Lubricant Leakage Less Slightly more

Oil Film Strength Relatively poor Good

Filtration ofForeign Matter Difficult Easy

Table 6.4 Comparison of Grease

and Oil Lubrication

NSK NEEDLE BEARING

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7. Bearing Seals

To ensure the longest possible life of abearing, it may be necessary to provide sealsto prevent leakage of lubricant and entry ofdust, water and other harmful material likemetallic particles. The seals must be free fromexcessive running friction and the probability ofseizure. They should also be easy to assembleand disassemble. It is necessary to select asuitable seal for each application consideringthe lubricating method.

Contact seals are effective because of thecontact they maintain with the shaft. They aremade of synthetic rubber, synthetic resin, felt orother materials, depending on operatingconditions and type of lubricant. Oil seals withsynthetic rubber lips are the most common.

7.1 Oil Seals

Synthetic rubber oil seals are usually used inenvironments where large amounts of dust, dirt,water and other foreign matter can easily enterbearings. Oil seals are standardized in JISB2402. Suitable oil seals for NSK drawn cupneedle roller bearings are listed in the bearingtables on page B242.

When mounting a synthetic rubber oil seal,lubricant should be applied to the seal lipbecause wear and heat generation easily occurif there is no oil film between the seal lip andshaft. When oil seals are used at highperipheral surface speed or under high internalpressure, the contact surface of the shaft mustbe smoothly finished and the shaft eccentricityshould be 0.02 to 0.05 mm or less.

The contact surface of the shaft should behardened to enhance its resistance to wear.Generally, hardness of the shaft surface shouldbe higher than HRC40. However, under high-wear conditions, it should be higher thanHRC55.

Permissible peripheral speeds andtemperature ranges are shown in Table 7.1,and criteria for the relationship between shatperipheral surface speed and the roughness ofcontact surfaces are shown in Table 7.2.

7.2 Oil Grooves

Oil grooves, flingers and labyrinths functionas non-contact seals. Sealing is achieved byseveral grooves provided on either or both theshaft and housing. Applying grooves on bothsurfaces is more efficient for oil lubrication. Theclearance between the shaft and housingshould be as small as possible. Recommendedclearance values are shown in Table 7.3.

The recommended groove width isapproximately 3 to 5 mm, with a depth of about4 to 5 mm.

When using only grooves for sealing, three ormore of them should be used. This sealingmethod is frequently used to prevent leakage of

NSK NEEDLE BEARINGLUBRICATION AND LUBRICATING METHODS

A 42

influences are present, it is necessary toshorten the refilling interval.

6.3.4 Oil Lubrication

(1) Oil Bath Lubrication

Oil bath lubrication is a widely used methodin the case of low or medium speeds. The oillevel should be at the center of the lowest roller.It is desirable to provide a sight gauge so theproper oil level may be maintained.

(2) Splash Lubrication

With this lubricating method, oil is splashedonto the bearing by a gear or rotating discinstalled near the bearing. The entry of oil intothe bearing depends on the position of thebearing, bearing type, how the splash isproduced, and other factors. Improperlubrication at the beginning of rotation occurs insome cases due to the insufficient supply of oil.The reduction gear with an oil reservoir anddevice for maintaining the oil level shown in Fig.

6.3 provides an example of how to prevent suchinsufficient initial-stage lubrication.

Another effective method of splash lubricationinvolves an oil reservoir with a V-shaped oilgroove and the positioning of the oil drain in ahigh location. Additionally, installing a devicewith a magnetic plug to protect against thepenetration of wear particles generated bygears is effective.

(3) Circulating Lubrication

Circulating lubrication is commonly used forhigh-speed operation requiring bearing coolingand for bearings used at high temperatures. Asshown in Fig. 6.4, oil is supplied by the pipe onthe right side, it travels through the bearing anddrains out through the pipe on the left. Afterbeing cooled in a reservoir, it returns to thebearing through a pump and filter. The oildischarge pipe should be larger than the supplypipe so an excessive amount of oil will not backup in the housing.

(4) Drip Feed Lubrication

This method uses an oiler from which a smallamount of oil drips into the bearing. Theamount of oil supplied varies depending onbearing type. For smaller bearings, the oilsupply rate is generally one drop every three toeight seconds. This method can be used atrelatively high speeds for normal or light loads.

(5) Other Oil Lubrication Methods

Other methods include jet lubrication and oilmist lubrication. For needle bearings, however,these are not commonly used because of thelimitation on limiting speed and space in thevicinity of the bearing.

Fig. 6.4 Circulating LubricationFig. 6.3 Splash Lubrication

Seal Materials

SyntheticRubber

Tetrafluoroethylene Resin

Nitrile RubberAcrylic RubberSilicone RubberFluorine Rubber

A 16A 25A 32A 32

-25 to +100-15 to +130-70 to +200-30 to +200

-50 to +220A 15

PermissiblePeripheral

Speed (m/s)

OperatingTemperatureRange (°C)(1)

Table 7.1 Permissible Peripheral Speeds

and Temperature Ranges

for Oil Seals

Note (1) The upper limit of the temperature range may beraised by about 20°C when operating at shortintervals.

Peripheral Speed (m/s) Surface Roughness Ra

A 5(5) to 10> 10

0.80.40.2

Table 7.2 Shaft Peripheral Speed and

Roughness of Contact Surfaces

Nominal Shaft Diameter Radial Clearance

A 50 0.25 to 0.4

(50) to 200 0.5 to 1.5

Table 7.3 Clearances between Shaft and

Housing for Oil-Groove SealsUnits: mm

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8. Bearing Handling

8.1 Precautions for Proper Handling ofBearings

Rolling bearings are high-precision machineparts and must be handled accordingly. Even ifhigh-quality bearings are used, their expectedperformance cannot be achieved if they are nothandled properly. The main precautions to beobserved are as follows:

(1) Keep Bearings and Surrounding Area

Clean

Dust and dirt, even if invisible to the nakedeye, have harmful effects on bearings. It isnecessary to prevent the entry of dust and dirtby keeping the bearings and their environmentas clean as possible.

(2) Handle Bearings Carefully

Heavy shocks during handling may causebearings to be scratched or otherwisedamaged, possibly resulting in their failure.Excessively strong impacts may causebrinelling, breaking, or cracking.

(3) Use Proper Tools

Always use the proper equipment whenhandling bearings and avoid general-purposetools.

(4) Prevent Corrosion

As perspiration from hands and various othercontaminants may cause corrosion, keep handsclean when handling bearings. Wear gloves ifpossible. Take care to prevent rusting ofbearings caused by corrosive gasses.

8.2 Mounting

Mounting methods vary depending onbearing type and conditions. It is important tofully understand each bearing and handle itproperly. In this section, general mountingmethods are described. Please note thatspecial precautions apply when mounting drawncup needle bearings (see page B41).

(1) Press Fits

Fitting with a press is very common. Themounting dolly is placed onto a raceway ring(an inner or outer bearing ring) that is on theinsertion side, then the ring is pushed up intoposition slowly by a press. An example for anouter ring is shown in Fig. 8.1.

(2) Shrink Fits

When mounting an inner ring onto a shaft,shrink fitting is widely used. The maximumheating temperature of the bearing must be no

BEARING SEALS

A 44

oil when the presence of dust and foreignparticles is relatively low. Oil grooves areefficient for both oil and grease lubrication atlow-speed operation. Filling the groove withgrease of a consistency of approximately 200 ismost effective.

7.3 Flingers (Slingers)

Flingers use centrifugal force to throw off oiland dust, and at the same time act as a pumpto prevent the leakage of oil and entry of dust.

As shown in Fig. 7.2, a flinger used forpreventing the entry of dust is effective whencombined with other bearing seals. However,due to the fact that the centrifugal force of theflinger pulls the oil inside the housing, careshould be exercised during design.

7.4 Labyrinth Seals

Among non-contact methods, the labyrinthseal is the most effective and appropriate forpreventing oil leakage from a high-speed shaft.The clearance values shown in Table 7.4 forlabyrinth seals are recommended. The sealingeffect can be enhanced by filling the clearancewith grease. Various structures for labyrinthseals exist. An example is shown in Fig. 7.3.

Fig. 7.2 Flingers

Fig. 7.3 Labyrinth Seal

Fig. 8.1Simultaneous Press Fitting of Outer Rings

Fig. 8.2Heat Temperature Differences andThermal Expansion of Inner Ring

Nominal Bore Diameter, d

Bor

e E

xpan

sion

Tem

pera

ture

Diff

eren

ce

Table 7.4 Clearance for Labyrinth Seals

Units: mm

Nominal ShaftDiameter

A 50

(50) to 200

0.25 to 0.4

0.5 to 1.5

1 to 2

2 to 5

Clearance

Radial Axial

pm

Fig. 7.1 Oil Grooves

NSK NEEDLE BEARING

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A 47

are considered only as guide values. Whendesigning withdrawal tools, rigidity tolerancesshould be 5 to 6 times the values found in thefigures.

8.4 Operating Inspection

After mounting has been completed, arunning test should be conducted to determineif the bearing has been properly mounted. Anysharp increase in speed to normal levels shouldbe avoided as this could cause damage in thebearing in the event of improper mounting orheat seizure of the bearing in the event ofincorrect lubrication.

During the operating inspection, it isnecessary to check for the following items todetermine if there are any abnormalities:

(1) Manual Inspection

・Sticking (dust and dirt, flaws)・Uneven torque (improper mounting)・Excessive torque (inadequate clearance,

high seal friction)

(2) Powered Operating Inspection

・Abnormal noise (dust and dirt, flaws,incorrect lubrication, excessive orinsufficient residual clearance)

・Operating temperature saturation,temperature rise per unit hours (incorrectlubrication, improper mounting)

During the powered inspection, graduallyincrease speed while ensuring that noabnormalities appear at each stage. Only thepowered operating inspection is necessary forlarge bearings.

8.5 Dismounting

Bearings are dismounted for periodicinspections and other purposes. When thebearing is planned to be reused afterdismounting or to have its condition examined,dismounting has to be carried out with extracare. When the fit is tight, dismounting isdifficult. Therefore, careful consideration shouldbe taken in designing the structure of thebearing vicinity.

When dismounting bearings, speciallydesigned withdrawal tools (Fig. 8.5) or presses(Fig. 8.6) are to be used.

NSK NEEDLE BEARINGBEARING HANDLING

A 46

more than 120°C. When the bearing is cooleddown after mounting, the inner ring contracts inthe axial direction, creating a clearancebetween the inner ring and shoulder. Toprevent this clearance from occurring, the innerring and shoulder should be kept in tightcontact with each other using a nut. Therelationship between heat temperaturedifferences, bearing dimensions and the amountof inner ring expansion is shown in Fig. 8.2.

(3) Driving Fits

When interference is low in bearings withsmall dimensions, driving fitting is sometimesused during mounting. In this method, ahammer (made of resin) is used to drive thering in. The mounting dolly is placed on thering

,s surface, and force must be applied

evenly to its entire surface. However, thismethod is not generally recommended becauseit often causes bearing damage.

8.3 Insertion and Removal Force

Insertion force, which is the force to press thebearing onto a shaft or into a housing withinterference, and removal force, which is theforce to remove the bearing from a shaft orhousing, are calculated using the followingequation.

K=μpmπd (or D)・B.........................(8.1)

where, K: Insertion force or removal force(N), {kgf}

pm: Surface pressure on the fittingsurface (refer to Table 5.1)(N/mm2), {kgf/mm2}

d: Nominal bore diameter (mm)D: Nominal outside diameter (mm)B: Nominal inner (outer) ring width

(mm)μ: Sliding friction coefficient of shaft

and inner ring, or of housing andouter ring (from Table 8.1)

The value pm in equation 8.1 is calculatedfrom the value found in Table 5.1. However, inthe case of an inner ring and shaft, the value k

in Table 5.1 varies, depending on bearing typeand dimension series, between 0.7 to 0.9.Assuming k= 0.8, the line graphs shown in Fig.

8.3 are calculated when the shaft is solid (i.e., k0= 0).

Likewise, the insertion and removal forcescalculated for outer rings and the housings at h= 0.9 and h0≒ 0 are shown in Fig. 8.4.

The actual insertion and removal force maysignificantly exceed calculated values due tomounting error. The values in Fig. 8.3 and 8.4

Fig. 8.3Insertion and Removal Force for Inner Ring

mm

B

Fig. 8.4Insertion and Removal Force for Outer Ring

Fig. 8.5Dismounting of Inner Ring Using

Withdrawal ToolFig. 8.6

Dismounting of Inner Ring by Press

Press

Nominal Inner Ring Width B

Effecti

ve

Interf

erenc

e,

Inse

rtio

n Fo

rce,

K (μ

=0.

12)

Rem

oval

For

ce, K

(μ=

0.18

)

Inner Ring Thickness Ratiok = 0.8

mmNominal Outer Ring Width B

Inse

rtio

n Fo

rce,

K (μ

=0.

12)

Rem

oval

For

ce, K

(μ=

0.18

)Outer Ring Thickness Ratioh = 0.9

Housing Outside Diameter,D0 = ∞

Effecti

ve

Interf

erenc

e,

When inner ring is pressed onto cylindricalshaft or outer ring is pressed into housing bore

0.12

When inner ring is removed from cylindricalshaft or outer ring is removed from housing bore

0.18

μ

Table 8.1 Coefficient of Sliding Friction

for Insertion and Removal

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BEARING HANDLING

A 48

8.6 Cleaning

When a dismounted bearing is being reused,the bearing should be cleaned to removeharmful foreign matter such as sand metallicparticles, sludge and deteriorated lubricant.Light oil or kerosene is generally used as acleaning agent. The cleaning procedure shouldbe divided into a rough wash and a finishingwash, and a container with an elevated metalnet should be used so that the bearing doesnot contact the bottom of the container.

Maintaining the cleanliness of the cleaning oilis very important. It should therefore becirculated through a filter at all times.

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BEARING TABLES

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B 3B 2 B 3B 2

BEARING TABLE CONTENTS

CAGE & NEEDLE ROLLER ASSEMBLIES ................................................................................ B 4 - B 35Metric Design Cage and Roller Assemblies

Inscribed Circle Diameter 4-150 mm ............................ B 12 - B 29Inch Design Cage and Roller Assemblies

Inscribed Circle Diameter 9.525-127.000 mm .............. B 30 - B 33Cage & Needle Roller Assemblies for Large Ends of Connecting Rods

Inscribed Circle Diameter 12 - 30 mm............................ B 34 □Cage & Needle Roller Assemblies for Small Ends of Connecting Rods

Inscribed Circle Diameter 9 - 19 mm............................ B 35 □

DRAWN CUP NEEDLE ROLLER BEARINGS ........................................................................... B 36 - B 87METRIC DESIGN ................................................................................................................................ B 46 - B 63

Open Type with Cage, Closed End Type with Cage

Inscribed Circle Diameter 10 - 55 mm ............................ B 46 - B 53Sealed Type with Cage Inscribed Circle Diameter 8 - 50 mm............................ B 54 - B 57Thin, Open Type with Cage Inscribed Circle Diameter 18 - 82 mm............................ B 58 - B 59Full Complement Open Type and Full Complement Closed End Type

Inscribed Circle Diameter 8 - 55 mm............................ B 60 - B 63INCH DESIGN ..................................................................................................................................... B 64 - B 79

Open Type with Cage, Closed End Type with Cage

Inscribed Circle Diameter 9.525 - 50.800 mm .............. B 64 - B 67Full Complement Open Type and Full Complement Closed End Type

Inscribed Circle Diameter 11.112 - 50.800 mm .............. B 68 - B 75Full Complement, Grease-Retained Roller Type

Inscribed Circle Diameter 3.969 - 47.625 mm .............. B 76 - B 79EXTRA SMALL・MINIATURE ........................................................................................................... B 80 - B 87

Metric Design Open Type with Cage and Closed End Type with Cage

Inscribed Circle Diameter 3 - 9 mm ......................... B 80 - B 81Metric Design Full Complement Open Type and Full Complement Closed End Type

Inscribed Circle Diameter 3.036 - 9 mm ......................... B 82 - B 83Inch Design Open Type with Cage and Closed End Type with Cage

Inscribed Circle Diameter 3.175 - 9.525 mm .................. B 84 - B 85Inch Design Full Complement Open Type and Full Complement Closed End Type

Inscribed Circle Diameter 3.175 - 9.525 mm .................. B 86 - B 87

SOLID NEEDLE ROLLER BEARINGS ......................................................................................... B 88 - B127METRIC DESIGN ................................................................................................................................ B 96 - B121

RLM・LM, RNA・NA Inscribed Circle Diameter 8 - 115 mm ........................ B 96 - B109RNA・NA Inscribed Circle Diameter 120 - 490 mm ........................ B110 - B113RNAF・NAF, RNAFW・NAFW Inscribed Circle Diameter 10 - 100 mm ........................ B114 - B117RNA…TT, NA…TT Inscribed Circle Diameter 14 - 125 mm ........................ B118 - B121

INCH DESIGN ..................................................................................................................................... B122 - B127HJ, HJ+IR Inscribed Circle Diameter 15.875 - 234.950 mm............ B122 - B127

INNER RINGS FOR NEEDLE ROLLER BEARINGS................................................................ B128 - B161DRAWN CUP TYPE ............................................................................................................................ B130 - B137

Metric Design (FIR) Bore Diameter 7 - 45 mm .............................................. B130 - B135Inch Design (IR) Bore Diameter 9.525 - 38.100 mm ................................ B136 - B137

SOLID TYPE ........................................................................................................................................ B138 - B161Metric Design (FIR) Bore Diameter 5 - 220 mm ............................................ B138 - B151Metric Design (FIR) Bore Diameter 8 - 50 mm .............................................. B152 - B155Inch Design (IR) Bore Diameter 9.525 - 203.200 mm .............................. B156 - B161

THRUST BEARINGS ........................................................................................................................ B162 - B175CAGE & NEEDLE ROLLER ASSEMBLIES FOR THRUST NEEDLE BEARINGS............................... B168 - B171

Metric Design Bore Diameter 10 - 100 mm .......................................... B168 - B169Inch Design Bore Diameter 6.350 - 104.775 mm .............................. B170 - B171

THRUST NEEDLE BEARINGS WITH INTEGRATED RACEWAY WASHERS ................................... B172 - B175Metric Design (FB) Bore Diameter 20 - 55 mm ......................................... B172 - B173Metric Design (FH, FG) Bore Diameter 22.6 - 43 mm ......................................... B174 - B175

CAM FOLLOWERS ........................................................................................................................... B176 - B189Metric Design Outside Diameter 10 - 90 mm........................................ B182 - B185Inch Design Outside Diameter 12.700 - 152.400 mm........................ B186 - B189

ROLLER FOLLOWERS..................................................................................................................... B190 - B197Metric Design Bore Diameter 5 - 50 mm .............................................. B194 - B195Inch Design Bore Diameter 6.350 - 57.150 mm ................................ B196 - B197

NEEDLE ROLLERS............................................................................................................................ B198 - B207Metric Design Roller Diameter 1 - 5 mm ............................................... B200 □Inch Design Roller Diameter 0.792 - 6.350 mm ................................. B207 □

SPHERICAL PLAIN BEARINGS .................................................................................................... B208 - B219Metric Design Bore Diameter 12 - 160 mm .......................................... B214 - B217Inch Design Bore Diameter 12.700 - 152.400 mm ............................ B218 - B219

NEEDLE ROLLER BEARINGS FOR UNIVERSAL JOINTS .................................................. B220 - B227Drawn Cup Type Inscribed Circle Diameter 10 - 21.3 mm ........................ B224 - B225Solid Type Inscribed Circle Diameter 12.170 - 32.600 mm .............. B226 - B227

DRAWN CUP ROLLER CLUTCHES ............................................................................................ B228 - B237FC, FLC, RC Inscribed Circle Diameter 4 - 30 mm ............................. B234 - B235FCB, FCBN, RCB Inscribed Circle Diameter 4 - 30 mm ............................. B236 - B237

OIL SEALS FOR NEEDLE ROLLER BEARINGS ...................................................................... B238 - B242Single-Lip Synthetic Rubber Seals................................................................................................... B242 □Double-Lip Synthetic Rubber Seals ................................................................................................. B242 □

Page Page

NSK NEEDLE BEARING NSK NEEDLE BEARING

Page 30: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 5

NSK cage & Needle roller assemblies consist of a complement of needlerollers held in place by a cage. Their unitized design makes for easyhandling and installation. With no inner or outer ring, the low cross-sectionprovides maximum load-carrying capability within the smallest envelope.Properly lubricated, they can operate at high speeds thanks to the uniquecage, which guides the rollers precisely. The controlled contour rollers incage & Needle roller assemblies have an optimum profile which reducesend stresses, allows operation under moderate misalignment and prolongsbearing life.

DESIGN AND TYPES

The most common cage used in cage & Needle roller assemblies is theM-type. M-type cages are either pressed from steel plate or machined.These cages undergo surface hardening after processing to attain highwear resistance and rigidity. The cages facilitate optimum lubricationconditions because lubricant can be easily replenished. Other cagesinclude those made by precision pressing, welded cages and polyamidemolded cages. Welded cages, which are produced by welding pressedsteel, as especially suited for mass production. Applying its considerableexperience and knowledge, NSK supplies cage & Needle roller assembliesof the highest quality.

Codes for the various types of cage & Needle roller assemblies areshown in Table 1. There are many types of cage & Needle rollerassemblies other than those in Table 1, including split cages. Cage &Needle roller assemblies for engine connecting rods are included on pageB9 as one of a special series.

NSK NEEDLE BEARING

B 4 B 5B 4

CAGE & NEEDLE ROLLER ASSEMBLIESPages

Metric Design Cage & Needle Roller Assemblies

Inscribed Circle Diameter 4-150 mm ...................... B12-B29

Inch Design Cage & Needle Roller Assemblies

Inscribed Circle Diameter 9.525-127.000 mm ........ B30-B33

Cage & Needle Roller Assemblies for Large Ends of Connecting Rods

Inscribed Circle Diameter 12-30 mm ............................... B34

Cage & Needle Roller Assemblies for Small Ends of Connecting Rods

Inscribed Circle Diameter 9-19 mm ................................. B35

Page 31: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 7

NSK NEEDLE BEARINGCAGE & NEEDLE ROLLER ASSEMBLIES

B 6 B 7B 6

(Example) FWD-202620

Table 1 Cage & Needle Roller Assembly Codes

Cage Type

Single Row

M Cage

FBN Cage

Welded Cage

Polymide Cage

M Cage

FBN Cage

Welded Cage

Polymide Cage

WFJ, FWF

FBN

FWJC, FWJW

FBNP

FWF ... W,FDJ

FBN ... W

FDJC

FBNP ... W

WJ

WJC

DJ

DJC

Double Row

Code

Metric Inch

An example of a bearing number is as follows:

Width (mm)Circumscribed Circle Diameter (mm)Inscribed Circle Diameter (mm)Code

2

3

5

0

0

0

-5

-5

-5

1

1.5

2

1

1.5

2.5

2

3

5

h13

h13

h13

Deviation inlength, (2 )

dLWS

Diameter Variationwithin

Gauge Lot, (1 )VDWL

max

Deviation fromCircular Form, (1 )

dR

max

Diameter Variationin a Single

Radial Plane, (1 )VDWP

max

Tolerance inAverage Value of

Diameter

high low

Class

Note (1) Applies at the center of roller’s length.(2) Depends on Lw classification. h13 is shown in Table 5, page B201.

Remarks Deviation between the actual measured diameter at any point over the entire length of roller andthe actual maximum diameter at the center of the entire length must not exceed the followingvalues:

Class 2: 0.5 pmClass 3: 0.8 pmClass 5: 1 pm

Table 2 Accuracy of Needle RollersUnits: pm

Item

Out-of-RoundnessTolerance

IT3――2IT3――2

0.4

HRC58 to 64Appropriate depth ofhardened layer required

IT3――2IT3――2

0.8

HRC58 to 64Appropriate depth ofhardened layer required

Cylindricity Tolerance

Hardness

Roughness, Ra

Shaft Housing

Table 3 Accuracy and Hardness for Shaft and Housing

Remarks For details, please refer to Section 5.2 on page A34 and Section 5.3 onpage A35.

Type

Metric

Inch

Tolerance for b

Bc+0.2

0

Bc+0.4+0.2

Table 4 Tolerances for Guide Width, b

Fig. 1

For inch bearings, each dimension is expressed with two digit wholenumbers in units of 1/16 of an inch following the type code.

ACCURACY STANDARDS

NSK cage & Needle roller assemblies use rollers classified as JIS thirdclass or higher. Roller accuracy is shown in Table 2.

APPLICATION

Mounting

(1) With cage & Needle roller assemblies, the shaft and housing aregenerally used as raceway rings. It is important to satisfy the finishaccuracy and hardness requirements in Table 3.

(2) Guide width for cage & Needle roller assembliesThe tolerances for the guide width, b, are based on cage width, Bc, and

shown in Table 4 (see Fig. 1).

(3) Fillet RadiusThe fillet radius of the shaft and housing shoulder in contact with the cage

end surface should not interfere with the cage itself.

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B 9

NSK NEEDLE BEARING

B 9

CAGE & NEEDLE ROLLER ASSEMBLIES

B 8B 8

High Accuracy,Oscillating Motion

NormalHigh Temperature,

Large Shaft Deflection,Mounting Error

OperatingConditions

Fitting Tolerance for Housing Bore G6

j5

h5

G6

h5

G6

f6g5

Fitting Tolerancefor Shaft

Fw≦ 50mm

Fw> 50mm

Table 5 Fitting Tolerances for Shafts and Housing Bores

Cage Width (mm)

<― 25

(25) to 50

> 50

0.0015

0.0010

0.0005

Permissible Inclination (mm/mm)max

Table 6 Shaft Inclination

Fitting Tolerances for Shafts and Housing Bores

Fitting tolerances for shafts and housing bores under various operatingconditions are shown in Table 5.

Shaft Inclination

Permissible shaft inclinations from elastic deflection by external force andmounting error are shown in Table 6. When shaft inclination exceeds that inthis table, please consult NSK because it is necessary to change the amountof the rollers' crowning and increase the internal clearance.

Cage & Needle roller assemblies for connecting rods used in smallgeneral-purpose engines such as those in compact cars, motorcycles,outboard marine motors, snow-mobiles and chain-saws operate in harshconditions characterized by shock loads, complex motion, hightemperatures, and lubrication difficulties. Cage & Needle rollerassemblies FWF ... E, FBN ... E are specially designed for suchconditions. Cage & Needle roller assemblies for connecting rods containa highly rigid and wear-resistant lightweight cage and high-accuracyrollers with special crowning.

TYPES

Cage & Needle Roller Assemblies for the Large Ends ofConnecting Rods FWF ... E

FWF ... E Cage & Needle roller assemblies for large ends ofconnecting rods are lightweight and highly rigid. Their outside surface isaccurately finished to maintain proper guide clearance during operation.Special steel that is hardened to the proper depth by carbonitriding isused as material for the cages. Depending on operating conditions, wear resistance is enhanced by surface treatment with non-ferrous metal.

For integrated one-piece crankshafts, split cage & Needle rollerassemblies are also manufactured.

Cage & Needle Roller Assemblies for the Small Ends ofConnecting Rods FBN ... E

Owing to their high static load rating, cage & Needle roller assembliesfor small ends of connecting rods contain many long rollers withdiameters of 1.5 to 2.5 mm, lowering the contact pressure within the loadzone. Depending on the structure of the engine, a bore surface-guidedor outside diameter-guided cage is used.

Cage & Needle Roller Assemblies for Connecting Rods

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B 11

NSK NEEDLE BEARINGCAGE & NEEDLE ROLLER ASSEMBLIES

B 10

Diameter Classification(mm)

over

18

30

18

30

40

5

6

8

3

4

4

4

4

5

2

2

3

inclOut-of-roundness

maxCylindricity

maxOut-of-roundness

maxCylindricity

max

Large/Small End Bore Crank Pin/Gudgeon Pin

Table 1 Out-of-Roundness and Cylindricity of RacewayUnits: pm

Shaft DiameterClassification (mm)

over

6

10

18

30

10

18

30

12

14

18

24

28

34

5

6

7

15

18

20

incl min max min max

Large End Small End

Table 2 Recommended Radial Internal Clearance

Units: pm

APPLICATIONS

Specifications for Connecting Rods,Crank Pins and Gudgeon Pins

The small and large end bores of the connecting rod, which function as theraceway surface of the cage & Needle roller assemblies, and the outsidediameter of the crank pin and gudgeon pin must have the following specifica-tions in order to obtain the beat performance, even under harsh operatingconditions, from cage & Needle roller assemblies for connecting rods.

(1) Raceway Surface Roughness

The roughness of the raceway surface of the crank pin and gudgeon pin,which can lead to premature wear under severe operating conditions, shouldbe approximately 0.1pmRmax. Roughness for the large end bore and smallend bore of the connecting rod should be 0.25pmRa or less.

(2) Raceway Surface Hardness and Effective Hardened Layer Depth

The surface hardness of the raceway should be HRC60 to 64. Theeffective hardened layer depth (depth to HV550) varies depending on loadconditions, but should range from 0.6 to 1.2 mm.

(3) Raceway Accuracy

Requirements for out-of-roundness and cylindricity of the raceway are listedin Table 1.

(4) Parallelism for Large and Small End Bores of Connecting Rods

Improper parallelism between the large end bore and small end bore of theconnecting rod decreases engine performance. The two bores therefore haveto be finished with a high degree of accuracy. It is recommended thatparallelism is less than or equal to 0.04 mm for each 100 mm for normal andlow speeds, and less than or equal to 0.02 mm for each 100 mm for highspeeds.

(5) Abutment Tolerance for Mounting

Radial internal clearance in cage & Needle roller assemblies for connectingrod large and small ends should be determined by engine type,characteristics, and operating conditions. In general, h5 for the pistondiameter, G6 for the samall end bore, g5 or f5 for the crank pin diameter, and G6 for the large end bore should be applied. When the radial internalclearance has to be strictly limited, it is recommended to use the values inTable 2. As to the large end, the upper limit of the internal clearanceshould be the target value under high-speed rotation.

Page 34: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 13

NSK NEEDLE BEARINGCAGE & NEEDLE ROLLER ASSEMBLIES

B 12

FWF

FBN ● FBNP

Inscribed Circle Diameter 4 - 12 mm

45

6

7

8

9

10

11

12

78

99

10

1010

111111

1212

131313

131414

1416

14

151515

151616

1718

78

81013

810

81013

1013

81011

138

10

1312

10

91012

131013

1312

1 7102 330

2 2002 9804 300

2 8403 650

3 0503 5004 750

3 7505 100

3 4503 9504 450

5 4003 7505 350

6 5007 700

3 950

4 3504 3505 400

5 9505 7007 350

8 2509 150

1 2201 860

1 7802 6303 600

2 5603 550

2 9003 4505 150

3 8505 750

3 6004 3005 000

6 3503 3005 300

6 7506 650

4 350

5 1005 1006 750

7 6005 9508 350

8 3508 650

175237

224305435

290375

310360485

380520

355405455

550385545

660785

400

445445555

605580750

840935

124189

182268365

261360

296355525

395585

365435505

650340540

690680

440

520520690

775610850

855885

0.51.0

1.21.52.8

1.31.6

1.41.82.6

2.02.6

2.02.22.4

2.92.53.1

4.06.0

2.6

2.42.63.1

3.43.64.6

6.06.9

120 00095 000

75 00075 00080 000

67 00067 000

56 00056 00056 000

50 00050 000

45 00045 00045 000

45 00045 00045 000

45 00048 000

40 000

36 00036 00036 000

36 00038 00038 000

38 00038 000

*FBNP-477*FBNP-588

*FBNP-698*FBNP-6910*FBNP-61013

*FBNP-7108*FBNP-71010

*FBNP-8118*FBNP-81110*FBNP-81113

*FBNP-91210*FBNP-91213

FBN-10138FBN-101310FBN-101311

FBN-101313FBN-10148FWF-101410

FWF-101413FWF-101612

FBN-111410

FBN-12159FBN-121510FBN-121512

FBN-121513FWF-121610FWF-121613

FWF-121713FWF-121812

Boundary Dimensions(mm)

Fw Ew Bc

Basic Load Ratings(N) {kgf}

Cr Cor Cr Cor

LimitingSpeeds(min-1)

Oil

Bearing Numbers

Mass(g)

approx-0.2-0.55

φEw φFw φFwφEw

Bc Bc

FWF FBN, FBNP

* These bearings have polyamide cages. The maximum permissible operating temperaturefor these bearings is 100°C for continued operation and 120°C for short periods.

Page 35: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 15

NSK NEEDLE BEARINGCAGE & NEEDLE ROLLER ASSEMBLIES

B 14

FWF ● FWJ

Inscribed Circle Diameter 14 - 17 mm

14

15

16

17

181818

18182020

191919

20212121

202020

212121

212222

222222

2224

212121

21212223

101113

17201217

101317

13151721

101317

131726

271213

172022

2420

101315

16172017

6 7506 6508 050

10 70012 100

9 85013 400

7 0508 400

11 200

9 95012 60013 40016 300

7 3508 800

11 700

10 50013 00020 000

20 80010 50010 900

14 70017 00018 700

20 30020 800

7 65010 20010 800

11 50011 50015 40015 100

7 7507 6009 750

14 10016 400

9 80014 600

8 40010 50015 200

11 30013 60014 80018 900

9 00011 30016 300

12 30016 20028 200

29 60010 90011 500

16 90020 30022 900

25 60022 200

9 65014 00015 000

16 30016 30020 40017 800

690675820

1 0901 2301 0101 370

720860

1 140

1 0101 2801 3701 660

750895

1 190

1 0701 3302 040

2 1201 0701 120

1 5001 7301 900

2 0702 120

7801 0401 100

1 1701 1701 5701 540

790775995

1 4301 6701 0001 490

8551 0701 550

1 1501 3801 5101 930

9201 1501 660

1 2501 6602 880

3 0001 1201 180

1 7202 0702 340

2 6102 270

9851 4201 530

1 6701 6702 0801 810

4.14.55.3

6.910

7.811

4.35.67.4

7.2101214

4.66.07.8

7.71015

168.79.4

121416

1720

4.86.37.5

8.08.2

1614

32 00032 00032 000

32 00032 00032 00032 000

28 00028 00028 000

30 00030 00030 00030 000

26 00026 00026 000

28 00028 00028 000

28 00028 00028 000

28 00028 00028 000

28 00030 000

26 00026 00026 000

26 00026 00026 00026 000

FWF-141810FWF-141811FWF-141813

FWF-141817FWF-141820FWF-142012FWF-142017

FWF-151910FWF-151913FWF-151917

FWF-152013FWF-152115FWF-152117FWF-152121A

FWF-162010FWF-162013FWF-162017

FWF-162113FWF-162117FWF-162126

FWF-162127FWF-162212FWF-162213

FWF-162217FWF-162220FWF-162222

FWF-162224FWF-162420

FWF-172110FWJ-172113FWF-172115

FWF-172116FWF-172117FWF-172220FWF-172317

φEw φFw

Bc

FWF, FWJ

Boundary Dimensions(mm)

Fw Ew Bc

Basic Load Ratings(N) {kgf}

Cr Cor Cr Cor

LimitingSpeeds(min-1)

Oil

Bearing Numbers

Mass(g)

approx-0.2-0.55

Page 36: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 17

NSK NEEDLE BEARINGCAGE & NEEDLE ROLLER ASSEMBLIES

B 16

FWF ● FWJ

FWF…W

FBN…W

Inscribed Circle

Diameter 17.57 - 21 mm

FWF…W FBN…W

φEw φFw

Bc

φEw φFw

Bc

17.57

18

19

19.1

20

21

22.623.6

222222

222324

242424

252525

23232431

31.1

242424

252626

262626

2628

2525

2132

101317

282012

131720

141722

13172824

24

101317

401213

161720

2420

1317

16 60029 300

7 9009 450

12 600

16 10016 60011 700

12 80017 40018 900

14 20016 50021 300

9 90012 30023 80031 500

31 000

8 0009 700

12 400

30 00012 20013 100

16 60018 00019 200

23 20019 800

10 50013 100

22 70042 000

10 30012 90018 600

25 40022 90013 000

14 60021 60024 100

15 20018 30025 500

13 90018 50037 00031 500

30 500

10 70013 70018 800

50 50014 10015 500

21 00023 20025 200

32 00021 700

15 50020 600

1 7002 990

805965

1 280

1 6401 6901 190

1 3001 7701 930

1 4501 6802 170

1 0101 2602 4203 200

3 150

815990

1 260

3 0501 2501 340

1 7001 8301 960

2 3602 020

1 0701 340

2 3204 300

1 0501 3101 900

2 5902 3401 320

1 4902 2102 460

1 5501 8602 600

1 4201 8803 7503 200

3 150

1 0901 4001 910

5 1501 4401 580

2 1402 3702 570

3 2502 210

1 5802 100

1325

5.16.68.7

16139.6

101416

131921

7.09.1

1945

46

5.67.39.5

291011

141518

2128

7.610

24 00026 000

24 00024 00024 000

24 00024 00024 000

24 00024 00024 000

24 00024 00024 000

22 00022 00022 00026 000

24 000

20 00020 00020 000

22 00022 00022 000

22 00022 00022 000

22 00022 000

20 00020 000

FWF-172221ZFWJ-172332Z

FWF-182210FWF-182213FWF-182217

FBN-182228WFWF-182320FWF-182412

FWF-182413FWJ-182417FWF-182420

FWF-182514FWF-182517FWF-182522

FWF-192313FWF-192317FWJ-192428FWF-193124

FWJ-193124Z

FWF-202410FWF-202413FWF-202417

FWF-202540WFWF-202612FWF-202613

FWF-202616FWJ-202617FWF-202620

FWF-202624FWF-202820

FWF-212513FWF-212517

φEw φFw

Bc

FWF, FWJ

Boundary Dimensions(mm)

Fw Ew Bc

Basic Load Ratings(N) {kgf}

Cr Cor Cr Cor

LimitingSpeeds(min-1)

Oil

Bearing Numbers

Mass(g)

approx-0.2-0.55

Page 37: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 19

NSK NEEDLE BEARINGCAGE & NEEDLE ROLLER ASSEMBLIES

B 18

FWF ● FWJ

FBN

FBN…W

Inscribed Circle

Diameter 22 - 26 mm

22

23

24

25

26

262626

262728

28282930

28

282828

2930

292929

303030

303131

313132

323333

303030

101113

172013

17231614

24

131725

1317

101317

131720

251317

202416

242024

131724

8 6008 600

10 300

13 00018 00013 700

17 30023 60017 10017 400

22 400

10 50014 60015 900

10 70017 900

9 35011 30014 800

13 50017 20018 800

23 60015 00019 200

22 10026 50018 700

28 30028 40033 000

10 40014 40017 900

12 20012 20015 300

20 70027 00016 700

22 70034 00020 20019 000

36 000

16 10024 70027 400

14 10024 300

14 10018 00025 500

19 50026 40029 700

39 50019 50026 800

32 00040 50023 500

40 00037 00045 000

16 20024 90032 500

880880

1 050

1 3301 8401 390

1 7602 4101 7501 770

2 280

1 0701 4901 620

1 0901 830

9501 1501 510

1 3801 7501 920

2 4101 5201 950

2 2502 7001 910

2 8802 9003 400

1 0601 4701 820

1 2401 2401 560

2 1102 7601 700

2 3103 4502 0601 930

3 700

1 6502 5102 800

1 4302 480

1 4401 8302 600

1 9802 6903 050

4 0501 9902 740

3 3004 1502 390

4 0503 7504 600

1 6602 5403 350

6.17.27.9

101612

16221824

20

8.61119

1114

6.98.9

12

111415

211718

212620

303036

9.31220

19 00019 00019 000

19 00020 00020 000

20 00020 00020 00020 000

19 000

17 00017 00017 000

18 00018 000

17 00017 00017 000

17 00017 00017 000

17 00017 00017 000

17 00017 00017 000

17 00018 00018 000

16 00016 00016 000

FWF-222610FWF-222611FWF-222613

FWF-222617FWF-222720FWF-222813

FWF-222817FWF-222823FWF-222916FWF-223014

FWF-232824

FWF-242813FWF-242817FBN-242825W

FBN-242913FWF-243017

FWF-252910FWF-252913FWF-252917

FWF-253013FWF-253017FWF-253020

FWF-253025FWF-253113FWF-253117

FWF-253120FWF-253124FWF-253216

FWF-253224FWJ-253320FWJ-253324

FWF-263013FWF-263017FBN-263024

φEw φFw

Bc

FWF, FWJ FBN FBN…W

φEw φFw

Bc

φEw φFw

Bc

Boundary Dimensions(mm)

Fw Ew Bc

Basic Load Ratings(N) {kgf}

Cr Cor Cr Cor

LimitingSpeeds(min-1)

Oil

Bearing Numbers

Mass(g)

approx-0.2-0.55

Page 38: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 21

NSK NEEDLE BEARINGCAGE & NEEDLE ROLLER ASSEMBLIES

B 20

FWF ● FWJ

FWF…W

FBN…W

Inscribed Circle

Diameter 28 - 34 mm

FBN…W

φEw φFw

Bc

28

29

30

32

34

333333

333334

3536

343434

353535

353636

363737

38383840

363737

373737

383839

3940

39

131720

262717

2020

172427

131720

271420

261620

18202725

291317

232728

202616

2020

23

13 70017 10021 900

27 10028 10019 900

25 20026 200

17 50025 40026 600

14 00018 70021 000

28 70018 40024 300

29 60022 20026 000

25 50025 90038 50038 500

22 30015 10018 500

24 30031 50025 200

24 90033 00022 900

27 30028 400

25 100

20 40027 10037 500

49 00051 50029 100

35 50034 000

28 40046 00048 500

21 60031 50036 000

54 00026 90038 500

49 50031 00038 000

34 00034 50057 50049 500

46 50024 40031 500

44 50063 00047 000

40 50059 00033 000

41 00039 500

47 500

1 4001 7402 240

2 7602 8602 020

2 5702 670

1 7902 5902 710

1 4301 9102 140

2 9201 8702 480

3 0002 2702 650

2 6002 6403 9503 950

2 2701 5401 880

2 4803 2502 570

2 5403 4002 330

2 7802 890

2 560

2 0802 7603 800

5 0005 2502 970

3 6503 450

2 9004 6504 950

2 2003 2003 700

5 5002 7503 950

5 0503 1503 850

3 4503 5005 8505 050

4 7502 4803 200

4 5506 4004 800

4 1506 0003 350

4 2004 000

4 850

131620

252620

2233

172427

141821

281825

332430

32354768

321419

253031

273525

3237

27

15 00015 00015 000

15 00015 00015 000

15 00016 000

14 00014 00014 000

14 00014 00014 000

14 00014 00014 000

14 00014 00014 000

14 00014 00014 00015 000

13 00013 00013 000

13 00013 00013 000

13 00013 00013 000

13 00013 000

12 000

FWF-283313FWF-283317FWJ-283320

FWF-283326FWF-283327FWF-283417

FWF-283520FWF-283620

FWF-293417FWF-293424FWF-293427

FWF-303513FWF-303517AFWF-303520

FWF-303527FWF-303614FWF-303620

FWF-303626FWF-303716FWF-303720

FWF-303818FWF-303820FWF-303827FWF-304025

FBN-323629WAFWF-323713FWJ-323717

FWJ-323723FWJ-323727FWF-323728W

FWF-323820FWF-323826FWJ-323916

FWF-323920FWF-324020

FWJ-343923

φEw φFw

Bc

FWF, FWJ FWF…W

φEw φFw

Bc

Boundary Dimensions(mm)

Fw Ew Bc

Basic Load Ratings(N) {kgf}

Cr Cor Cr Cor

LimitingSpeeds(min-1)

Oil

Bearing Numbers

Mass(g)

approx-0.2-0.55

Page 39: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 23

NSK NEEDLE BEARINGCAGE & NEEDLE ROLLER ASSEMBLIES

B 22

FWF ● FWJ

FBN

Inscribed Circle

Diameter 35 - 38.1 mm

35

36

37

38

38.1

404040

404040

404042

42424244

41414848

424242

424244

434343

444646

50.8

131720

252627

3032.716

18203018

2630.522.525

1314.517

273018

131727

272032

24.7

14 90020 50026 400

27 20027 20031 500

34 00030 50022 700

25 90030 00043 00029 600

30 00032 00045 50048 500

16 50015 40020 300

31 50035 50026 500

16 40020 40032 500

39 00031 50047 500

50 500

24 60037 00051 000

53 00053 00064 000

71 50061 00033 500

39 50047 50075 50039 500

61 00066 00057 50062 500

28 40026 00037 000

66 00077 00041 500

28 50038 00068 500

76 50047 00080 500

64 000

1 5202 0902 690

2 7702 7703 200

3 5003 1002 310

2 6403 0504 3503 000

3 0503 2504 6504 950

1 6801 5702 070

3 2503 6502 700

1 6702 0803 300

4 0003 2004 850

5 150

2 5003 7505 200

5 4005 4006 500

7 3006 2503 400

4 0004 8507 7004 050

6 2506 7005 9006 350

2 9002 6503 800

6 7007 8504 200

2 9003 8507 000

7 8004 8008 200

6 500

162026

303132

344028

31345441

31377280

161521

344332

172235

424375

93

12 00012 00012 000

12 00012 00012 000

12 00012 00012 000

12 00012 00012 00012 000

11 00011 00012 00012 000

11 00011 00011 000

11 00011 00011 000

11 00011 00011 000

11 00011 00011 000

11 000

FWF-354013FWF-354017FWJ-354020

FBN-354025FBN-354026FWF-354027

FWF-354030FBN-354032ZFWF-354216

FWF-354218FWJ-354220FWF-354230FWF-354418

FWF-364126FWJ-364130ZFWF-364822ZFWF-364825

FWF-374218FWJ-374214ZAFWJ-374217

FWJ-374227FWF-374230FWF-374418

FWF-384313FWF-384317FWF-384327

FWJ-384427FWF-384620FWF-384632

FWJ-385024Z

φEw φFw

Bc

FWF, FWJ FBN

φEw φFw

Bc

Boundary Dimensions(mm)

Fw Ew Bc

Basic Load Ratings(N) {kgf}

Cr Cor Cr Cor

LimitingSpeeds(min-1)

Oil

Bearing Numbers

Mass(g)

approx-0.2-0.55

Page 40: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 25

NSK NEEDLE BEARING

FWF…W

φEw φFw

Bc

CAGE & NEEDLE ROLLER ASSEMBLIES

B 24

FWF ● FWJ

FWF…W

FBN

Inscribed Circle

Diameter 40 - 52 mm

40

42

43

45

46

47

48

50

5152

454545

454648

4848

474750

484849

505051

5353

52

52525255

5354

555555

565858

5660

131727

303020

2534

172720

172731

172735

2025

37

17273028

23.520

202730

202025

50.824

15 70021 00032 000

35 00035 00032 500

40 50053 500

19 60030 50033 000

22 80033 50044 000

21 60034 00046 000

34 00044 000

43 500

23 40034 50036 50051 500

30 00029 800

26 90035 00039 500

28 10038 50048 500

60 00046 000

27 50040 00068 000

77 00067 00049 500

66 50095 000

37 00065 00052 500

45 50075 00092 000

43 00077 50099 500

55 00077 000

94 000

48 50079 50086 00096 000

67 00058 500

59 00083 00096 500

54 50067 50090 500

166 00086 000

1 6102 1503 250

3 6003 5503 300

4 1505 450

2 0003 1003 400

2 3303 4504 450

2 2003 5004 700

3 4504 500

4 450

2 3903 5003 7505 250

3 0503 050

2 7503 6004 000

2 8703 9504 950

6 1004 700

2 8004 0506 900

7 8506 8005 050

6 8009 700

3 7506 6005 350

4 6507 6509 400

4 3507 900

10 100

5 6007 850

9 600

4 9008 1508 7509 800

6 8505 950

6 0508 4509 800

5 6006 9009 200

16 9008 750

182336

405045

5676

243847

253955

264161

5062

75

27434773

4739

375056

516177

9546

10 00010 00010 000

10 00010 00010 000

10 00010 000

10 00010 00010 000

9 5009 5009 500

9 0009 0009 000

9 5009 500

9 000

8 5008 5008 5009 000

8 5008 500

8 0008 0008 000

8 0008 5008 500

8 0008 000

FWF-404513FWF-404517AFWF-404527

FWJ-404530FWF-404630FWF-404820

FWF-404825FWF-404834

FBN-424717FBN-424727FWF-425020

FWF-434817FWF-434827FWJ-434931

FWF-455017FWF-455027FWJ-455135

FWF-455320FWF-455325

FWF-465237W

FWF-475217FWF-475227FWF-475230FWF-475528

FBN-485323ZFWF-485420

FWF-505520FWF-505527FWF-505530

FBN-505620FWF-505820FWF-505825

FWF-515650WZFWF-526024

φEw φFw

Bc

FWF, FWJ FBN

φEw φFw

Bc

Boundary Dimensions(mm)

Fw Ew Bc

Basic Load Ratings(N) {kgf}

Cr Cor Cr Cor

LimitingSpeeds(min-1)

Oil

Bearing Numbers

Mass(g)

approx-0.2-0.55

Page 41: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 27

NSK NEEDLE BEARINGCAGE & NEEDLE ROLLER ASSEMBLIES

B 26

FWF

FWF…W

FBN

Inscribed Circle

Diameter 55 - 73 mm

FWF…W

φEw φFw

Bc

55

56

57

58

60

65

68

70

72

73

606060

61616363

6161

73

6465

656565

666667

68686868

707073

7474

767678

7879

7979

202730

20302025

3033.5

30

4026.5

202741

203023

20232527

203030

2030

203030

4021

2030

27 50036 00041 000

31 00047 00040 00050 000

38 50041 000

89 500

54 00045 000

29 00038 00050 500

33 00050 00041 500

41 50047 50052 00051 500

27 90044 50061 000

33 00052 000

35 50053 50063 000

60 00042 000

36 00055 000

62 50089 000

105 000

64 000109 000

73 00097 500

97 500105 000

129 000

132 00095 000

69 00098 500

141 000

71 500122 000

86 500

78 00094 000

105 000103 000

67 500123 000132 000

74 000135 000

82 500141 000140 000

163 00093 000

85 500147 000

2 8003 7004 200

3 1504 7504 1005 100

3 9504 150

9 150

5 5004 600

2 9603 9005 150

3 3505 1004 250

4 2004 8505 3005 250

2 8504 5506 200

3 3505 300

3 6005 4506 400

6 1004 300

3 6505 600

6 3509 100

10 700

6 50011 1007 4509 950

9 95010 700

13 100

13 5009 700

7 05010 00014 400

7 30012 4008 800

7 9509 600

10 70010 500

6 90012 50013 400

7 55013 700

8 45014 40014 300

16 7009 500

8 70015 000

415561

53817085

6270

77

10481

446291

578773

73849198

4872

120

6091

6293

125

14579

6597

7 5007 5007 500

7 5007 5007 5007 500

7 1007 100

7 500

7 1007 100

6 7006 7006 700

6 7006 7006 700

6 7006 7006 7006 700

6 3006 3006 300

6 0006 000

5 6005 6006 000

5 6005 600

5 6005 600

FWF-556020FWF-556027FWF-556030

FWF-556120FWF-556130FWF-556320FWF-556325

FWF-566130FWF-566133Z

FWF-577330A

FWF-586440WFWF-586526Z

FWF-606520FWF-606527FWF-606541W

FWF-606620FWF-606630FWF-606723

FWF-606820FWF-606823FWF-606825FWF-606827

FBN-657020FWF-657030FWF-657330

FBN-687420FWF-687430

FWF-707620FWF-707630FWF-707830

FWF-727840WFWF-727921

FBN-737920FWF-737930

φEw φFw

Bc

FWF FBN

φEwφFw

Bc

Boundary Dimensions(mm)

Fw Ew Bc

Basic Load Ratings(N) {kgf}

Cr Cor Cr Cor

LimitingSpeeds(min-1)

Oil

Bearing Numbers

Mass(g)

approx-0.2-0.55

Page 42: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 29

NSK NEEDLE BEARINGCAGE & NEEDLE ROLLER ASSEMBLIES

B 28

FWF

FBN

Inscribed Circle

Diameter 75 - 150 mm

75

78

80

85

9095

100

105

110115

120125

130135

145150

818183

85

868688

929393

98103

108

113113

118123

128133

138143

153160

203030

40

203030

302530

3030

30

2730

3035

2535

2538

3043

37 00054 50065 000

76 500

38 00057 00069 000

64 00059 00071 000

70 00069 500

75 500

69 50072 500

78 50092 500

69 50093 500

71 500107 000

89 000149 000

89 500147 000151 000

207 000

94 000160 000166 000

169 000139 000176 000

177 000177 000

201 000

183 000193 000

218 000274 000

192 000284 000

205 000345 000

281 000475 000

3 7505 5506 650

7 850

3 8505 8507 050

6 5006 0507 250

7 1507 100

7 700

7 1007 400

8 0009 450

7 1009 550

7 30010 900

9 05015 200

9 10015 00015 400

21 100

9 60016 30017 000

17 20014 20017 900

18 00018 100

20 500

18 70019 700

22 30028 000

19 60029 000

20 90035 500

28 70048 000

66100135

160

71105145

130125150

160175

185

165185

195235

190255

220275

290505

5 3005 3005 600

5 300

5 0005 0005 000

4 8004 8004 800

4 5004 300

4 000

3 8003 800

3 6003 400

3 4003 200

3 0003 000

2 8002 600

FBN-758120FWF-758130FWF-758330

FWF-788540

FWF-808620FWF-808630FWF-808830

FWF-859230FWF-859325FWF-859330

FWF-909830FWF-9510330

FWF-10010830

FWF-10511327FWF-10511330

FWF-11011830FWF-11512335

FWF-12012825FWF-12513335

FWF-13013825FWF-13514338

FWF-14515330FWF-15016043

φEw φFw

Bc

FWF FBN

φEw φFw

Bc

Boundary Dimensions(mm)

Fw Ew Bc

Basic Load Ratings(N) {kgf}

Cr Cor Cr Cor

LimitingSpeeds(min-1)

Oil

Bearing Numbers

Mass(g)

approx-0.2-0.55

Page 43: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 31

NSK NEEDLE BEARINGCAGE & NEEDLE ROLLER ASSEMBLIES (INCH DESIGN)

B 30

WJ

WJC

WJP

Inscribed Circle

Diameter 9.525 - 44.450 mm

φEw φFw

Bc

WJC, WJP

9.525

12.700

14.288

15.875

19.05020.63822.225

25.400

28.575

31.750

34.925

38.100

41.275

44.450

12.70012.700

15.87515.875

17.462

19.05022.22522.225

25.40026.98828.575

33.33833.338

38.10038.100

41.27541.27541.27541.275

44.45044.450

47.62547.62547.625

57.150

53.97553.97553.975

0.50000.5000

0.62500.6250

0.6875

0.75000.87500.8750

1.00001.06251.1250

1.31251.3125

1.50001.5000

1.62501.62501.62501.6250

1.75001.7500

1.87501.87501.8750

2.2500

2.12502.12502.1250

9.5212.70

12.7015.88

12.70

12.7015.8822.22

25.4022.2225.40

19.0525.40

25.4031.75

19.0525.4031.7538.10

25.4031.75

25.4031.7538.10

42.86

19.0525.4038.10

0.37500.5000

0.50000.6250

0.5000

0.50000.62500.8750

1.00000.87501.0000

0.75001.0000

1.00001.2500

0.75001.00001.25001.5000

1.00001.2500

1.00001.25001.5000

1.6875

0.75001.00001.5000

3 9005 450

6 3508 000

6 900

7 10015 40021 100

26 60024 60029 000

27 80036 500

42 00051 500

33 00044 00053 50063 000

45 50055 500

47 00057 50068 000

96 500

39 00051 50074 500

4 0006 150

8 10010 900

9 350

10 00017 30025 900

36 50033 50042 500

36 00051 500

56 50073 500

42 50061 00079 50098 000

66 00085 500

70 50091 500

113 000

130 000

58 00083 500

134 000

400555

645815

705

7251 5702 150

2 7102 5102 960

2 8303 700

4 3005 250

3 3504 4505 5006 450

4 6505 700

4 8005 8506 900

9 850

4 0005 2507 600

410625

8251 110

955

1 0201 7702 640

3 7503 4504 350

3 7005 250

5 7507 500

4 3506 2508 100

10 000

6 7008 750

7 2009 350

11 500

13 300

5 9508 500

13 700

45 00045 000

34 00034 000

30 000

26 00028 00028 000

22 00020 00020 000

17 00017 000

15 00015 000

14 00014 00014 00014 000

12 00012 000

11 00011 00011 000

11 000

9 5009 5009 500

34

46

6

61318

252128

3543

5872

516173

105

6783

7890

120

205

6284

145

WJC-060806WJC-060808

WJC-081008WJC-081010

WJC-091108

WJC-101208WJ-101410WJ-101414

WJ-121616WJ-131714WJ-141816

WJ-162112WJ-162116

WJ-182416WJ-182420

WJ-202612WJ-202616WJ-202620WJ-202624

WJ-222816WJ-222820

WJ-243016WJ-243020WJ-243024

*WJP-263627

WJ-283412WJ-283416WJ-283424

0.3750

0.5000

0.5625

0.6250

0.75000.81250.8750

1.0000

1.1250

1.2500

1.3750

1.5000

1.6250

1.7500

Boundary Dimensions(mm, inch)

Fw Ew Bc0

-0.38

Basic Load(N)

Cr Cor

Ratings{kgf}

Cr Cor

LimitingSpeeds(min-1)

Oil

Bearing Numbers

Mass(g)

approx

WJ

φEw φFw

Bc

* These bearings have polyamide cages. The maximum permissible operating temperaturefor these bearings is 100°C for continued operation and 120°C for short periods.

Page 44: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 33

NSK NEEDLE BEARINGCAGE & NEEDLE ROLLER ASSEMBLIES (INCH DESIGN)

B 32

WJ

Inscribed Circle Diameter 50.800 - 127.000 mm

50.800

52.388

53.975

55.562

57.15060.325

63.500

69.850

76.200

82.550

88.900

101.600

127.000

60.32560.32560.32560.325

61.912

63.50063.500

65.08865.088

66.67569.850

73.02573.025

79.375

85.72585.725

92.07592.075

98.425101.600101.600

114.300114.300

152.400

2.37502.37502.37502.3750

2.4375

2.50002.5000

2.56252.5625

2.62502.7500

2.87502.8750

3.1250

3.37503.3750

3.62503.6250

3.87504.00004.0000

4.50004.5000

6.0000

19.0525.4031.7538.10

25.40

25.4038.10

19.0525.40

25.4038.10

25.4038.10

25.40

25.4038.10

25.4038.10

25.4025.4038.10

25.4038.10

38.10

0.75001.00001.25001.5000

1.0000

1.00001.5000

0.75001.0000

1.00001.5000

1.00001.5000

1.0000

1.00001.5000

1.00001.5000

1.00001.00001.5000

1.00001.5000

1.5000

42 50056 00068 50081 000

57 500

53 00078 000

44 00058 500

53 50081 000

55 50082 500

57 500

59 00085 000

61 00087 500

62 50079 000

113 000

83 000119 000

211 000

67 50096 500

126 000155 000

101 000

92 000151 000

73 500105 000

94 000165 000

102 000171 000

110 000

118 000189 000

126 000201 000

134 000147 000234 000

163 000259 000

360 000

4 3005 7007 0008 250

5 850

5 4007 950

4 5005 950

5 4508 300

5 6508 450

5 850

6 0508 700

6 2008 950

6 4008 050

11 500

8 45012 100

21 500

6 8509 850

12 80015 800

10 300

9 40015 400

7 50010 700

9 60016 800

10 40017 500

11 200

12 00019 200

12 90020 500

13 70015 00023 800

16 60026 400

36 500

8 5008 5008 5008 500

8 000

8 0008 000

7 5007 500

7 5007 100

6 7006 700

6 000

5 3005 300

5 0005 000

4 5004 5004 500

4 0004 000

3 400

85105125145

99

100150

85105

105185

135180

125

160215

145220

175215360

240370

1 000

WJ-323812

WJ-323816

WJ-323820

WJ-323824

WJ-333916

WJ-344016

WJ-344024

WJ-354112

WJ-354116

WJ-364216

WJ-384424

WJ-404616

WJ-404624

WJ-445016

WJ-485416

WJ-485424

WJ-525816

WJ-525824

WJ-566216

WJ-566416

WJ-566424

WJ-647216

WJ-647224

WJ-809624

2.0000

2.0625

2.1250

2.1875

2.25002.3750

2.5000

2.7500

3.0000

3.2500

3.5000

4.0000

5.0000

WJ

φEw φFw

Bc

Boundary Dimensions(mm, inch)

Fw Ew Bc0

-0.38

Basic Load(N)

Cr Cor

Ratings{kgf}

Cr Cor

LimitingSpeeds(min-1)

Oil

Bearing Numbers

Mass(g)

approx

Page 45: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 35

NSK NEEDLE BEARINGCAGE & NEEDLE ROLLER ASSEMBLIES

B 34

For Large Ends of Connecting Rods

Inscribed Circle Diameter 12 - 30 mm

For Small Ends of Connecting Rods

Inscribed Circle Diameter 9 - 19 mm

1214

1516

1616

1818

1818

1921

202021

21

222222

23

910

12

14

15

16

17

18

19

11.512.7

14.313

15.516

1216.5

1820

1818

2223.520

23

172223.6

23.7

4 2005 900

6 4007 250

8 5008 500

6 9509 250

10 7009 550

11 30012 900

13 70014 90014 200

14 800

11 50014 20015 400

16 000

4 5005 950

8 4008 200

10 00010 000

8 05011 600

14 00012 000

15 30013 900

20 00022 30018 100

22 500

16 50021 60024 100

25 800

430605

655740

865865

710945

1 090975

1 1501 310

1 4001 5201 450

1 510

1 1701 4401 570

1 630

460610

855835

1 0201 020

8201 180

1 4301 230

1 5601 420

2 0402 2801 840

2 290

1 6802 2002 460

2 630

3.55.0

4.86.4

7.07.5

6.58.5

11.513

1113

141516

16

121516

17

FBN-91211Z-EFBN-101412Z-E

FBN-121514Z-EFBN-121613-E

FBN-121615Z-EFBN-121616-E

FBN-141812-EFBN-141816Z-E

FBN-141818-EFBN-141820-E1

FBN-151918-EFBN-152118-E

FBN-162022-EFBN-162023Z-EFBN-162120-E

FBN-172123-E

FBN-182217-EFBN-182222-EFBN-182223Z-E

FBN-192323Z-E

φEw φFw

Bc

FBN…E

161920

192021

2122

2324

262628

282932

31

303031

323536.75

3738

1214

15

16

18

20

22

23

24

252829.75

30

101012

91010

1112

1412

121718

141516

16

151720

161616.5

1618

6 1007 8008 900

5 6507 3007 950

8 6509 500

11 80010 000

12 20016 80018 100

13 90016 30019 700

17 600

15 60017 90021 600

17 70018 40019 600

21 90025 500

6 5008 0508 600

6 2507 6007 500

9 6009 600

14 80010 600

14 10021 20019 400

17 10019 00019 400

19 400

20 30024 30027 800

21 90023 70026 000

30 50034 000

620795910

575745810

880965

1 2001 020

1 2501 7101 840

1 4201 6602 010

1 800

1 5901 8302 200

1 8101 8801 990

2 2302 600

665820880

640775765

980980

1 5101 080

1 4402 1601 970

1 7401 9301 970

1 980

2 0702 4802 840

2 2302 4102 650

3 1003 450

4.06.28.3

4.16.08.5

7.59.5

1011

131725

141931

23

171930

242528

2935

FWF-121610-EFWF-141910-EFWF-142012-E

FWF-15199-EFWF-152010-EFWF-152110-E

FWF-162111-EFWF-162212-E

FWF-182314-EFWF-182412-E

FWF-202612-EFWF-202617-EFWF-202818-E

FWF-222814-EFWF-222915-EFWF-223216-E

FWF-233116-E

FWF-243015-EFWF-243017-EFWF-243120-E

FWF-253216-EFWF-283516-EFWF-293616Z-E

FWF-303716-EFWF-303818-E

Boundary Dimensions(mm)

Fw Ew Bc

Basic Load Ratings(N) {kgf}

Cr Cor Cr Cor

Bearing Numbers

Mass(g)

approx-0.2-0.4

Boundary Dimensions(mm)

Fw Ew Bc

Basic Load Ratings(N) {kgf}

Cr Cor Cr Cor

Bearing Numbers

Mass(g)

approx-0.2-0.4

φEw φFw

Bc

FWF…E

Please consult NSK when making a selection.

Page 46: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 37

NSK NEEDLE BEARING

B 36 B 37

DRAWN CUP NEEDLE ROLLER BEARINGSMETRIC DESIGN

Open Type with Cage and Closed End Type with Cage

Inscribed Circle Diameter 10-55 mm ................................ B46-B53

Sealed Type with Cage Inscribed Circle Diameter 8-50 mm ................................ B54-B57

Thin, Open Type with Cage Inscribed Circle Diameter 18-82 mm ................................ B58-B59

Full Complement Open Type and Full Complement Closed End Type

Inscribed Circle Diameter 8-55 mm ................................ B60-B63

INCH DESIGN

Open Type with Cage and Closed End Type with Cage

Inscribed Circle Diameter 9.525-50.800 mm .................. B64-B67

Full Complement Open Type and Full Complement Closed End Type

Inscribed Circle Diameter 11.112-50.800 mm .................. B68-B75

Full Complement and Grease-Retained Roller Type

Inscribed Circle Diameter 3.969-47.625 mm .................. B76-B79

EXTRA SMALL・MINIATURE

Metric Design Open Type with Cage and Closed End Type with Cage

Inscribed Circle Diameter 3-9 mm .................................... B80-B81

Full Complement Metric Design Open Type and Full Complement Closed End Type

Inscribed Circle Diameter 3.036-9 mm ............................. B82-B83

Inch Design Open Type with Cage and Closed End Type with Cage

Inscribed Circle Diameter 3.175-9.525 mm ...................... B84-B85

Inch Design Full Complement Open Type and Full Complement Closed End Type

Inscribed Circle Diameter 3.175-9.525 mm ...................... B86-B87

NSK drawn cup needle roller bearings (with a cage and full complement ofrollers) have a unique outer ring structure. They have the following features: thethinnest outer ring among rolling bearings, high load capacity, high maximumpermissive load owing to the use of carefully selected special alloy steel plates, asurface-hardened cage with high resistance to wear, high limiting speed, and easeof mounting.

DESIGN AND TYPES

NSK drawn cup needle roller bearings consist of an outer ring made of carefullyselected alloy steel that is surface-hardened after precise pressing, rollers made ofvacuum-degassed bearing steel that are given a grinding finish after through-hardening, and a cage that guides the rollers correctly on the pitch diameter.

The bent lip of the drawn cup, which is the outer ring, improves rigidity, holds therollers and cage in place, and functions as a labyrinth seal to prevent foreign matterfrom entering and lubrication from leaking. The inside of the outer ring's bending partis hardened, and has sufficient wear resistance against the contact of the roller orcage.

Pages

Page 47: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

DRAWN CUP NEEDLE ROLLER BEARINGS

B 38 B 39

INTERNAL CLEARANCE

The radial internal clearance when a drawn cup needle bearing is mounted in ahousing varies depending on the bearing, shaft and housing bore tolerances.Therefore, the tolerances for the shaft and housing bore should be narrower whenreducing the range of radial internal clearance.

When the dimensional tolerance for each part is as shown in Fig. 1 (Example of F-

3020-1), the radial internal clearance ranges from 0.015 to 0.074 mm.

APPLICATION

Shaft and housing specifications

For drawn cup needle bearings, the shaft is generally used as a substitute for theinner ring. Since the outer ring of drawn cup needle bearings is made of a thin steelplate, the correct shape and dimensional accuracy are achieved after press fitting theregular housing. The dimensional accuracy and hardness of the shaft and housingbore directly affect bearing performance. Therefore, the following specificationsshould be satisfied.

(1) Accuracy, Roughness and Hardness

Accuracy, roughness and hardness of the shaft and housing bore should satisfy thespecifications shown in Table 2.

(2) Shaft Inclination

Shaft inclination due to deflection by external force and mounting error of thebearing should be within the values found in Table 3.

NSK NEEDLE BEARING

The bearing numbers of NSK drawn cup bearings are shown incombination with bearing codes and dimension numbers.

The bearing codes are shown in Table 1.

(Example) FJ-1612-OH

Special Specifications

The bearing is manufactured in accordance with special specifications dependingon operating conditions. In this case, the code is indicated with the bearing numberfollowed by a hyphen and a letter or alphanumeric combination.

(Example) OH .... outer ring with oil hole

ACCURACY

Although standard drawn cup needle bearings perform well for general use,higher-accuracy drawn cup needle bearings are sometimes required such as whendispersion of radial internal clearance needs to be sharply decreased, when eccentriceffects should be minimized, or when using only a few bearings to share the loadevenly. However, standard bearings are still sufficient for almost all other occasions.Considering the higher cost of high-accuracy bearings, please consult NSK whenselecting such bearings.

MetricThe first one or two digits indicate the shaft’sdimensions, and the following digits indicate the width,both expressed in mm units.

The first one or two digits indicate the shaft’sdimensions, and the following digits indicate the width,both expressed in units of 1/16 of an inch. With closedends, the number "1" is added following the dimensionnumber.

Inch

The dimension number has the following meaning:

Items

StandardSeries

Metric FJ, FJP MFJ F, NF, DD MF, MNF

J, JP MJ B, Y M

FJL, FJH MFJL, MFJH FH, NFH MFH

JH MJH BH, YH MH

Inch

Metric

Inch

High LoadSeries

With Cage Assembly

Open Closed End Closed EndOpen

Full Complement

Table 1 Bearing Codes

Special Specification Code

CodeFJ means a metric open-type bearing with a cage.

Width Dimension } Dimension NumberShaft Dimension

Fig. 1 Radial Internal Clearance

Bearing Inscribed Circle Diameter(when pressing into ring gauge of φ36.972)

φ30+0.041+0.020

Shaft Diameter

φ30 h6 0-0.013Housing Bore Diameter

φ37 N7 -0.008-0.033

Radial Clearance0.015 to 0.074 mmSquare Mean Value0.027 to 0.062 mm

Category Shaft Housing Bore

Out-of-RoundnessTolerance

IT3――2IT4 IT5―― to ――2 2

IT3――2IT4 IT5―― to ――2 2

0.4

HRC58 to 64 (HRC60 to 64is favorable) Proper depth ofhardening layer required

1.6

Cylindricity Tolerance

Roughness, Ra

Hardness

Remarks For details, refer to Section 5.2 on page A34 and Section 5.3 on page A35.

Table 2 Accuracy, Roughness, and Hardness

Page 48: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 41

MOUNTING

When an drawn cup needle roller bearing is pressed into a housing bore, it isnecessary to use an appropriate jig to prevent deformation of and damage to theouter ring, as shown in Fig. 2. The following precautions apply when mounting:(1) The marked-side face should be placed onto the shoulder of the jig.(2) A hand press should be used for press fitting. Avoid using a hammer or other

such instruments. (3) No snap ring or shoulder to determine the position of the bearing is necessary.

However, when using a housing with a shoulder, the bearing side face should nottouch the shoulder, in order to prevent bearing deformation.

(4) The guide and locaing stopper (Fig. 2) are installed in order to apply pressfitting accurately. The ball detent shown in Fig. 2 helps the jig hold the bearingand prevent roller inclination while facilitating mounting work.

Inspection of Drawn Cup Needle Bearings

Deformation to a certain degree due to heat treatment is inevitable even though theouter ring of drawn cup needle bearings is processed by precise deep drawing.However, once the bearing is pressed into the regular housing, this deformation iscorrected and the bearing performs to the full potential. Therefore, it is notappropriate to measure the drawn cup outside diameter before mounting. Correctinspection is carried out according to following procedures:(1) The bearing that is to be subject to the test is pressed into a ring gauge of given

dimensions.(2) The inscribed circle diameter at the GO and NO-GO plug gauges is inspected.

Metric inspection gauge dimensions are shown in Table 5.Table 6 shows tolerance for the roller inscribed circle diameter based on ISO

standards.For bearings based on ISO standards, "-1" is added at the end of the bearing

number. Table 7 shows inch inspection gauge dimensions.

NSK NEEDLE BEARINGDRAWN CUP NEEDLE ROLLER BEARINGS

B 40

(3) Housing Rigidity

To maintain the accuracy of drawn cup needle bearings, it is necessary to designthe housing thick enough to minimize deformation when load is applied.

Split housings can only be used with drawn cup needle bearings after press fittingthe bearing into a cylindrical sleeve.

FITTINGDrawn cup needle bearings perform as designed only after proper fitting. It is

necessary to use the fitting tolerances shown in Table 4 for the shaft and housing bore.The figures in Table 4 are for fits when housing materials are rigid steel or cast iron.The fit should be adjusted as follows in accordance with operating conditions:

(1) Oscillating motion

In order to reduce radial internal clearance, the shaft's fitting tolerance should bejs6 ( j 6).

(2) Outer ring rotation

For metric bearings, the fitting tolerances of the shaft and housing bore should bef6 and R7, respectively.

For inch bearings, 0.013 mm should be reduced from both fitting tolerances ofshaft and housing bore.

(3) The housing is made from light alloy or steel with a thickness of less than

6 mm.

The fitting tolerances of housing bore should be minimized to approximately 0.013to 0.025 mm, provided that the optimized value should be determined by mountinginto the actual housing because the value may vary depending on housing materialand shape. Please contact NSK for details.

Locating Stopper

Marked Side of BearingRecommended Jig DimensionsA = Housing Bore Diameter -0.4 mmB = Shaft Diameter -0.08 mmC = 0.25 mm (Min.)D = Bearing Width -0.8 mmE = Approximatery 1/2 D

Table 3 Permissible Shaft Inclination

Bearing Width (mm)

over

25

50

25

50

0.0015

0.0010

0.0005

0.0010

0.0005

0.0005

incl With Cage Full Complement

Permissible Inclination (mm/mm)

CategoryFitting Tolerance

Shaft

h6

h6

N7

J7

Nominal OutsideDiameter D, mm

over

7.144( 9/32)

8.731(11/32)

7.144( 9/32)

8.731(11/32)

+0.013

0

0

+0.013

incl high low

Tolerance, mm

h6

Housing Bore

MetricF, FJ

FJL

B, BH,

J, JH,

Y, YH

Inch

J7 J7

Table 4 Recommended Fits

Fig. 2 Example of Jig

Page 49: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 43

NSK NEEDLE BEARINGDRAWN CUP NEEDLE ROLLER BEARINGS

B 42

45678

91012

FH1213

14NF14

151617

182022

NFH2224

NFH2425283032

3540455055

7.9968.9969.996

10.99511.995

12.99513.99515.99517.99518.993

19.99318.99320.99321.99322.972

23.97225.97227.97230.987―

31.96731.96734.96736.967―

41.96746.96751.96157.96162.961

4.0235.0236.0287.0318.031

9.03110.03112.03112.03113.034

14.03414.03415.03416.03417.013

18.01320.01322.01324.01524.013

24.01325.01328.01330.01332.013

35.01340.01345.01350.01355.013

4.0485.0486.0537.0568.056

9.05610.05612.05612.05613.059

14.05914.05915.05916.05917.038

18.03820.03822.03824.03524.038

24.03825.03828.03830.03832.038

35.04340.04345.04350.04355.043

――――

15.010

16.01017.01019.012――

22.012―

22.01224.01223.991

24.99126.99128.991―

30.989

―32.98936.98939.98941.989

44.98949.98954.98861.98866.988

Plug GaugeBore Diameter of Ring Gauge

GO Gauge NO-GO GaugeF,MF,FH,MFH,NF,MNF,NFH,FJ,MFJ

FJL, MFJL

Remarks This is the gauge dimension for inspection of minimum diameter, Fw, of roller inscribedcircle diameter.

Nominal RollerInscribed Circle

Diameter, Fw

Table 5 Inspection Gauge Dimensions (General Metric)Units: mm

Note (1) When using a cylinder instead of an inner ring, Fw min is thediameter of the cylinder at which the internal clearance is zero in atleast one radial direction. (Fw min is the minimum diameter of eachinscribed circle diameter where deviation is suspected.)

Remarks To measure the roller inscribed circle diameter, use the followungplug gauges:GO gauge: The same dimensions as the minimum tolerance of theroller inscribed circle diameter, Fw

NO-GO gauge: The dimensions should be the maximum toleranceof roller inscribed circle diameter, Fw, plus 0.002 mm

Units: mm

34567

8H 8

9H 910

H1012

H121314

1516171820

2225283035

40455055

6.4847.9848.9849.984

10.980

11.98013.98012.98014.98013.980

15.98015.98017.98018.97619.976

20.97621.97622.97623.97625.976

27.97631.97234.97236.97241.972

46.97251.96757.96762.967

3.0074.0105.0106.0107.013

8.0138.0139.0139.013

10.013

10.01312.01612.01613.01614.016

15.01616.01617.01618.01620.020

22.02025.02028.02030.02035.025

40.02545.02550.02555.030

3.0214.0285.0286.0287.031

8.0318.0319.0319.031

10.031

10.03112.03412.03413.03414.034

15.03416.03417.03418.03420.041

22.04125.04128.04130.04135.050

40.05045.05050.05055.060

Nominal RollerInscribed Circle

Diameter, Fw

Bore Diameterof Ring Gauge

Tolerance for Roller InscribedCircle Diameter, Fw(1)

min max

Table 6 Ring Gauge of Drawn Cup Needle Roller Bearings

and Tolerance of Roller Inscribed Circle Diameter (ISO Standerds)

FJ, FJH, MFJ and MFJH

F, FH, MF and MFH[ ]

Page 50: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 45

Drawn Cup Needle Bearings with Seals

Drawn cup needle roller-bearing with seals can be sealed on one or both sides.The bearings are packed with lithium soap-based grease and can be operatedunder regular conditions in normal operating ranges for long periods withoutreplenishment. The seale made of nitrile synthetic rubber reinforced with a steelplate and serves as a guide for the side face of the cage. The operatingtemperature range is limited because of the rubber seal, ranging from -10°C to+100°C for continuous use from -25°C to +120°C for short periods of use.

The various types of drawn cup needle bearings with seals are shown inTable 8.

NSK NEEDLE BEARINGDRAWN CUP NEEDLE ROLLER BEARINGS

B 44

6.3637.1558.730

11.12512.713

14.30015.88817.47519.06320.650

22.23825.38726.97528.56230.150

31.73733.32534.91238.08738.087

41.26241.26247.61250.78753.962

57.13760.312

14.30015.88817.47519.06320.650

22.23823.82526.97528.56230.150

33.32538.08741.26244.437

3.175( 1/8 )3.969( 5/32 )4.762( 3/16 )6.350( 1/4 )7.938( 5/16 )

9.525( 3/8 )11.112( 7/16 )12.700( 1/2 )14.288( 9/16 )15.875( 5/8 )

17.462( 11/16 )19.050( 3/4 )20.638( 13/16 )22.225( 7/8 )23.812( 15/16 )

25.400( 1 )26.988(1 1/16)28.575(1 1/8)30.162(1 3/16)31.750(1 1/4)

33.338(1 5/16)34.925(1 3/8)38.100(1 1/2)41.275(1 5/8)44.450(1 3/4)

47.625(1 7/8)50.800( 2 )

7.938( 5/16 )9.525( 3/8 )

11.112( 7/16 )12.700( 1/2 )14.288( 9/16 )

15.875( 5/8 )17.462( 11/16 )19.050( 3/4 )20.638( 13/16 )22.225( 7/8 )

25.400( 1 )28.575(1 1/8)31.750(1 1/4)34.925(1 3/8)

3.1953.9904.7836.3887.976

9.56311.15112.73814.32615.913

17.50119.06320.65022.23823.825

25.41327.00028.58830.17531.763

33.35034.93838.11341.28844.463

47.63850.815

7.9769.563

11.15112.73814.326

15.91317.50119.06320.65022.238

25.41328.58831.76334.938

3.2204.0154.8086.4138.001

9.58811.17612.76314.35115.938

17.52619.08820.67522.26323.850

25.43827.02528.61330.20031.788

33.37834.96638.14341.31844.496

47.67150.848

8.0019.588

11.17612.76314.351

15.93817.52619.08820.67522.263

25.43828.61331.78834.966

Plug GaugeBore Diameter ofRing Gauge

Nominal Roller InscribedCircle Diameter, Fw GO Gauge NO-GO Gauge

Plug GaugeBore Diameter ofRing Gauge

Nominal Roller InscribedCircle Diameter, Fw GO Gauge NO-GO Gauge

Units: mm

Units: mm

BH, MH, JH, MJH and YH

B, M, J, MJ, Y and JP

Table 7 Inspection Gauge Dimensional Table (Inch)

Code Description

Drawn cup with seal on one side

Drawn cup with seals on both sides

Closed end, drawn cup with seal on one side

FJT, FJLT, FJHT

FJTT, FJLTT, FJHTT

MFJT, MFJLT, MFJHT

Table 8 Types of Drawn Cup Needle Roller Bearings with Seals

Page 51: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 47

NSK NEEDLE BEARINGDRAWN CUP NEEDLE ROLLER BEARINGS

B 46

With Cage

FJ ● FJH (Open Type)

FJL

MFJ ● MFJH (Closed Type)

MFJL

Inscribed Circle Diameter 10 - 16 mm

141416

17171717

161819

191919

19

20202222

212121

222222

2222

2222

2424

101510

10121520

101212

152025

12

12161620

101216

101215

2025

1216

1620

3 5005 5504 900

4 9005 7007 850

11 200

4 1506 4506 650

9 20013 00016 600

6 950

6 5009 500

11 60015 100

5 8507 650

11 000

6 4507 450

10 300

14 70018 700

7 10010 400

13 10017 100

360570500

500580800

1 140

420655675

9351 3301 690

710

665970

1 1801 540

595780

1 120

655760

1 050

1 5001 900

7251 060

1 3301 740

1 7603 1502 100

1 9902 4103 6505 750

2 2103 0502 950

4 5007 0009 550

3 400

3 2505 3005 7008 050

2 7703 9006 200

2 8803 5005 300

8 30011 300

3 7506 050

6 7009 500

32 00032 00034 000

36 00036 00036 00036 000

26 00028 00028 000

28 00028 00028 000

26 000

24 00024 00024 00024 000

22 00022 00022 000

22 00022 00022 000

22 00022 000

20 00020 000

20 00020 000

FJ-1010FJ-1015LFJH-1010

FJ-1210FJH-1212

FJ-1312

FJ-1412FJ-1416

FJ-1510FJ-1512FJ-1516

FJ-1612FJ-1616

FIR-071010FIR-071015FIR-071010

FIR-071010FIR-071012FIR-071015

FIR-081210FIR-081212FIR-081212

FIR-081215――

FIR-101312

FIR-101412FIR-101416FIR-101416FIR-101420

FIR-101510FIR-101512FIR-121516

FIR-101510FIR-101512FIR-101515

FIR-101520FIR-101525

FIR-121612FIR-121616

FIR-121616FIR-121620

―――

――――

―――

―――

――――

―FIR-121512

―FIR-121512

――

――

――

FJL-1010FJL-1012LFJL-1015FJL-1020

FJL-1212L

FJL-1215FJL-1220FJL-1225L

FJL-1416FJL-1420L

FJL-1510LFJL-1512LFJL-1515

FJL-1520FJL-1525L

FJL-1616LFJL-1620L

MFJ-1010―

MFJH-1010

MFJ-1210MFJH-1212

MFJ-1312

MFJ-1412MFJ-1416

―MFJ-1512MFJ-1516

MFJ-1612MFJ-1616

MFJL-1010MFJL-1012LMFJL-1015MFJL-1020

MFJL-1212L

MFJL-1215MFJL-1220MFJL-1225L

MFJL-1416LMFJL-1420L

MFJL-1510LMFJL-1512LMFJL-1515

MFJL-1520MFJL-1525L

MFJL-1616LMFJL-1620L

179325214

203246375585

225310300

455715975

345

335540580820

283400635

294355540

8451 150

380620

685970

3.65.46.1

7.08.4

1114

4.17.79.8

121620

8.6

10131721

8.11013

9.81214

2024

1114

1924

4.1―6.6

7.89.3

1216

4.59.0

11

141924

9.5

11141924

―1114

111316

2227

1215

2127

0.8―1.0

1.01.01.01.0

0.81.01.0

1.01.01.0

1.0

1.01.01.11.1

―1.01.0

1.01.01.0

1.01.0

1.01.0

1.11.1

10

12

13

14

15

16

Boundary Dimensions(mm)

Fw D C C2

max

Basic DynamicLoad Ratings

(N) {kgf}

Cr

Limiting Loads(N) {kgf}

Pmax

LimitingSpeeds(min-1)

Oil

Bearing Numbers

Open ClosedFJ FJL MFJ MFJLFJH MFJH

Mass(g)

approxOpen Closed

Matching Inner Rings

0-0.25

φD φFw

C

φD φFw

C

Closed TypeOpen Type

C2

Page 52: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 49

NSK NEEDLE BEARINGDRAWN CUP NEEDLE ROLLER BEARINGS

B 48

With Cage

FJ (Open Type)

FJL

MFJ (Closed Type)

MFJL

Inscribed Circle Diameter 17 - 25 mm

232324

2424

242425

25252525

262626

27272727

282828

292929

2929

323232

333333

3333

121615

2025

121613

15172025

121620

15202530

121620

101520

2530

162026

101520

2530

8 45012 10010 800

15 40019 600

7 65011 200

9 300

11 40013 30016 10020 500

8 15011 90015 300

12 30017 50022 30026 800

8 65012 60016 200

7 95012 70018 100

23 00027 700

15 20019 80026 200

8 80015 40021 900

28 00033 500

8601 2301 110

1 5702 000

7801 140

945

1 1601 3601 6402 090

8351 2101 560

1 2601 7902 2702 730

8801 2901 660

8101 3001 840

2 3502 820

1 5502 0202 670

8951 5702 240

2 8503 450

4 4507 1005 700

8 95012 200

4 2006 8004 700

6 1007 5009 600

13 100

4 6507 550

10 500

6 90010 90014 80018 700

5 1508 350

11 500

4 0007 300

11 500

15 70019 800

9 35013 10018 800

4 3008 800

13 900

19 00024 100

19 00019 00020 000

20 00020 000

18 00018 00018 000

18 00018 00018 00018 000

16 00016 00016 000

16 00016 00016 00016 000

14 00014 00014 000

15 00015 00015 000

15 00015 000

13 00013 00013 000

13 00013 00013 000

13 00013 000

FJ-1712FJ-1716

FJ-1812FJ-1816

FJ-2012FJ-2016FJ-2020

FJ-2212FJ-2216FJ-2220

FJ-2516FJ-2520FJ-2526

――

FIR-121715

FIR-121720FIR-121725

FIR-151812FIR-151816

FIR-151815―

FIR-151820FIR-151825

FIR-172012FIR-172016FIR-152020

FIR-152015FIR-152020FIR-152025FIR-152030

FIR-172212FIR-172216FIR-172220

FIR-172210FIR-172215FIR-172220

FIR-172225FIR-172230

FIR-202516FIR-202520FIR-202526

FIR-202510FIR-202515FIR-202520

FIR-202525FIR-202530

―――

――

―――

――――

――

FIR-172020

―FIR-172020

――

―――

―――

――

―――

―――

――

FJL-1715

FJL-1720LFJL-1725L

FJL-1813

FJL-1815FJL-1817LFJL-1820LFJL-1825

FJL-2015LFJL-2020FJL-2025LFJL-2030L

FJL-2210LFJL-2215LFJL-2220L

FJL-2225LFJL-2230L

FJL-2510FJL-2515FJL-2520

FJL-2525LFJL-2530

MFJ-1712MFJ-1716

MFJ-1812MFJ-1816

MFJ-2012MFJ-2016MFJ-2020

MFJ-2212MFJ-2216MFJ-2220

MFJ-2516MFJ-2520MFJ-2526

MFJL-1715

MFJL-1720LMFJL-1725L

MFJL-1813

MFJL-1815MFJL-1817LMFJL-1820LMFJL-1825

MFJL-2015MFJL-2020MFJL-2025LMFJL-2030L

MFJL-2210LMFJL-2215LMFJL-2220L

MFJL-2225LMFJL-2230L

MFJL-2510MFJL-2515LMFJL-2520

MFJL-2525LMFJL-2530

455720580

9101 240

430695480

620765975

1 330

475770

1 070

7051 1101 5101 910

525850

1 180

405745

1 170

1 6002 020

9551 3401 920

435895

1 420

1 9402 460

101416

2127

121614

17202228

131722

19243037

141923

132027

3340

243140

172635

4352

111618

2430

141816

19222531

151924

21273341

172226

152230

3744

273443

192939

4858

1.01.01.0

1.01.0

1.01.01.0

1.01.01.01.0

1.01.01.0

1.01.01.01.0

1.01.01.0

1.01.01.0

1.01.0

1.01.01.0

1.01.01.0

1.01.0

17

18

20

22

25

φD φFw

C

Closed TypeOpen Type

C2

φD φFw

C

Boundary Dimensions(mm)

Fw D C C2

max

Basic DynamicLoad Ratings

(N) {kgf}

Cr

Limiting Loads(N) {kgf}

Pmax

LimitingSpeeds(min-1)

Oil

Bearing Numbers

Open Closed

FJ FJL MFJ MFJL

Mass(g)

approxOpen Closed

Matching Inner Rings

0-0.25

Page 53: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 51

NSK NEEDLE BEARINGDRAWN CUP NEEDLE ROLLER BEARINGS

B 50

With Cage

FJ (Open Type)

FJL

MFJ (Closed Type)

MFJL

Inscribed Circle Diameter 28 - 40 mm

353535

3737

373737

40404040

4242

424242

424545

454545

474747

50505050

162026

2030

162026

15202530

2030

121620

261215

202530

162026

15202530

15 60020 50026 900

25 40039 000

15 60019 40026 000

17 20025 80033 50041 000

26 70042 500

12 00018 10023 600

31 50013 20018 200

27 40036 00043 500

18 60023 50031 500

19 90029 90039 00047 500

1 5902 0902 750

2 5904 000

1 5901 9702 660

1 7502 6303 4504 200

2 7204 300

1 2301 8502 410

3 2001 3501 860

2 7903 6504 450

1 8902 4003 200

2 0303 0503 9504 850

9 95014 20020 200

15 50027 100

10 10013 30019 500

9 10015 30021 60027 800

16 20029 400

7 55012 80017 900

25 8006 650

10 100

17 00024 00031 000

13 60018 50026 900

11 60019 60027 60035 500

11 00011 00011 000

11 00011 000

10 00010 00010 000

11 00011 00011 00011 000

10 00010 000

9 0009 0009 000

9 0009 0009 000

9 0009 0009 000

7 5007 5007 500

8 0008 0008 0008 000

FJ-2816FJ-2820FJ-2826

FJ-3016LFJ-3020FJ-3026

FJ-3512FJ-3516FJ-3520

FJ-3526

FJ-4016FJ-4020FJ-4026

FIR-222816FIR-222820FIR-222826

FIR-222820FIR-222830

―FIR-253020FIR-253026

FIR-253015FIR-253020FIR-253025FIR-253030

FIR-283220FIR-283230

FIR-303512―

FIR-303520

FIR-303526FIR-303512FIR-303515

FIR-303520FIR-303525FIR-303530

―FIR-354020FIR-354026

FIR-354015FIR-354020FIR-354025FIR-354030

―――

――

―――

――――

――

―――

―――

―――

―――

――――

FJL-2820LFJL-2830L

FJL-3015LFJL-3020LFJL-3025LFJL-3030L

FJL-3220FJL-3230

FJL-3512FJL-3515

FJL-3520LFJL-3525LFJL-3530L

FJL-4015LFJL-4020LFJL-4025LFJL-4030L

MFJ-2816MFJ-2820MFJ-2826

MFJ-3016LMFJ-3020MFJ-3026

MFJ-3512MFJ-3516MFJ-3520

MFJ-3526

MFJ-4016MFJ-4020MFJ-4026

MFJL-2820LMFJL-2830L

MFJL-3015LMFJL-3020LMFJL-3025LMFJL-3030L

MFJL-3220MFJL-3230

MFJL-3512MFJL-3515

MFJL-3520LMFJL-3525LMFJL-3530L

MFJL-4015LMFJL-4020LMFJL-4025LMFJL-4030L

1 0201 4502 060

1 5802 760

1 0301 3601 990

9251 5602 2002 840

1 6503 000

7701 3001 830

2 630680

1 030

1 7402 4503 150

1 3901 8902 740

1 1802 0002 8103 650

273445

4465

263546

49526578

5582

24.33241

543644

607490

344660

506784

100

313849

4872

313950

55587286

6291

303845

584049

6782

100

435165

557493

110

1.01.01.0

1.01.0

1.01.01.0

1.31.31.31.3

1.31.3

1.01.01.0

1.01.31.3

1.31.31.3

1.01.01.0

1.31.31.31.3

28

30

32

35

40

φD φFw

C

Closed TypeOpen Type

C2

φD φFw

C

Boundary Dimensions(mm)

Fw D C C2

max

Basic DynamicLoad Ratings

(N) {kgf}

Cr

Limiting Loads(N) {kgf}

Pmax

LimitingSpeeds(min-1)

Oil

Bearing Numbers

Open Closed

FJ FJL MFJ MFJL

Mass(g)

approxOpen Closed

Matching Inner Rings

0-0.25

Page 54: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 53

NSK NEEDLE BEARINGDRAWN CUP NEEDLE ROLLER BEARINGS

B 52

With Cage

FJ (Open Type)

FJL

MFJ (Closed Type)

MFJL

Inscribed Circle Diameter 45 - 55 mm

525252

555555

585862

62626262

63636767

162026

202530

202412

15202530

20243040

19 90025 50034 000

31 00040 50049 500

28 90036 00021 200

24 20037 00048 50059 500

30 00037 50062 50081 500

2 0302 6003 450

3 2004 1505 050

2 9403 7002 160

2 4703 8004 9506 050

3 1003 8506 3508 350

15 40021 20030 500

21 30030 00038 500

23 10030 50011 600

13 80023 70033 50043 500

25 10033 50047 50067 000

6 7006 7006 700

7 1007 1007 100

6 3006 3006 300

6 3006 3006 3006 300

5 6005 6005 6005 600

FJ-4516FJ-4520FJ-4526

FJ-5020LFJ-5024

FJ-5520FJ-5524

―FIR-404520FIR-404526

FIR-404520FIR-404525FIR-404530

FIR-455020―

FIR-455012

FIR-455015FIR-455020FIR-455025FIR-455030

――――

―――

―――

―――

――――

――――

FJL-4520LFJL-4525LFJL-4530L

FJL-5012L

FJL-5015LFJL-5020LFJL-5025LFJL-5030L

FJL-5530LFJL-5540L

MFJ-4516MFJ-4520MFJ-4526

MFJ-5020MFJ-5024

MFJ-5520MFJ-5524

MFJL-4520LMFJL-4525LMFJL-4530L

MFJL-5012L

MFJL-5015LMFJL-5020LMFJL-5025LMFJL-5030L

MFJL-5530LMFJL-5540L

1 5702 1603 100

2 1703 0503 950

2 3503 1501 180

1 4002 4203 4504 450

2 5603 4004 8506 850

395368

7494

110

566960

75100125150

6072

155195

505974

82105125

718466

83110140165

7990

180220

1.01.01.0

1.31.31.3

1.11.11.3

1.31.31.31.3

1.11.11.31.3

45

50

55

φD φFw

C

φD φFw

C

Closed TypeOpen Type

C2

Boundary Dimensions(mm)

Fw D C C2

max

Basic DynamicLoad Ratings

(N) {kgf}

Cr

Limiting Loads(N) {kgf}

Pmax

LimitingSpeeds(min-1)

Oil

Bearing Numbers

Open Closed

FJ FJL MFJ MFJL

Mass(g)

approxOpen Closed

Matching Inner Rings

0-0.25

Page 55: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 55

NSK NEEDLE BEARINGDRAWN CUP NEEDLE ROLLER BEARINGS

B 54

Sealed Type With Cage

FJT (Open Type ● One-Side

)Sealed Type

FJHT

FJLT

FJTT (Open Type ● Both-Side

)Sealed Type

FJHTT

FJLTT

MFJT (Closed Type ● Sealed Type)

MFJLT

Inscribed Circle

Diameter 8 - 22 mm

1215

1417

161819

2022

212222

222224

24

242525

26262727

28282929

1212

1212

121414

1419

141318

141823

18

141820

14181823

14181823

1414

1414

141616

1622

161621

162026

21

162123

16202126

16202126

0.81.0

0.81.0

0.81.01.0

1.01.1

1.01.01.0

1.01.01.1

1.0

1.01.01.0

1.01.01.01.0

1.01.01.01.0

2 8404 400

3 5004 900

4 1506 4506 650

6 50011 600

7 6506 450

10 300

7 10010 40017 100

10 800

7 65011 40013 300

8 15011 90012 30017 500

8 65012 60012 70018 100

289450

360500

420655675

6651 180

780655

1 050

7251 0601 740

1 110

7801 1601 360

8351 2101 2601 790

8801 2901 3001 840

1 2701 770

1 7601 990

2 2103 0502 950

3 2505 700

3 9002 8805 300

3 7506 0509 500

5 700

4 2006 1007 500

4 6507 5506 900

10 900

5 1508 3507 300

11 500

22 00022 000

19 00019 000

15 00015 00015 000

13 00013 000

12 00012 00012 000

11 00011 00011 000

11 000

10 00010 00010 000

9 5009 5009 5009 500

8 5008 5008 5008 500

3.16.4

4.17.5

5.18.7

11

1118

111115

121525

17

131821

14182025

16212229

3.56.8

4.68.0

6.19.7

12

1319

121216

131616

18

151922

17212227

18232430

3.67.0

4.68.3

5.59.2

12

1220

121217

131628

19

152022

16202228

19242432

FJT-812

FJT-1012

FJT-1212FJHT-1214

FJT-1414

FJT-1514

FJT-1614FJT-1618

FJT-1814

FJT-2014FJT-2018

FJT-2214FJT-2218

FJTT-814

FJTT-1014

FJTT-1214FJHTT-1216

FJTT-1416

FJTT-1516

FJTT-1616FJTT-1620

FJTT-1816

FJTT-2016FJTT-2020

FJTT-2216FJTT-2220

MFJT-812

MFJT-1012

MFJT-1212MFJHT-1214

MFJT-1414

MFJT-1514

MFJT-1614MFJT-1618

MFJT-1814

MFJT-2014MFJT-2018

MFJT-2214MFJT-2218

FJLT-812

FJLT-1012

FJLT-1214

FJLT-1419

FJLT-1513FJLT-1518

FJLT-1623

FJLT-1718

FJLT-1818FJLT-1820

FJLT-2018FJLT-2023

FJLT-2218FJLT-2223

FJLTT-814

FJLTT-1014

FJLTT-1216

FJLTT-1422

FJLTT-1516FJLTT-1521

FJLTT-1626

FJLTT-1721

FJLTT-1821FJLTT-1823

FJLTT-2021FJLTT-2026

FJLTT-2221FJLTT-2226

MFJLT-812

MFJLT-1012

MFJLT-1214

MFJLT-1419

MFJLT-1513MFJLT-1518

MFJLT-1623

MFJLT-1718

MFJLT-1818MFJLT-1820

MFJLT-2018MFJLT-2023

MFJLT-2218MFJLT-2223

130181

179203

225310300

335580

400294540

380620970

580

430620765

475770705

1 110

525850745

1 170

8

10

12

14

15

16

17

18

20

22

Boundary Dimensions(mm)

Fw D C3 C4 C2max

Basic DynamicLoad Ratings(N) {kgf}

Cr

Limiting Loads(N) {kgf}

Pmax

LimitingSpeeds(1)

(min-1)

Bearing

OpenFJT FJTTFJHT FJHTT

Numbers

Closed Open ClosedMFJT FJLT FJLTT MFJLT

Mass (g)approx

FJT FJTT MFJTFJHT FJLTT MFJLTFJLT FJHTT0

-0.250

-0.25

φD φFw

C3

Closed TypeOpen Type

C2

FJTT, FJHTT, FJLTTFJT, FJHT, FJLT

φD φFw

C3

φD φFw

C4

Note (1) This is the value when the speed at the seal contact surface is 10 m/sec under inner ring rotation. Under outer ring rotation, the limiting speed is half this value.

Remarks Standard grease is packed in the sealed drawn cup needle roller bearings unless otherwise specified.

Page 56: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 57

NSK NEEDLE BEARINGDRAWN CUP NEEDLE ROLLER BEARINGS

B 56

Sealed Type With Cage

FJT (Open Type ● One-Side

)Sealed Type

FJLT

FJTT (Open Type ● Both-Side

)Sealed Type

FJLTT

MFJT (Closed Type ● Sealed Type)

MFJLT

Inscribed Circle

Diameter 25 - 50 mm

φD φFw

Closed TypeOpen Type

C2

FJTT, FJLTTFJT, FJLT

φD φFw

C3

φD φFw

C4 C3

323333

3537

374040

424545

475050

5255

62

181823

1823

222328

221828

221828

2223

28

202126

2026

242631

242131

242131

2426

31

1.01.11.1

1.01.0

1.01.31.3

1.01.31.3

1.01.31.3

1.01.3

1.3

15 20015 40021 900

15 60025 400

19 40025 80033 500

23 60018 20036 000

23 50019 90039 000

25 50031 000

48 500

1 5501 5702 240

1 5902 590

1 9702 6303 450

2 4101 8603 650

2 4002 0303 950

2 6003 200

4 950

9 3508 800

13 900

9 95015 500

13 30015 30021 600

17 90010 10024 000

18 50011 60027 600

21 20021 300

33 500

7 5007 5007 500

6 7006 700

6 3006 3006 300

5 3005 3005 300

4 5004 5004 500

4 0004 000

3 800

282837

2946

405568

464777

525488

6178

130

303139

3249

425770

495080

555791

6482

135

313141

3350

446075

505285

575997

6786

145

FJT-2518

FJT-2818

FJT-3022

FJT-3522

FJT-4022

FJT-4522

FJTT-2520

FJTT-2820

FJTT-3024

FJTT-3524

FJTT-4024

FJTT-4524

MFJT-2518

MFJT-2818

MFJT-3022

MFJT-3522

MFJT-4022

MFJT-4522

FJLT-2518FJLT-2523

FJLT-2823

FJLT-3023FJLT-3028

FJLT-3518FJLT-3528

FJLT-4018FJLT-4028

FJLT-4523

FJLT-5028

FJLTT-2521FJLTT-2526

FJLTT-2826

FJLTT-3026FJLTT-3031

FJLTT-3521FJLTT-3531

FJLTT-4021FJLTT-4031

FJLTT-4526

FJLTT-5031

MFJLT-2518MFJLT-2523

MFJLT-2823

MFJLT-3023MFJLT-3028

MFJLT-3518MFJLT-3528

MFJLT-4018MFJLT-4028

MFJLT-4523

MFJLT-5028

955895

1 420

1 0201 580

1 3601 5602 200

1 8301 0302 450

1 8901 1802 810

2 1602 170

3 450

25

28

30

35

40

45

50

Boundary Dimensions(mm)

Fw D C3 C4 C2max

Basic DynamicLoad Ratings(N) {kgf}

Cr

Limiting Loads(N) {kgf}

Pmax

LimitingSpeeds(1)

(min-1)

Bearing

Open

FJT FJTT

Numbers

Closed Open Closed

MFJT FJLT FJLTT MFJLT

Mass (g)approx

FJT FJTT MFJTFJLT FJLTT MFJLT0

-0.250

-0.25

Note (1) This is the value when the speed at the seal contact surface is 10 m/sec under inner ring rotation. Under outer ring rotation, the limiting speed is half this value.

Remarks Standard grease is packed in the sealed drawn cup needle roller bearings unless otherwise specified.

Page 57: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 59

NSK NEEDLE BEARINGDRAWN CUP NEEDLE ROLLER BEARINGS

B 58

With Cage

Thin Type

DB

Inscribed Circle Diameter 18 - 82 mm

Boundary Dimensions(mm)

Fw D C

18 23 9.5 5 050 515 2 820 288 18 00033 39 26 22 500 2 300 19 500 1 980 9 500

39 45 12 6 500 665 4 200 430 8 00055 61 12 9 900 1 010 8 050 820 5 600

82 88 12 9 400 955 8 400 855 3 600

0–0.25

BearingNumbers

Mass(g)

approx

DB501801 7.5DB503303A 44.4

DB503901 23DB505501 35

DB508201 52

φD φFw

C

Basic DynamicLoad Ratings

(N) {kgf}

Cr

Limiting Loads

(N) {kgf}

Pmax

LimitingSpeeds(min-1)

Oil

Page 58: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 61

NSK NEEDLE BEARINGDRAWN CUP NEEDLE ROLLER BEARINGS

B 60

Full Complement Type

F ● FH (Open Type)

NF

MF ● MFH (Closed Type)

MNF

Inscribed Circle Diameter 8 - 20 mm

1415

1416

161618

19

202020

1919

21212121

2222

232323

2424

262626

1010

1010

101212

12

121316

1620

10121416

1216

121620

1216

121620

5 5506 100

5 8006 650

6 4507 9509 000

9 550

9 45010 40013 300

12 90016 100

8 05010 30012 40014 500

10 20014 400

11 30015 80020 200

10 90015 300

11 50016 20020 500

565625

595680

660810920

975

9651 0601 360

1 3101 640

8201 0501 2701 480

1 0401 460

1 1501 6102 060

1 1101 560

1 1701 6502 090

2 9803 350

4 0503 700

4 7006 2005 700

6 100

6 3507 2009 850

10 40013 800

5 0006 9008 800

10 700

7 10011 100

7 75012 00016 300

7 90012 300

8 70013 50018 300

10 00010 000

5 6009 000

5 0005 0007 500

7 100

6 0006 0006 000

5 3005 300

6 0006 0006 0006 000

5 3005 300

5 6005 6005 600

5 0005 000

4 5004 5004 500

FH-810FH-910

F-1010FH-1010

F-1210F-1212FH-1212

F-1312

F-1412F-1413F-1416

NF-1416NF-1420

F-1510F-1512F-1514F-1516

F-1612F-1616

F-1712F-1716F-1720

F-1812F-1816

F-2012F-2016F-2020

MFH-810MFH-910

MF-1010MFH-1010

MF-1210MF-1212MFH-1212

MF-1312

MF-1412MF-1413MF-1416

MNF-1416MNF-1420

MF-1510MF-1512MF-1514MF-1516

MF-1612MF-1616

MF-1712MF-1716MF-1720

MF-1812MF-1816

MF-2012MF-2016MF-2020

――

FIR-071010FIR-071010

FIR-081210FIR-081212FIR-081212

FIR-101312

FIR-101412FIR-101413

FIR-101416FIR-101420

FIR-101510FIR-101512

―FIR-121516

FIR-121612FIR-121616

――

FIR-121720

FIR-151812FIR-151816

FIR-172012FIR-172016FIR-152020

――

――

―――

―――

――

―FIR-121512

――

――

―――

――

――

FIR-172020

305340

415375

480630580

625

645735

1 000

1 0601 410

510705895

1 090

7251 130

7901 2201 670

8051 250

8851 3801 870

6.06.4

4.76.9

5.56.6

10

11

121318

1216

10121517

1418

141823

1419

172228

6.36.8

5.07.3

5.46.8

11

12

141519

1317

12141618

1520

152024

1622

192530

1.91.8

1.61.9

1.61.61.9

1.9

2.22.22.2

1.61.6

1.81.81.81.8

2.22.2

1.81.81.8

2.22.2

2.22.22.2

89

10

12

13

14

15

16

17

18

20

φD φFw

C

φD φFw

C

Closed TypeOpen Type

C1

Boundary Dimensions(mm)

Fw D C C1

max

Basic DynamicLoad Ratings

(N) {kgf}

Cr

Limiting Loads

(N) {kgf}

Pmax

LimitingSpeeds(min-1)

Oil

Bearing Numbers

Open ClosedF, FH MF, MFHNF MNF

Mass(g)

approxOpen Closed

Matching Inner Rings

0-0.25

Page 59: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 63

NSK NEEDLE BEARINGDRAWN CUP NEEDLE ROLLER BEARINGS

B 62

Full Complement Type

F (Open Type)

NFH

MF (Closed Type)

Inscribed Circle Diameter 22 - 55 mm

28282828

31

323232

35353535

37373737

42424242

474747

525252

5858

6363

10121620

25

162026

12162026

14162026

12162026

162026

162026

2024

2024

9 40012 10017 10021 600

31 500

20 20025 90034 000

14 80021 30027 30035 500

18 90022 10028 40037 000

16 90024 00031 00040 000

25 70032 50043 000

27 30035 00045 500

39 50048 000

41 50050 500

9601 2301 7402 200

3 250

2 0602 6403 450

1 5102 1702 7803 650

1 9302 2502 9003 800

1 7202 4503 1504 100

2 6203 3504 350

2 7903 5504 650

4 0504 900

4 2505 150

6 8509 500

14 80020 000

28 700

16 20022 20031 500

11 20017 90024 60034 500

15 50018 90026 20037 000

14 00022 00030 00042 500

24 90034 00048 000

27 80038 50054 000

41 50053 000

45 50058 000

4 0004 0004 0004 000

4 800

4 5004 5004 500

4 0004 0004 0004 000

3 8003 8003 8003 800

3 4003 4003 4003 400

3 0003 0003 000

2 6002 6002 600

2 8002 800

2 4002 400

F-2210F-2212F-2216F-2220

NFH-222A

F-2516F-2520F-2526

F-2812F-2816F-2820F-2826

F-3014F-3016F-3020F-3026

F-3512F-3516F-3520F-3526

F-4016F-4020F-4026

F-4516F-4520F-4526

F-5020F-5024

F-5520F-5524

MF-2210MF-2212MF-2216MF-2220

MF-2516MF-2520MF-2526

MF-2812MF-2816MF-2820MF-2826

MF-3014MF-3016MF-3020MF-3026

MF-3512MF-3516MF-3520MF-3526

MF-4016MF-4020MF-4026

MF-4516MF-4520MF-4526

MF-5020MF-5024

MF-5520MF-5524

FIR-172210FIR-172212FIR-172216FIR-172220

FIR-202516FIR-202520FIR-202526

―FIR-222816FIR-222820FIR-222826

――

FIR-253020FIR-253026

FIR-303512―

FIR-303520FIR-303526

―FIR-354020FIR-354026

―FIR-404520FIR-404526

――

――

――――

―――

――――

――――

――――

―――

―――

――

――

700970

1 5102 040

2 930

1 6502 2603 200

1 1501 8202 5103 550

1 5901 9302 6703 750

1 4202 2403 1004 350

2 5403 4504 900

2 8403 9005 500

4 2505 400

4 6505 950

14182430

45

314052

26354457

30354661

31425370

486079

536788

8198

88105

17212733

354355

32404862

34405166

38496076

566988

647899

95110

105125

2.22.22.22.2

2.52.52.5

2.52.52.52.5

2.52.52.52.5

2.52.52.52.5

2.52.52.5

2.52.52.5

2.82.8

2.82.8

22

24

25

28

30

35

40

45

50

55

φD φFw

C

Closed TypeOpen Type

C1

φD φFw

C

Boundary Dimensions(mm)

Fw D C C1

max

Basic DynamicLoad Ratings

(N) {kgf}

Cr

Limiting Loads

(N) {kgf}

Pmax

LimitingSpeeds(min-1)

Oil

Bearing Numbers

Open Closed

F, NFH MF

Mass(g)

approxOpen Closed

Matching Inner Rings

0-0.25

Page 60: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 65

NSK NEEDLE BEARINGDRAWN CUP NEEDLE ROLLER BEARINGS (INCH DESIGN)

B 64

With Cage

J (Open Type)

JH

MJ (Closed Type)

MJH

Inscribed Circle Diameter 9.525 - 19.050 mm

J-78

J-85J-88J-812

J-97J-98*J-910-F

J-108J-1010J-1012

J-1112

J-126J-128J-1210

J-1212

MJH-681

MJH-781

MJH-871MJH-881MJH-8121

MJH-98*MJH-9121-F

MJH-10101MJH-10161

MJH-11101MJH-11121

MJH-12121

MJ-781

MJ-851MJ-881―

MJ-971MJ-981*MJ-9101-F

MJ-1081MJ-10101MJ-10121

MJ-11121

――

MJ-12101

MJ-12121

JH-68

JH-78

JH-87JH-88JH-812

JH-98*JH-912-F

JH-1010JH-1016

JH-1110JH-1112

JH-1212

――

―――

―――

―IR-68―

IR-68―

IR-68-1―

IR-612-1

――

―――

―IR-88―

IR-812IR-812

――

―――

―――

―――

――

―――

――

―――

―――

――

8.2

6.49.1

5.47.37.7

9.51015

7.38.29.1

1114

8.61013

1525

161617

8.21216

2024

8.6

7.39.5

6.48.2―

111317

8.69.5

10

1316

101214

1827

181820

――19

2026

Bearing Numbers

Open Closed

J JH MJ MJH

Mass(g)

approxOpen Closed

Matching Inner Rings

0.3750

0.4375

0.5000

0.5625

0.6250

0.6875

0.7500

15.875

15.87517.462

17.46217.46217.462

19.05019.05019.050

19.05019.05019.050

20.63820.638

20.63820.63820.638

22.22522.225

22.22523.81223.812

25.40025.40025.400

25.40026.988

0.6250

0.62500.6875

0.68750.68750.6875

0.75000.75000.7500

0.75000.75000.7500

0.81250.8125

0.81250.81250.8125

0.87500.8750

0.87500.93750.9375

1.00001.00001.0000

1.00001.0625

12.70

12.7012.70

7.9212.7019.05

11.1312.7019.05

11.1312.7015.88

12.7019.05

12.7015.8819.05

15.8825.40

19.0515.8819.05

9.5212.7015.88

19.0519.05

0.5000

0.50000.5000

―0.50000.7500

―0.50000.7500

―0.50000.6250

0.50000.7500

0.50000.62500.7500

0.62501.0000

0.75000.62500.7500

0.37500.50000.6250

0.75000.7500

1.0

1.01.0

1.01.0―

1.01.01.0

1.01.01.0

1.01.0

1.01.01.0

1.01.0

1.01.01.0

――1.0

1.01.0

6 650

5 8007 150

3 1506 350

10 100

6 4507 600

12 400

5 3506 2508 200

8 05013 100

6 7508 850

11 600

11 60019 900

11 50012 10015 000

5 95010 00012 600

15 60019 200

675

595730

325650

1 030

655775

1 260

545640835

8201 330

685900

1 190

1 1902 030

1 1701 2301 530

6101 0201 280

1 5901 950

3 000

3 1003 300

1 4403 5006 450

2 9303 6006 800

2 8603 5005 000

3 9507 350

3 9505 6008 050

6 40012 800

8 0506 8509 000

2 8005 4507 250

9 60010 900

310

315340

147360655

298370690

292360510

400750

405570820

6551 300

820700915

285555740

9801 110

38 000

30 00030 000

26 00026 00026 000

26 00026 00026 000

22 00022 00022 000

24 00024 000

20 00020 00020 000

20 00020 000

18 00019 00019 000

17 00017 00017 000

17 00018 000

9.525

11.112

12.700

14.288

15.875

17.462

19.050

Boundary Dimensions(mm, inch)

Fw D C C2max

Basic DynamicLoad Ratings(N) {kgf}

Cr

Limiting Loads

(N) {kgf}

Pmax

LimitingSpeeds(min-1)

Oil0-0.25

φD φFw

C

Closed Type

φD φFw

C

Open Type

C2

Remarks Sealed bearings are available upon the request. * These bearings have polyamide cages. The maximum permissible operating temperaturefor these bearings is 100°C for continued operation and 120°C for short periods.

Page 61: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 67

NSK NEEDLE BEARINGDRAWN CUP NEEDLE ROLLER BEARINGS (INCH DESIGN)

B 66

With Cage

J (Open Type)

JH

MJ (Closed Type)

MJH

Inscribed Circle Diameter 20.638 - 50.800 mm

J-1314

J-146J-148J-1412

J-1416

J-1612J-1616

J-188J-1812J-1816

J-2012J-2016

J-228

J-2412J-2416J-2420

J-2616

J-2812J-2816J-2824

J-3016J-3216

MJH-13121

MJH-14121MJH-14161

MJH-16121MJH-16161

MJH-18121MJH-18161MJH-18181

MJH-20161―

MJH-22121MJH-22161

―――

MJ-14161

―MJ-16161

MJ-1881MJ-18121MJ-18161

MJ-20121MJ-20161

MJ-2281

MJ-24121MJ-24161MJ-24201

MJ-26161

MJ-28121MJ-28161MJ-28241

MJ-30161MJ-32161

JH-1312

JH-1412JH-1416

JH-1612JH-1616

JH-1812JH-1816JH-1818

JH-2012

JH-2016JH-2020

JH-2212JH-2216

――

――

IR-1012

IR-1016IR-1012IR-1016

IR-1212IR-1216IR-1212IR-1216

――

IR-1416

―IR-1416―

IR-1612IR-1616―

IR-1616―

―IR-1812IR-1816

―IR-1916IR-1920

―IR-2316IR-2324

――

――

―――

―――

IR-1312IR-1316IR-1312IR-1316

――

IR-1516

―IR-1516―

―――

――

―――

―IR-2016IR-2020

―IR-2426IR-2424

――

2529

111625

333142

28363446

273047

456271

436166

7075

685373

5881

105

89

9192

140

9699

―31

―――

363647

―404051

303551

526978

4665―

76―

776181

6890

115

96

105105155

135165

0.8125

0.8750

1.0000

1.1250

1.2500

1.3750

1.5000

1.6250

1.7500

1.87502.0000

26.98828.575

28.57528.57528.575

28.57530.16230.162

31.75031.75033.33833.338

34.92534.92534.925

38.10038.10038.100

38.10038.10041.275

41.27541.275

41.27544.45044.450

47.62547.62547.625

50.800

53.97553.97553.975

57.15060.325

1.06251.1250

1.12501.12501.1250

1.12501.18751.1875

1.25001.25001.31251.3125

1.37501.37501.3750

1.50001.50001.5000

1.50001.50001.6250

1.62501.6250

1.62501.75001.7500

1.87501.87501.8750

2.0000

2.12502.12502.1250

2.25002.3750

22.2219.05

9.5212.7019.05

25.4019.0525.40

19.0525.4019.0525.40

12.7019.0525.40

19.0525.4028.58

19.0525.4019.05

25.4031.75

12.7019.0525.40

19.0525.4031.75

25.40

19.0525.4038.10

25.4025.40

0.87500.7500

0.37500.50000.7500

1.00000.75001.0000

0.75001.00000.75001.0000

0.50000.75001.0000

0.75001.00001.1250

0.75001.00000.7500

1.00001.2500

0.50000.75001.0000

0.75001.00001.2500

1.0000

0.75001.00001.5000

1.00001.0000

―1.3

―――

1.01.31.3

―1.01.31.3

1.01.01.0

1.31.31.3

1.01.0―

1.3―

1.01.31.3

1.31.31.3

1.3

1.31.31.3

1.31.3

19 40018 900

6 60011 00017 900

23 80018 40025 500

18 20025 00020 80027 700

11 70019 10026 200

23 50032 00036 500

19 90027 40024 200

34 00042 500

12 40026 40036 500

28 50039 50049 500

39 500

29 70040 00060 000

41 50042 500

1 9801 930

6751 1201 830

2 4201 8802 600

1 8602 5502 1202 830

1 2001 9502 670

2 3903 2503 700

2 0302 7902 470

3 5004 350

1 2602 6903 750

2 9004 0005 050

4 000

3 0504 1006 100

4 2004 350

12 90011 100

3 3006 350

11 900

17 00011 00016 700

12 40018 70013 00018 900

7 25013 60020 400

14 00020 70024 600

14 70022 10014 900

23 20031 000

8 15016 80025 600

19 00028 90039 000

29 500

21 00031 00052 000

32 00034 500

1 3201 130

335645

1 210

1 7301 1201 700

1 2701 9101 3301 930

7401 3802 080

1 4202 1102 510

1 5002 2501 520

2 3603 150

8301 7102 610

1 9302 9503 950

3 000

2 1403 1505 300

3 3003 500

16 00016 000

14 00014 00014 000

14 00015 00015 000

12 00012 00013 00013 000

11 00011 00011 000

11 00011 00011 000

10 00010 00010 000

10 00010 000

9 0009 0009 000

8 5008 5008 500

7 500

7 1007 1007 100

6 7006 300

20.638

22.225

25.400

28.575

31.750

34.925

38.100

41.275

44.450

47.62550.800

φD φFw

C

Open Type

φD φFw

C

Closed Type

C2

Bearing Numbers

Open Closed

J JH MJ MJH

Mass(g)

approxOpen Closed

Matching Inner Rings

Boundary Dimensions(mm, inch)

Fw D C C2max

Basic DynamicLoad Ratings(N) {kgf}

Cr

Limiting Loads

(N) {kgf}

Pmax

LimitingSpeeds(min-1)

Oil0-0.25

Remarks Sealed bearings are available upon the request.

Page 62: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 69

NSK NEEDLE BEARINGDRAWN CUP NEEDLE ROLLER BEARINGS (INCH DESIGN)

B 68

Full Complement Type

B (Open Type)

BH

M (Closed Type)

MH

Inscribed Circle Diameter 11.112 - 15.875 mm

B-76B-77B-78

B-710

B-85B-86B-87

B-88B-810B-812

B-95B-96B-97

B-98B-910B-912

B-105B-107B-108

B-1010B-1012

MH-781

―MH-881MH-8101MH-8121

――

MH-9121

MH-1081

―MH-10121

――

M-781

M-851M-861M-871

M-881M-8101M-8121

M-951M-961M-971

M-981M-9101M-9121

M-1051M-1071M-1081

M-10101M-10121

BH-78

BH-87BH-88BH-810BH-812

BH-98BH-910BH-912

BH-108

BH-1010BH-1012BH-1016

―――

――

―――

―――

――――

―――

IR-68―

IR-612

IR-68―

IR-612

――

IR-68-1

―IR-612-1IR-68-1

―IR-612-1―

―――

――

―――

―――

――――

―――

―――

―――

―――

―――

―――

5.46.47.3

9.510

5.46.47.3

8.21113

7.3111418

5.76.47.7

9.11214

121620

5.98.6

10

131613

172130

――8.2

―11

6.47.38.2

9.11214

―131619

7.17.79.1

101316

――21

7.71112

151815

―23―

0.4375

0.5000

0.5625

0.6250

15.87515.87515.875

15.87517.462

17.46217.46217.462

17.46217.46217.462

19.05019.05019.05019.050

19.05019.05019.050

19.05019.05019.050

20.63820.63820.638

20.63820.63820.638

20.63820.63822.225

22.22522.22522.225

0.62500.62500.6250

0.62500.6875

0.68750.68750.6875

0.68750.68750.6875

0.75000.75000.75000.7500

0.75000.75000.7500

0.75000.75000.7500

0.81250.81250.8125

0.81250.81250.8125

0.81250.81250.8750

0.87500.87500.8750

9.5211.1312.70

15.8812.70

7.929.52

11.13

12.7015.8819.05

11.1312.7015.8819.05

7.929.52

11.13

12.7015.8819.05

12.7015.8819.05

7.9211.1312.70

15.8819.0512.70

15.8819.0525.40

0.3750―

0.5000

0.62500.5000

―0.3750―

0.50000.62500.7500

―0.50000.62500.7500

―0.3750―

0.50000.62500.7500

0.50000.62500.7500

――

0.5000

0.62500.75000.5000

0.62500.75001.0000

――2.0

―2.3

2.02.02.0

2.02.02.0

―2.32.32.3

2.02.02.0

2.02.02.0

――2.3

2.02.02.0

2.02.02.3

―2.3―

6 0507 3508 600

10 9009 850

5 1006 5507 950

9 25011 80014 100

9 00010 70013 80016 700

5 4007 0008 500

9 90012 50015 100

11 40014 80017 900

5 7508 950

10 500

13 30016 00012 200

15 70019 00025 200

620750875

1 1101 000

520665810

9451 2001 440

9201 0901 4001 700

550710865

1 0101 2801 540

1 1701 5101 830

585915

1 070

1 3501 6301 240

1 6001 9402 570

3 9005 0006 100

8 3006 000

3 2004 4005 650

6 9009 350

11 800

5 4006 7009 350

11 900

3 5504 9006 300

7 65010 40013 200

7 40010 30013 200

3 9006 9008 400

11 40014 500

8 150

11 30014 50020 800

400510625

850610

325450575

700955

1 210

550685950

1 220

360500640

7801 0601 340

7551 0501 350

395705860

1 1701 480

830

1 1501 4702 120

6 0006 0006 000

6 0008 500

5 3005 3005 300

5 3005 3005 300

7 5007 5007 5007 500

5 0005 0005 000

5 0005 0005 000

7 1007 1007 100

4 5004 5004 500

4 5004 5006 300

6 3006 3006 300

11.112

12.700

14.288

15.875

φD φFw

C

C1

Closed Type

φD φFw

C

Open Type

Bearing Numbers

Open Closed

B BH M MH

Mass(g)

approxOpen Closed

Matching Inner Rings

Boundary Dimensions(mm, inch)

Fw D C C1max

Basic DynamicLoad Ratings(N) {kgf}

Cr

Limiting Loads

(N) {kgf}

Pmax

LimitingSpeeds(min-1)

Oil0-0.25

Page 63: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 71

NSK NEEDLE BEARINGDRAWN CUP NEEDLE ROLLER BEARINGS (INCH DESIGN)

B 70

Full Complement Type

B (Open Type)

BH

M (Closed Type)

MH

Inscribed Circle

Diameter 17.462 - 23.812 mm

B-116B-118B-1110

B-1112

B-126B-128B-1210B-1212

B-136B-138B-1314

B-1316

B-146B-148B-1412

B-1416B-1418

B-158B-1516

――

MH-11101―

MH-1381MH-13101MH-13121

MH-14101

MH-14121MH-14161

M-1161M-1181M-11101

M-11121

M-1261M-1281M-12101M-12121

―M-1381M-13141

M-13161

M-1461M-1481M-14121

M-14161―

―M-15161

BH-117BH-118

BH-1110BH-1112

BH-138BH-1310BH-1312

BH-1410

BH-1412BH-1416

―――

―――

――

―IR-88―

IR-812

―――

――――

――

IR-1012

IR-1016――

IR-1012―

――

―――

―――

――

――――

―――

――――

―――

―――

――

――

101114

171317

2025

10152025

121732

37222635

131829

405030

3640

2041

121417

20――

23―

13182328

―2036

40242937

172233

43―35

4143

―46

0.6875

0.7500

0.8125

0.8750

0.9375

22.22522.22522.225

22.22523.81223.812

23.81223.812

25.40025.40025.40025.400

26.98826.98826.988

26.98828.57528.57528.575

28.57528.57528.575

28.57528.57530.162

30.16230.162

30.16230.162

0.87500.87500.8750

0.87500.93750.9375

0.93750.9375

1.00001.00001.00001.0000

1.06251.06251.0625

1.06251.12501.12501.1250

1.12501.12501.1250

1.12501.12501.1875

1.18751.1875

1.18751.1875

9.5212.7015.88

19.0511.1312.70

15.8819.05

9.5212.7015.8819.05

9.5212.7022.22

25.4012.7015.8819.05

9.5212.7019.05

25.4028.5815.88

19.0525.40

12.7025.40

0.37500.50000.6250

0.7500―

0.5000

0.62500.7500

0.37500.50000.62500.7500

0.37500.50000.8750

1.00000.50000.62500.7500

0.37500.50000.7500

1.00001.12500.6250

0.75001.0000

0.50001.0000

2.02.02.0

2.0――

2.3―

2.32.32.32.3

―2.32.3

2.32.82.82.8

2.32.32.3

2.3―2.8

2.82.8

―2.3

7 80011 00014 000

16 80010 80012 800

16 60020 100

9 15013 50017 40021 100

9 60014 10025 700

29 20014 10018 80023 200

10 00014 70022 900

30 50034 00019 400

24 00032 500

15 20031 500

7951 1201 430

1 7101 1001 310

1 6902 050

9351 3701 7702 150

9751 4402 620

2 9801 4401 9202 360

1 0201 4902 340

3 1003 4501 980

2 4403 300

1 5503 200

5 8509 200

12 500

15 8007 1008 850

12 30015 700

5 8009 550

13 30017 000

6 25010 20022 200

26 2009 100

13 20017 300

6 70011 00019 500

28 00032 50014 100

18 40027 100

11 70029 800

600935

1 270

1 610725900

1 2501 600

595975

1 3501 730

6351 0502 270

2 670930

1 3501 760

6801 1201 990

2 8603 3001 430

1 8802 770

1 1903 050

4 0004 0004 000

4 0006 0006 000

6 0006 000

5 3005 3005 3005 300

5 0005 0005 000

5 0006 0006 0006 000

4 8004 8004 800

4 8004 8005 600

5 6005 600

4 5004 500

17.462

19.050

20.638

22.225

23.812

φD φFw

C

C1

Closed Type

Bearing Numbers

Open Closed

B BH M MH

Mass(g)

approxOpen Closed

Matching Inner Rings

Boundary Dimensions(mm, inch)

Fw D C C1max

Basic DynamicLoad Ratings(N) {kgf}

Cr

Limiting Loads

(N) {kgf}

Pmax

LimitingSpeeds(min-1)

Oil0-0.25

φD φFw

C

Open Type

Page 64: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 73

NSK NEEDLE BEARINGDRAWN CUP NEEDLE ROLLER BEARINGS (INCH DESIGN)

B 72

Full Complement Type

B (Open Type)

BH

M (Closed Type)

MH

Inscribed Circle

Diameter 25.400 - 31.750 mm

B-166B-167B-168

B-1610B-1612B-1616

B-1710

B-186B-188B-1812

B-1816

B-1910B-1916

B-208B-2010B-2012

B-2016B-2020

MH-1681―

MH-16121

―MH-16161

―MH-16241

MH-18121MH-18161

―MH-18201

MH-2081MH-20121MH-20161MH-20201

―M-1671M-1681

M-16101M-16121M-16161

M-17101

M-1861M-1881M-18121

M-18161

M-19101―

M-2081M-20101M-20121

M-20161M-20201

BH-168BH-1610BH-1612

BH-1614BH-1616BH-1620BH-1624

BH-1812BH-1816

BH-1818BH-1820

BH-208BH-2012BH-2016BH-2020

――

IR-128

―IR-1212IR-1216

IR-128―

IR-1212

―IR-1216IR-1220IR-1224

―――

IR-1416―

IR-1416

――

――

――

IR-1612

IR-1616―

―IR-1612IR-1616―

―――

―IR-1312IR-1316

――

IR-1312

―IR-1316――

―――

IR-1516―

IR-1516

――

――

―――

――

――――

141720

263244

253340

48557085

27

152335

485575

8698

3562

243239

5468

285780

105

―2225

313749

30―45

―60―91

32

202840

546282

―105

41―

313845

6074

326286

110

1.0000

1.0625

1.1250

1.1875

1.2500

31.75031.75031.750

31.75031.75031.750

33.33833.33833.338

33.33833.33833.33833.338

33.338

34.92534.92534.925

34.92538.10038.100

38.10038.100

38.10038.100

38.10038.10038.100

38.10038.100

41.27541.27541.27541.275

1.25001.25001.2500

1.25001.25001.2500

1.31251.31251.3125

1.31251.31251.31251.3125

1.3125

1.37501.37501.3750

1.37501.50001.5000

1.50001.5000

1.50001.5000

1.50001.50001.5000

1.50001.5000

1.62501.62501.62501.6250

9.5211.1312.70

15.8819.0525.40

12.7015.8819.05

22.2225.4031.7538.10

15.88

9.5212.7019.05

25.4019.0525.40

28.5831.75

15.8825.40

12.7015.8819.05

25.4031.75

12.7019.0525.4031.75

0.3750―

0.5000

0.62500.75001.0000

0.50000.62500.7500

0.87501.00001.25001.5000

0.6250

0.37500.50000.7500

1.00000.75001.0000

1.12501.2500

0.62501.0000

0.50000.62500.7500

1.00001.2500

0.50000.75001.00001.2500

―2.32.3

2.32.32.3

2.8―2.8

―2.8―2.8

2.3

2.32.32.3

2.33.03.0

―3.0

2.8―

2.32.32.3

2.32.3

3.03.03.03.0

10 70013 30015 700

20 30024 70032 500

15 80021 00025 900

30 50035 00043 50051 500

21 000

11 40016 80026 200

35 00030 00041 000

46 00051 000

23 00038 500

17 70022 90027 700

37 00045 500

18 40031 50043 00053 500

1 0901 3501 610

2 0702 5103 350

1 6102 1402 650

3 1003 6004 4505 250

2 140

1 1601 7102 680

3 5503 0504 150

4 7005 200

2 3503 900

1 8102 3302 830

3 7504 600

1 8803 2004 4005 450

7 5509 950

12 400

17 20022 00031 500

10 90015 90020 800

25 70030 50040 50050 500

18 200

8 40013 80024 500

35 50022 90034 000

39 50045 500

18 50035 500

15 20021 10027 000

39 00050 500

12 50025 00037 50049 500

7701 0101 260

1 7502 2403 250

1 1201 6202 120

2 6203 1004 1005 150

1 850

8551 4102 500

3 6002 3403 500

4 0504 600

1 8903 650

1 5502 1502 760

3 9505 150

1 2802 5503 8005 050

4 0004 0004 000

4 0004 0004 000

5 0005 0005 000

5 0005 0005 0005 000

4 000

3 8003 8003 800

3 8005 3005 300

5 3005 300

4 3004 300

3 4003 4003 400

3 4003 400

5 0005 0005 0005 000

25.400

26.988

28.575

30.162

31.750

φD φFw

C

C1

Closed Type

φD φFw

C

Open Type

Bearing Numbers

Open Closed

B BH M MH

Mass(g)

approxOpen Closed

Matching Inner Rings

Boundary Dimensions(mm, inch)

Fw D C C1max

Basic DynamicLoad Ratings(N) {kgf}

Cr

Limiting Loads

(N) {kgf}

Pmax

LimitingSpeeds(min-1)

Oil0-0.25

Page 65: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 75

NSK NEEDLE BEARINGDRAWN CUP NEEDLE ROLLER BEARINGS (INCH DESIGN)

B 74

Full Complement Type

B (Open Type)

BH

M (Closed Type)

MH

Inscribed Circle

Diameter 33.338 - 50.800 mm

B-218B-2110

B-228B-2212B-2216

B-2220

B-248B-2410B-2412

B-2414B-2416B-2420

B-268B-2610B-2616B-2620

B-2812B-2816B-2820B-2824

B-308B-3012B-3016

B-328B-3216B-3220

B-3224B-3228

――

MH-22121MH-22161

M-2181M-21101

M-2281M-22121M-22161

M-22201

M-2481M-24101M-24121

M-24141M-24161M-24201

―M-26101

―M-26201

M-28121M-28161

―M-28241

M-3081―

M-30161

M-3281M-32161M-32201

M-32241M-32281

BH-228BH-2210

BH-2212BH-2216BH-2220

――

―IR-1812IR-1816

IR-1820――

IR-1812IR-1816IR-1820

―――

―IR-1916IR-1920

―――

IR-2220

―IR-2316―

IR-2324

―――

―――

――

――

―――

―――

―――

―――

―IR-2016IR-2020

――――

―IR-2416―

IR-2424

―――

―――

――

3240

274358

742943

5887

115

395469

8192

120

405789

140

78110140170

5282

110

51120150

185220

3846

344965

83――

6695―

486378

90100130

―74―

155

92125―

190

73―

130

72140175

205240

1.3125

1.3750

1.5000

1.6250

1.7500

1.8750

2.0000

41.27541.275

41.27541.27541.275

41.27544.45044.450

44.45044.45044.450

47.62547.62547.625

47.62547.62547.625

50.80050.80050.80050.800

53.97553.97553.97553.975

57.15057.15057.150

60.32560.32560.325

60.32560.325

1.62501.6250

1.62501.62501.6250

1.62501.75001.7500

1.75001.75001.7500

1.87501.87501.8750

1.87501.87501.8750

2.00002.00002.00002.0000

2.12502.12502.12502.1250

2.25002.25002.2500

2.37502.37502.3750

2.37502.3750

12.7015.88

12.7019.0525.40

31.7512.7015.88

19.0525.4031.75

12.7015.8819.05

22.2225.4031.75

12.7015.8825.4031.75

19.0525.4031.7538.10

12.7019.0525.40

12.7025.4031.75

38.1044.45

0.50000.6250

0.50000.75001.0000

1.25000.50000.6250

0.75001.00001.2500

0.50000.62500.7500

0.87501.00001.2500

0.50000.62501.00001.2500

0.75001.00001.25001.5000

0.50000.75001.0000

0.50001.00001.2500

1.50001.7500

2.82.8

2.32.32.3

2.3――

3.03.0―

3.03.03.0

3.03.03.0

―3.0―3.0

3.03.0―3.0

3.0―3.0

3.03.03.0

3.03.0

18 30024 400

18 60029 20038 500

47 50020 10027 200

33 50046 00057 000

20 90038 20035 000

41 50048 00059 500

21 50029 20049 50061 500

37 50051 00064 00076 000

23 50039 50054 000

24 00055 00069 000

82 00094 000

1 8602 490

1 9002 9703 950

4 8502 0502 770

3 4504 7005 850

2 1302 8803 600

4 2504 8506 050

2 2002 9805 0506 300

3 8505 2506 5007 750

2 4004 0505 500

2 4505 6507 000

8 3509 600

14 00020 300

16 60029 50042 500

55 50014 10020 800

27 50041 00054 000

15 20022 50029 700

37 00044 00058 500

16 20024 00047 50063 000

34 00050 50067 50084 000

18 70036 50054 000

19 70057 50076 000

95 000114 000

1 4302 070

1 6903 0004 350

5 6501 4402 120

2 8004 1505 550

1 5502 2903 050

3 7504 5006 000

1 6602 4504 8506 400

3 4505 1506 8508 550

1 9103 7005 550

2 0105 8507 750

9 70011 600

4 0004 000

3 0003 0003 000

3 0004 5004 500

4 5004 5004 500

4 0004 0004 000

4 0004 0004 000

3 8003 8003 8003 800

3 6003 6003 6003 600

3 4003 4003 400

3 2003 2003 200

3 2003 200

33.338

34.925

38.100

41.275

44.450

47.625

50.800

φD φFw

C

C1

Closed Type

φD φFw

C

Open Type

Bearing Numbers

Open Closed

B BH M MH

Mass(g)

approxOpen Closed

Matching Inner Rings

Boundary Dimensions(mm, inch)

Fw D C C1max

Basic DynamicLoad Ratings(N) {kgf}

Cr

Limiting Loads

(N) {kgf}

Pmax

LimitingSpeeds(min-1)

Oil0-0.25

Page 66: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 77

NSK NEEDLE BEARINGDRAWN CUP NEEDLE ROLLER BEARINGS (INCH DESIGN)

B 76

Full Complement Type (Grease-Retained Roller Type)

Y

YH

Inscribed Circle Diameter 3.969 - 20.638 mm

Y-2 1/221/2Y-2 1/24

Y-34

Y-45Y-47

Y-55

Y-64Y-66Y-68Y-610

Y-78YH-78

Y-84Y-86Y-87

Y-88Y-810Y-812YH-810

Y-98Y-910Y-912

Y-105Y-108Y-1012YH-108

Y-1112

Y-124Y-128Y-1210Y-1212

Y-136Y-138YH-1310YH-1312

0.41.4

2.3

3.24.5

4.1

3.25.57.39.1

8.211

5.47.38.2

9.1111416

9.51215

6.4111715

24

8.2172227

13192837

Bearing Numbers

Mass(g)

approx

0.1875

0.2500

0.3125

0.3750

0.4375

0.5000

0.5625

0.6250

0.6875

0.7500

0.8125

7.1447.144

8.731

11.11211.112

12.700

14.28814.28814.28814.288

15.87517.462

17.46217.46217.462

17.46217.46217.46219.050

19.05019.05019.050

20.63820.63820.63822.225

22.225

25.40025.40025.40025.400

26.98826.98828.57528.575

――

0.43750.4375

0.5000

0.56250.56250.56250.5625

0.62500.6875

0.68750.68750.6875

0.68750.68750.68750.7500

0.75000.75000.7500

0.81250.81250.81250.8750

0.8750

1.00001.00001.00001.0000

1.06251.06251.12501.1250

3.966.35

6.35

7.9211.13

7.92

6.359.52

12.7015.88

12.7012.70

6.359.52

11.13

12.7015.8819.0515.88

12.7015.8819.05

7.9212.7019.0512.70

19.05

6.3512.7015.8819.05

9.5212.7015.8819.05

―0.2500

0.2500

――

0.25000.37500.50000.6250

0.50000.5000

0.25000.3750―

0.50000.62500.75000.6250

0.50000.62500.7500

―0.50000.75000.5000

0.7500

0.25000.50000.62500.7500

0.37500.50000.62500.7500

1 2602 300

2 560

4 1505 950

4 750

4 0006 5008 750

10 800

9 55011 400

4 7007 6509 000

10 30012 70015 00014 600

11 00013 60016 000

7 05011 60017 00013 300

17 900

6 25010 80018 60022 100

11 30015 50021 30025 600

129235

261

420605

485

410660890

1 100

9751 160

480780915

1 0501 3001 5301 480

1 1201 3801 640

7201 1801 7301 360

1 820

6401 1001 8902 250

1 1501 5802 1702 610

5801 260

1 350

2 3003 700

2 760

2 2504 2006 1008 050

7 0007 250

2 8905 3506 600

7 85010 30012 80010 300

8 75011 50014 200

5 0509 600

15 7009 350

17 100

3 6507 350

14 70018 400

7 90011 90015 50019 600

59128

137

234375

281

229425625820

715740

295550675

8001 0501 3101 050

8901 1701 450

515980

1 600955

1 740

370750

1 5001 880

8051 2101 5802 000

10 00010 000

10 000

10 00010 000

8 000

7 1007 1007 1007 100

6 0008 500

5 3005 3005 300

5 3005 3005 3007 500

5 0005 0005 000

4 5004 5004 5006 000

4 000

5 3005 3005 3005 300

5 0005 0006 0006 000

3.969

4.762

6.350

7.938

9.525

11.112

12.700

14.288

15.875

17.462

19.050

20.638

Boundary Dimensions(mm, inch)

Fw D C

Basic DynamicLoad Ratings

(N) {kgf}

Cr

Limiting Loads

(N) {kgf}

Pmax

LimitingSpeeds(min-1)

Oil0-0.25

φD φFw

C

Remarks 1. In this type of bearing, a special grease holds the rollers in place until mounting.2. Metric series bearings are available. Please consult NSK.

Page 67: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 79

NSK NEEDLE BEARINGDRAWN CUP NEEDLE ROLLER BEARINGS (INCH DESIGN)

B 78

Full Complement Type (Grease-Retained Roller Type)

Y

YH

Inscribed Circle

Diameter 22.225 - 47.625 mm

Y-148Y-1412Y-1416YH-1412

Y-168Y-1612Y-1616

YH-168YH-1612YH-1616

Y-188Y-1812Y-1816

Y-1910

Y-2010Y-2012Y-2016

Y-2018Y-2020

Y-228Y-2212Y-2220

Y-246Y-248Y-2414

Y-2416Y-2420

Y-2610Y-2816Y-3012

20314238

233547

304358

263852

43

344257

6472

364776

344889

100125

73120115

0.8750

1.0000

1.1250

1.1875

1.2500

1.3750

1.5000

1.62501.75001.8750

28.57528.57528.57530.162

31.75031.75031.750

33.33833.33833.338

34.92534.92534.925

38.100

38.10038.10038.100

38.10038.100

41.27541.27541.275

47.62547.62547.625

47.62547.625

50.80053.97557.150

1.12501.12501.12501.1875

1.25001.25001.2500

1.31251.31251.3125

1.37501.37501.3750

1.5000

1.50001.50001.5000

1.50001.5000

1.62501.62501.6250

1.87501.87501.8750

1.87501.8750

2.00002.12502.2500

12.7019.0525.4019.05

12.7019.0525.40

12.7019.0525.40

12.7019.0525.40

15.88

15.8819.0525.40

28.5831.75

12.7019.0531.75

9.5212.7022.22

25.4031.75

15.8825.4019.05

0.50000.75001.00000.7500

0.50000.75001.0000

0.50000.75001.0000

0.50000.75001.0000

0.6250

0.62500.75001.0000

1.12501.2500

0.50000.75001.2500

0.37500.50000.8750

1.00001.2500

0.62501.00000.7500

15 90023 70031 00025 500

17 20025 50033 000

18 80028 60037 500

18 30027 20035 500

26 500

24 30028 90037 500

41 50045 500

20 00029 70047 000

16 90024 70044 500

51 00062 500

33 00054 50043 000

1 6202 4103 1502 600

1 7502 6003 400

1 9202 9203 850

1 8702 7803 600

2 700

2 4802 9403 850

4 2504 650

2 0403 0504 800

1 7302 5204 550

5 2006 350

3 3505 5504 400

12 70021 10029 60020 500

14 30023 90033 500

13 80023 60033 500

16 00026 60037 500

22 200

23 50029 30041 000

47 00053 000

19 30032 00058 000

11 60018 90040 500

48 00062 000

27 90055 00041 000

1 2902 1503 0002 090

1 4602 4303 400

1 4002 4103 400

1 6302 7103 800

2 260

2 4002 9904 200

4 8005 400

1 9603 2505 900

1 1901 9304 150

4 8506 350

2 8405 6004 200

4 5004 5004 5005 300

4 0004 0004 000

5 0005 0005 000

3 6003 6003 600

4 300

3 2003 2003 200

3 2003 200

2 8002 8002 800

4 0004 0004 000

4 0004 000

3 8003 6003 400

22.225

25.400

28.575

30.162

31.750

34.925

38.100

41.27544.45047.625

φD φFw

C

Bearing Numbers

Mass(g)

approx

Boundary Dimensions(mm, inch)

Fw D C

Basic DynamicLoad Ratings

(N) {kgf}

Cr

Limiting Loads

(N) {kgf}

Pmax

LimitingSpeeds(min-1)

Oil0-0.25

Remarks 1. In this type of bearing, a special grease holds the rollers in place until mounting.2. Metric series bearings are available. Please consult NSK.

Page 68: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 81

NSK NEEDLE BEARINGDRAWN CUP NEEDLE ROLLER BEARINGS

B 80

Miniature Bearings with Cages

FJ ● FJH ● FJL (Open Type)

FJP

MFJ ● MFJH (Closed Type)

MFJL

Inscribed Circle Diameter 3 - 9 mm

*FJP-36*FJP-48

FJ-58LFJ-59

FJ-69FJ-79

FJ-88-2FJ-810FJH-810

FJ-910FJH-910

FJL-810FJL-815FJL-820

FJL-912LFJL-916

――

―MFJ-59

MFJ-69MFJ-79

―MFJ-810MFJH-810

MFJ-910MFJH-910

MFJL-810LMFJL-815LMFJL-820L

MFJL-912LMFJL-916L

0.91.3

1.61.7

2.22.3

2.32.75.2

6.08.9

15

3.25.77.7

11

――

―1.9

2.42.7

―3.25.5

6.69.9

13

3.66.18.5

12

6.58

99

1011

121214

151515

13151616

――

―0.8

0.80.8

―0.81

111

0.8111

68

89

99

81010

101520

10101216

1 2301 720

1 5501 860

2 3202 550

2 5802 8404 300

4 4007 100

10 100

3 3004 5505 1507 800

125175

158190

237260

263289435

450720

1 020

335465525795

465670

585745

9851 110

1 1501 2701 770

1 7703 2505 100

1 6001 9102 1403 650

100 00075 000

71 00071 000

56 00048 000

40 00043 00045 000

45 00045 00045 000

36 00040 00040 00040 000

4769

6076

101113

118130180

181330520

163194219370

34

5

67

8

9

φD φFw

C

φD φFw

C

C2

Closed Type

FJ, FJH, FJL FJP

Open Type

φD φFw

C

Boundary Dimensions(mm)

Fw D C C2

max

Basic DynamicLoad Ratings

(N) {kgf}

Cr

Limiting Loads

(N) {kgf}

Pmax

LimitingSpeeds(min-1)

Oil

Bearing Numbers

Open ClosedFJP, FJ FJL MFJ MFJLFJH MFJH

Mass(g)

approxOpen Closed0

-0.25

* These bearings have polyamide cages. The maximum permissible operating temperaturefor these bearings is 100°C for continued operation and 120°C for short periods.

Page 69: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 83

NSK NEEDLE BEARINGDRAWN CUP NEEDLE ROLLER BEARINGS

B 82

Full Complement Miniature Bearings

F (Open Type)

MF (Closed Type)

MFY

DD (Open Type ● Closed Type)

Inscribed Circle Diameter 3.036 - 9 mm

DD500302DD500304

―F-48

F-58―

F-59

F-68F-69

―F-79

F-88―

F-810F-812

―F-910

――

DD500401MF-48

MF-58MFY-57MF-59

MF-68MF-69

DD500701MF-79

MF-88MFY-88MF-810MF-812

MFY-99MF-910

1.42.0

―1.4

1.8―2.0

2.12.3

―2.7

2.7―3.63.8

―4.1

――

1.51.8

2.22.12.3

2.72.8

2.83.2

3.23.34.14.7

4.14.5

Bearing Numbers

Open Closed

F, DD MF, MFY, DD

Mass(g)

approxOpen Closed

7.0357.035

88

999

1010

1111

12121212

1313

6.659.2

68

879

89

7.59

88

1012

910

――

0.81.7

1.70.81.7

1.71.7

0.81.7

1.70.81.71.7

0.81.7

1 6302 330

2 2402 470

2 7903 0003 250

3 1503 700

4 1004 100

3 8504 7505 0006 200

5 6505 400

167238

229252

285305335

325380

420420

390485510635

575550

8551 360

1 1501 300

1 5201 6701 860

1 7802 170

2 4802 480

2 2802 9903 2004 200

3 8503 650

87138

117132

155170190

181221

253253

233305325430

395370

12 00012 000

12 00012 000

10 00010 00010 000

8 5008 500

7 5007 500

7 1007 1007 1007 100

6 0006 000

3.036

4

5

6

7

8

9

Boundary Dimensions(mm)

Fw D C C1 , C2max

Basic DynamicLoad Ratings

(N) {kgf}

Cr

Limiting Loads

(N) {kgf}

Pmax

LimitingSpeeds(min-1)

Oil0-0.25

φD φFw

C

φD φFw

C

C1 C2

Closed TypeOpen TypeOpen Type

φD φFw

C

φD φFw

C

MFY, DDMFFDD

Page 70: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 85

NSK NEEDLE BEARING

φD φFw

C

C2

Closed Type

DRAWN CUP NEEDLE ROLLER BEARINGS (INCH DESIGN)

B 84

Miniature Bearings with Cages

J ● JP (Open Type)

JH

MJ ● MJH (Closed Type)

Inscribed Circle

Diameter 3.175 - 9.525 mm

*JP-23-FV*JP-2 1/2 3-FV

*JP-33-FVJ-36

*JP-44-FVJ-45J-47

J-55J-57JH-57

J-65J-68

――

―MJ-361

―MJ-451MJ-471

MJ-551MJ-571MJH-571

MJ-651MJ-681

0.50.5

0.92.3

1.82.33.6

3.04.15.9

3.25.4

――

―2.7

―2.74.1

3.34.56.4

3.65.9

Bearing Numbers

Open Closed

J, JP, JH MJ, MJH

Mass(g)

approxOpen Closed

0.1250―

0.1875

0.2500

0.3125

0.3750

6.3507.144

8.7318.731

11.11211.11211.112

12.70012.70014.288

14.28814.288

0.2500―

――

0.43750.43750.4375

0.50000.50000.5625

0.56250.5625

4.784.78

4.789.52

6.357.92

11.13

7.9211.1311.13

7.9212.70

――

―0.3750

0.2500――

―――

―0.5000

――

―1.0

―1.01.0

1.01.01.0

1.01.0

890910

1 0902 290

2 0401 9403 300

2 3003 9004 700

2 6205 250

9193

111234

208198335

235400480

267535

320320

370970

775720

1 430

9001 7901 950

1 0802 640

75 00075 000

75 00075 000

56 00056 00056 000

43 00043 00045 000

36 00036 000

3232

3899

7974

146

92183199

110270

3.1753.969

4.762

6.350

7.938

9.525

Boundary Dimensions(mm, inch)

Fw D C C2

max

Basic DynamicLoad Ratings

(N) {kgf}

Cr

Limiting Loads

(N) {kgf}

Pmax

LimitingSpeeds(min-1)

Oil0-0.25

φD φFw

C

J, JH

φD φFw

C

JPOpen Type

* These bearings have polyamide cages. The maximum permissible operating temperaturefor these bearings is 100°C for continued operation and 120°C for short periods.

Page 71: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 87

NSK NEEDLE BEARINGDRAWN CUP NEEDLE ROLLER BEARINGS (INCH DESIGN)

B 86

Full Complement Miniature Bearings

B ● BH (Open Type)

M ● MH (Closed Type)

Inscribed Circle

Diameter 3.175 - 9.525 mm

φD φFw

C

C1

B-24

B-2 1/2 4B-2 1/2 5

B-34B-36

B-44B-45B-46B-47

B-55B-56B-57

B-59

B-65B-66B-67

B-68B-69B-610

BH-57

BH-68

M-241

M-2 1/2 41M-2 1/2 51

M-341M-361

M-441M-451MC-461M-471

M-551M-561M-571

M-591

M-651M-661―

M-681―

M-6101

MH-571

MH-681

0.9

0.91.4

1.82.3

2.32.73.44.1

3.64.55.0

6.46.4

4.15.05.9

6.87.78.69.1

1.4

1.41.8

2.32.7

2.73.23.94.5

4.14.85.4

6.86.8

4.55.4―

7.3―9.19.5

Bearing Numbers

Open Closed

B BH M MH

Mass(g)

approxOpen Closed

0.1250

0.1875

0.2500

0.3125

0.3750

6.350

7.1447.144

8.7318.731

11.11211.11211.11211.112

12.70012.70012.700

12.70014.288

14.28814.28814.288

14.28814.28814.28815.875

0.2500

――

――

0.43750.43750.43750.4375

0.50000.50000.5000

0.50000.5625

0.56250.56250.5625

0.56250.56250.56250.6250

6.35

6.357.92

6.359.52

6.357.929.52

11.13

7.929.52

11.13

14.2711.13

7.929.52

11.13

12.7014.2715.8812.70

0.2500

0.2500―

0.25000.3750

0.2500―

0.3750―

―0.3750―

――

―0.3750―

0.5000―

0.62500.5000

1.3

1.31.3

1.81.8

2.02.02.02.0

2.02.02.0

2.02.3

2.02.0―

2.0―2.02.3

1 640

1 9302 520

2 1003 600

2 4903 3504 3505 250

3 8505 0006 050

8 0506 650

4 3005 5506 750

7 8508 950

10 0008 950

167

197257

214365

254345440535

395510615

820680

440565690

800915

1 020910

835

1 0001 420

1 0402 090

1 2001 7602 4403 150

2 1202 9303 750

5 4003 700

2 4703 4004 400

5 3506 3007 3005 300

85

102144

106213

122180249320

216299385

555375

252350450

545645740540

12 000

10 00010 000

10 00010 000

10 00010 00010 00010 000

8 0008 0008 000

8 00011 000

7 1007 1007 100

7 1007 1007 100

10 000

3.175

3.969

4.762

6.350

7.938

9.525

Boundary Dimensions(mm, inch)

Fw D C C1

max

Basic DynamicLoad Ratings(N) {kgf}

Cr

Limiting Loads

(N) {kgf}

Pmax

LimitingSpeeds(min-1)

Oil0-0.25

φD φFw

C

Open Type Closed Type

Page 72: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 89

NSK NEEDLE BEARING

B 88 B 89

SOLID NEEDLE ROLLER BEARINGSMETRIC DESIGN

RLM・LM, RNA・NA Inscribed Circle Diameter 8-115 mm ................................... B 96-B109

RNA・NA Inscribed Circle Diameter 120-490 mm ................................... B110-B113

RNAF・NAF, RNAFW・NAFW Inscribed Circle Diameter 10-100 mm ................................... B114-B117

RNA…TT, NA…TT Inscribed Circle Diameter 14-125 mm ................................... B118-B121

INCH DESIGN

HJ, HJ+IR Inscribed Circle Diameter 15.875-234.950 mm ....................... B122-B127

Solid needle roller bearings are high-accuracy bearings with maximumload capacity within a limited space for various operating conditions.

Made of carefully selected vacuum-degassed bearing steel or carburizingsteel, the raceway rings are finished with accurate grinding after heattreatment. The outer rings have strong integrated ribs and contain high-accuracy rollers that have the proper crowning finish. Lightweight andextremely strong, the cage guides the rollers accurately and smoothly.

DESIGN AND TYPES

Solid needle roller bearings come in various types ranging from the lightto heavy load use of the metric bearings to heavy load use of inchbearings. Each type is available in series with and without an inner ring,and both series are shown in the same bearing table. Types of solidneedle roller bearings are shown in Table 1, while the composition ofbearing numbers is shown in Table 2.

Among NSK solid needle roller bearings, the RNA, NA49, 59, 69 and 48series follow the international dimension system that conforms to ISOstandards.

HJ, HJ + IR series of inch bearings are widely used globally and conformto the MIL standards of the U.S.A.

RLM and LM types are bearings whose section height is close to that ofdrawn cup needle bearings.

Pages

Page 73: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 91

NSK NEEDLE BEARINGSOLID NEEDLE ROLLER BEARINGS

B 90

Pressure DistributionWhen Mounted with Inclination

Pressure Distributionunder Proper Mounting

Accurate Roller Guide onthe Roller Pitch Diameter

Outer Ring with Strong Integrated RibsHighly Reliable Materialswith Accurate Grinding Finish

Non-Crowned Roller

Proper Roller Crowning

Smooth Guidance of the Cage

Sufficient Retained Lubricant

Cage Finished Surface Treatment afterAccurate Processing WorkHighly Rigid, Wear-Resistant and Lightweight

Crowned Roller

Fig. 1 Features of Solid Needle Roller Bearings

Bearing Code

SeriesWithout

Inner RingWith

Inner Ring

ShaftDiameter (mm)

Description

Metric

Inch

RLM

RNA49

RNA59

RNA69

RNA48

RNAF, RNAFW

RNA…TT

HJ

LM

NA49

NA59

NA69

NA48

NAF, FAFW

NA ... TT

HJ + IR

8 to 110

5 to 90

8 to 490

8 to 440

20 to 160

15 to 140

16 to 110

12 to 95

120 to 415

110 to 380

10 to 100

10 to 90

10 to 120

15.875 to 234.950

9.525 to 203.200

Single-row, section height less than or equal todimensional series 49, for light loads

Single-row, dimensional series 49, for normal loads

Single-row, dimensional series 59, same sectionheight as series 49 with wider width, for heavy loads

Single-row, dimensional series 69, same sectionheight as series 49, wider than series 59, for heavy loads

Single-row, dimensional series 48, smaller sectionheight than series 49, for light to normal loads

Single or double-row, separate type,for normal to heavy loads

With seal

Single-row, section height slightly greater,with wider width series, for heavy loads

Table 1 Bearing Types

Type CodeComposition of Bearing Number Examples

WithoutInner Ring

WithInner Ring

RLM

RNA

RNAF

HJ

LM

NA

NAF

HJ + IR

RLM2520, RLM304020

LM2520, LM304020

RNA4905, RNA6908, RNA4830

NA4905, NA6908, NA4830

RNAF253517

NAF203517

HJ-243316

HJ-243316+IR-202416

Type code, inscribed circle diameter, and widthor code, inscribed circle diameter,outside diameter, and width (expressed in mm)

Type code, dimension series, and bore number(48, 49, 59, 69) (00 ~ 88)

Type code, inscribed circle diameter,outside diameter, and width (expressed in mm)

Type code, bore diameter, outside diameter,and width (expressed in mm)

Type code, hyphen, inscribed circle diameter,outside diameter, and width

(expressed in integers in units of 1/16 inch)

Following HJ bearing number, + inner ring code,hyphen, bore diameter, inner ring raceway diameter,and width (expressed in integers in units of 1/16 inch)

Table 2 Bearing Numbers for Solid Needle Roller Bearings

Remarks For full complement RLM, LM, RNA and NA, the letter "V" is followed by the bearing number.

RNAF and NAF are different from other solid bearings in that they have aseparable inner ring, outer ring, and cage and rollers, which can all becombined to allow the optional radial internal clearance to be chosen. Formost operating conditions, they can be easily mounted.

Bearings with seals are also manufactured; please consult NSK.Typical structure and features of solid needle roller bearings are shown in

Fig. 1.

ACCURACY

All NSK solid needle roller bearings, excluding inch bearings HJ and HJ+ IR, conform to ISO, and dimensional accuracy and rotating accuracy arein accordance with ISO (refer to pages A26 and A27). When highlyaccurate bearings are especially required, bearings in Class 6 or higher arealso available.

Tolerance values for inch bearings HJ and HJ + IR are shown in Table 3.

Tolerances for inscribed Circle Diameter

NSK metric needle roller bearings are primarily manufactured within theinscribed circle diameter tolerance class F6 (refer to Table 4 on page B92).RLM and LM types that have a small section height, however, are whithinF7. Tolerances for the inscribed circle diameter of inch needle bearingsare shown in Table 5 on page B93.

Page 74: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 93

SOLID NEEDLE ROLLER BEARINGS

B 92

Nominal Bore Diameter, d, orNominal Outside Diameter, D

(mm)

Single Plane MeanBore Diameter

Deviation, ddmp

Single Plane MeanOutside DiameterDeviation, dDmp

Inner Ring WidthDeviation,dBs

Outer Ring WidthDeviation,dCs

Radial Runoutof AssembledInner Ring, K ia

Radial Runoutof Assembled

Outer Ring, Kea

over incl high low high low high low high max maxlow

7.938 (5/16)

19.050 (3/4)

30.162 (1 3/16)

50.800 (2)

82.550 (3 1/4)

107.950 (4 1/4)

120.650 (4 3/4)

177.800 (7)

184.150 (7 1/4)

203.200 (8)

260.350 (10 1/4)

19.050 (3/4)

30.162 (1 3/16)

50.800 (2)

82.550 (3 1/4)

107.950 (4 1/4)

120.650 (4 3/4)

177.800 (7)

184.150 (7 1/4)

203.200 (8)

260.350 (10 1/4)

317.500 (12 1/2)

0

0

0

0

0

0

0

0

0

-10

-13

-13

-15

-20

-20

-25

-30

-30

0

0

0

0

0

0

0

0

0

0

-13

-13

-15

-20

-20

-25

-25

-30

-30

-36

+250

+250

+250

+250

+250

+380

+380

+380

+380

+120

+120

+120

+120

+120

+250

+250

+250

+250

0

0

0

0

0

0

0

0

0

0

-130

-130

-130

-130

-130

-130

-130

-130

-130

-130

10

13

15

20

25

25

30

30

40

15

20

25

35

35

45

45

50

50

60

Table 3 Tolerances for Inch Bearings HJ, HJ + IRUnits: pm

Note ddmp, dBs and Kia are found from the dimension category of d, and dDmp, dCs and Kea are from the dimension category of D.

Nominal Inscribed CircleDiameter, Fw (mm)

Deviation (F6) of Minimum Diameter,Fw min , of Roller InscribedCircle Diameter ( 1 ) (pm)

over incl high low

6

10

18

30

50

80

120

180

250

315

400

+ 22

+ 27

+ 33

+ 41

+ 49

+ 58

+ 68

+ 79

+ 88

+ 98

+108

+13

+16

+20

+25

+30

+36

+43

+50

+56

+62

+68

10

18

30

50

80

120

180

250

315

400

500

Table 4 Inscribed Circle Diameter for Metric Solid Needle Roller Bearings

Note (1) When using a cylinder instead of an inner ring, Fw min is the diameterof the cylinder at which the internal clearance is zero in at least oneradial direction. (Fw min is the minimum diameter of each inscribedcircle diameter where deviation is suspected.)

Nominal Inscribed Circle Diameter,Fw (mm)

Deviation (F6) of Minimum Diameter,Fw min , of Roller Inscribed Circle

Diameter ( 1 ) (pm)

over incl high low

―15.875 (5/8)

28.575 (1 1/8)

41.275 (1 5/8)

47.625 (1 7/8)

69.850 (2 3/4)

76.200 (3)

101.600 (4)

114.300 (4 1/2)

152.400 (6)

165.100 (6 1/2)

196.850 (7 3/4)

+43+46+48+51

+53+58+61

+66+69+74

+76+81

+20+23+25+25

+28+28+30

+30+33+33

+36+36

15.875 (5/8)

28.575 (1 1/8)

41.275 (1 5/8)

47.625 (1 7/8)

69.850 (2 3/4)

76.200 (3)

101.600 (4)

114.300 (4 1/2)

152.400 (6)

165.100 (6 1/2)

196.850 (7 3/4)

234.950 (9 1/4)

Table 5 Tolerance of Inscribed Circle Diameter

for Inch Solid Needle Roller Bearings

Note (1) When using a cylinder instead of an inner ring, Fw min is the diameterof the cylinder at which the internal clearance is zero in at least oneradial direction. (Fw min is the minimum diameter of each inscribedcircle diameter where deviation is suspected.)

IT3――2IT3――2

0.4 0.8 1.6

HRC58 to 64Appropriate depthof hardening layerrequired

IT3 IT4―― to ――2 2IT4 IT5―― to ――2 2IT4 IT5―― to ――2 2

―― ――

Housing BoreShaft

Category

Out-of-Roundness Tolerance

Cylindrical Tolerance

Roughness, Ra

Hardness

Raceway Surface Fitting Surface

Table 6 Accuracy and Hardness of Shaft and Housing

Note (1) Please refer to Section 5.2 on page A34 and Section 5.3 on page A35 forfurther details.

APPLICATION

Specifications of Shaft and Housing

The shaft and housing bore should be finished with recommendeddimensional tolerance. Accuracy, surface roughness, and hardness shouldsatisfy the conditions shown in Table 6.

Shaft Inclination

Shaft inclination due to deflection by external force and mounting error ofthe bearing should be the same as or less than the values found in Table 7.

NSK NEEDLE BEARING

IT3 IT4―― to ――2 2

Page 75: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 95

NSK NEEDLE BEARING

Fig. 3 Example of Mounting for RNAF and NAF

Fig. 2 Example of Mounting

SOLID NEEDLE ROLLER BEARINGS

B 94

Bearing Width(mm)

Permissible Inclination(mm /mm)

over incl With cage

25

50

25

50

0.0015

0.0010

0.0005

Table 7 Shaft Inclination

Fitting Tolerance

CodeShaft or Inner Ring Rotation

ShaftHousing

BoreShaft

HousingBore

Outer Ring Rotation

RLM, RNARNAFHJ

LM, NANAFHJ+IR

WithoutInner Ring

WithInner Ring

h5 (Fw ≦ 80)g6 (180 ≧ Fw > 80)f6 (Fw > 180)

H7 N7

H7 g6 N7k5 (d ≦ 50)m5 (d> 50)

g5 (Fw ≦ 80)f6 (180 ≧ Fw > 80)e6 (Fw > 180)

Table 8 Recommended Fittings for Solid Needle Roller BearingsUnits: mm

Remarks For metric needle bearings with an inner ring, if the inner and outer rings are fittedtighter than class k and K, respectively, a bearing with an internal clearance greaterthan CN clearance should be selected.

hcCategory of D/Fw

Nominal InscribedCircle Diameter, Fw

over incl

8

12

22

30

55

12

22

30

55

100

0.150.3

0.20.3

0.30.4

0.30.5

0.5

1.352.8

1.82.8

2.23.2

2.23.6

3.6

D/Fw < 2.0D/Fw ≧ 2.0

D/Fw < 1.59D/Fw ≧ 1.59

D/Fw < 1.48D/Fw ≧ 1.48

D/Fw < 1.34D/Fw ≧ 1.34

Table 9 Abutment and Fillet Dimensions for RNAF and NAFUnits: mm

Fitting

Depending on the application, the outer ring of NSK solid needle rollerbearings is used with either a transitional fit or a tight fit.

Recommended fittings for solid needle roller bearings are shown inTable 8.

Please refer to Tables 5.2 and 5.3 on page A33 to fully consider operatingconditions and choose the appropriate fittings.

For needle bearings without an inner ring, various radial inner clearancesare achieved by selecting the proper shaft tolerance from Table 4.6 on pageA25.

Mounting

Solid needle roller bearings generally require the shaft and housingshoulder to fix the inner and outer rings and prevent them from moving inthe axial direction during operation (Fig. 2).

The unmarked surface of both the inner and outer rings should be placedonto the shaft or housing shoulder when mounting. The diameter of the shaftshoulder should be smaller than the outside diameter of the inner ring.Because the RNAF and NAF types do not have ribs, abutment and filletdimensions should be carefully observed when designing the bearingsurroundings. Examples of mounting, abutment and fillet dimensions areshown in Fig. 3 and Table 9.

Page 76: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 97

NSK NEEDLE BEARINGSOLID NEEDLE ROLLER BEARINGS

B 96

RLM ● LM

RNA ● NA

Inscribed Circle

Diameter 8 - 15 mm

15151515

161617

151717

171719

171919

191920

222222

222222

202020

222222

2323

10121516

121610

101012

151611

121215

162011

121316

162022

81520

121520

1620

4 3005 5006 5507 100

6 1507 9004 700

4 5005 3506 750

8 0508 6506 550

6 1507 3008 700

9 40012 000

7 050

9 3509 150

12 100

11 60015 50016 300

4 0508 100

11 100

8 3009 900

13 600

12 30015 500

3 8004 6005 8006 350

5 4007 4504 350

4 9004 6506 200

7 8008 6006 000

7 6507 1508 950

9 85013 500

6 850

9 1509 950

12 700

13 60017 50020 900

4 80011 70017 400

8 90011 10016 800

14 80020 100

60 00045 00045 00045 000

40 00040 00050 000

36 00036 00036 000

36 00036 00048 000

30 00030 00030 000

30 00030 00038 000

24 00032 00024 000

32 00024 00032 000

24 00024 00024 000

24 00024 00024 000

24 00024 000

―5―5

6――

――7

―78

888

9―9

―1010

101010

101010

101010

――

―12―16

12――

――12

―1611

12.212.215.2

16―11

―1316.2

1620.222

8.215.220.2

12.215.220.2

――

0.00700.00830.0100.011

0.00920.0110.0091

0.00550.00820.0097

0.0120.0130.012

0.00760.0110.014

0.0140.0180.013

0.0140.0160.019

0.0220.0240.027

0.00610.0110.015

0.0130.0160.021

0.0210.026

―0.011―

0.015

0.013――

――

0.014

―0.0180.015

0.0130.0170.021

0.022―

0.017

―0.0240.028

0.0310.0360.040

0.0120.0220.030

0.0220.0270.036

――

RLM81512-1RLM815RLM81516-1

RLM912RLM916

RLM1010RLM101710RLM101712-1

RLM101715RLM101716-1

RLM1212RLM121912RLM121915

RLM121916-1RLM121920-1

RLM1412

RLM1416

RLM1420

RLM158RLM1515RLM1520

RLM152212RLM152215RLM152220

RLM152316-1RLM152320-1

RNA496

RNA497

RNA498

RNA499

RNA4900

RNA5900

RNA6900

―LM81512-1―

LM81516-1

LM91612-1――

――

LM101712-1

―LM101716-1NA498

LM1212LM121912LM121915

LM121916-1―

NA499

―NA4900LM1416

NA5900LM1420NA6900

LM158LM1515LM1520

LM152212LM152215LM152220

――

440560670720

625805470

460545685

820885670

625745885

9551 220

720

955930

1 230

1 1901 5801 660

415825

1 130

8451 0101 390

1 2501 590

390470590650

550760445

500470635

795875615

780730915

1 0101 380

700

9351 0101 300

1 3901 7902 130

4901 1901 770

9051 1401 710

1 5102 050

0.150.150.30.15

0.30.30.15

0.30.30.15

0.30.150.2

0.30.30.3

0.30.30.3

0.30.30.3

0.30.30.3

0.30.30.3

0.30.30.3

0.30.3

8

9

10

12

14

15

Boundary Dimensions(mm)

Fw D C rmin

Basic Load Ratings(N) {kgf}

Cr Cor Cr Cor

BoundaryDimensions

(mm)

d B

Mass (kg)

approxWithout With

Inner Ring Inner Ring

LimitingSpeeds(min-1)

Oil

Bearing Numbers

Without Inner Ring With Inner Ring

RLM RNA49 RNA59 RNA69 LM・NA

Remarks 1. For information on inner rings, refer to page B129.2. If a full complement roller bearing is required, please contact NSK.

φD φd

C

r

r

B

φD φd

C

r

r

B

φD φFw

C

r

φD φFw

C

r

RNARLM

WithoutInner Ring

NALM

WithInner Ring

Page 77: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 99

NSK NEEDLE BEARINGSOLID NEEDLE ROLLER BEARINGS

B 98

RLM ● LM

RNA ● NA

Inscribed Circle

Diameter 16 - 21 mm

242424

2424

222224

242525

252525

25262626

2727

27272727

272828

282828

2929

131616

2022

102015

251620

151720

25131620

1620

10152020

251316

182023

1620

10 10012 90012 800

16 50017 900

5 85011 80011 000

18 20013 60016 200

11 50013 30015 800

19 00010 50012 70016 100

14 30018 300

7 95011 90016 40016 400

19 80010 80014 400

15 70018 20019 300

14 90019 100

11 70014 20016 000

19 50024 500

7 95019 50013 200

25 30015 50021 900

14 30017 20021 500

27 30012 70016 20022 000

17 00023 400

9 15015 40023 20023 200

29 50013 60019 700

21 90023 50028 600

18 50025 400

28 00022 00028 000

22 00028 000

20 00020 00020 000

20 00020 00020 000

20 00020 00020 000

20 00024 00020 00020 000

18 00018 000

18 00018 00018 00018 000

18 00022 00018 000

22 00018 00022 000

17 00017 000

121212

1212

121212

12――

151515

15―――

1515

15151515

1515―

151515

1717

1316.216

20.222

10.220.215.2

25.2――

15.217.220.2

25.2―――

16.220.2

10.215.220.220

25.213―

1820.223

16.220.2

0.0180.0210.024

0.0270.030

0.00800.0160.018

0.0300.0230.029

0.0190.0210.025

0.0320.0200.0240.030

0.0250.031

0.0140.0210.0280.028

0.0350.0210.026

0.0320.0330.039

0.0270.034

0.0270.0320.035

0.0410.045

0.0170.0340.032

0.052――

0.0280.0310.037

0.047―――

0.0390.048

0.0250.0370.0490.048

0.0610.035―

0.0510.0550.064

0.0420.053

RLM1616

RLM1620

RLM1710RLM1720RLM172415

RLM172425RLM172516-1RLM172520-1

RLM1815RLM1817RLM1820

RLM1825

RLM182616-1RLM182620-1

RLM1916RLM1920

RLM2010RLM2015RLM2020RLM2020

RLM2025

RLM202816-1

RLM202820

RLM2116RLM2120

RNA4901

RNA49/14

RNA4902

RNA5901

RNA5902

RNA6901

RNA6902

NA4901LM1616NA5901

LM1620NA6901

LM1710LM1720LM172415

LM172425――

LM1815LM1817LM1820

LM1825―――

LM1916LM1920

LM2010LM2015LM2020LM2020-1

LM2025NA4902―

NA5902LM202820NA6902

LM2116LM2120

1 0301 3101 310

1 6801 830

5951 2001 120

1 8501 3901 650

1 1701 3501 610

1 9401 0701 3001 640

1 4601 870

8101 2201 6701 670

2 0101 1001 470

1 6001 8601 960

1 5201 950

1 1901 4501 630

1 9902 500

8101 9901 350

2 5801 5802 230

1 4501 7502 190

2 7801 2901 6502 250

1 7302 380

9301 5702 3702 370

3 0001 3902 010

2 2402 4002 920

1 8802 590

0.30.30.3

0.30.3

0.30.30.5

0.50.30.3

0.50.50.5

0.50.30.30.3

0.50.5

0.50.50.50.5

0.50.30.3

0.30.50.3

0.50.5

16

17

18

19

20

21

Boundary Dimensions(mm)

Fw D C rmin

Basic Load Ratings(N) {kgf}

Cr Cor Cr Cor

BoundaryDimensions

(mm)

d B

Mass (kg)

approxWithout With

Inner Ring Inner Ring

LimitingSpeeds(min-1)

Oil

Bearing Numbers

Without Inner Ring With Inner Ring

RLM RNA49 RNA59 RNA69 LM・NA

Remarks 1. For information on inner rings, refer to page B129.2. If a full complement roller bearing is required, please contact NSK.

φD φFw

C

r

φD φFw

C

r

φD φd

C

r

r

B

φD φd

C

r

r

B

RNARLM

WithoutInner Ring

NALM

WithInner Ring

Page 78: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 101

NSK NEEDLE BEARINGSOLID NEEDLE ROLLER BEARINGS

B 100

RLM ● LM

RNA ● NA

Inscribed Circle

Diameter 22 - 29 mm

292929

303030

3030

31313232

323232

333333

373737

34

353537

37393939

38383838

152025

131618

2023

20281620

122025

162025

172330

20

202520

30172330

20203030

12 90017 70021 300

11 60015 60016 800

20 00020 700

18 20023 70016 10020 700

10 30018 80022 700

16 80021 50025 900

19 70027 80036 500

21 400

19 90023 90024 200

34 00022 40028 30037 000

25 10023 40035 50032 000

17 50026 40033 500

15 40019 80024 800

27 20032 500

28 10039 50021 30029 200

13 70029 70037 500

22 60031 00039 500

22 90035 50050 500

31 000

33 00042 00033 500

52 50030 50041 50058 500

36 00036 50055 50054 000

16 00016 00016 000

20 00016 00020 000

16 00020 000

15 00015 00015 00015 000

14 00014 00014 000

14 00014 00014 000

18 00018 00018 000

13 000

12 00012 00012 000

12 00015 00015 00015 000

12 00012 00012 00012 000

171717

171717

1717

20202020

202020

―2020

202020

22

222222

22222222

25252525

15.220.225.2

1316.218

20.223

20.228.216.220.2

12.220.225.2

―20.225.2

172330

16.2

20.225.220.2

30.2172330

20.22030.230.2

0.0230.0300.038

0.0230.0280.034

0.0350.041

0.0330.0460.0300.038

0.0200.0340.042

0.0320.0400.050

0.0550.0890.098

0.041

0.0380.0470.050

0.0750.0560.0910.096

0.0520.0520.0780.078

0.0410.0540.068

0.0380.0450.055

0.0600.068

0.0540.0760.0480.060

0.0360.0610.076

―0.0680.085

0.0770.120.14

0.065

0.0620.0920.087

0.130.0860.1350.15

0.0790.0780.1180.117

RLM2215RLM2220RLM2225

RLM223016

RLM223020

RLM2420RLM2428RLM243216RLM243220

RLM2512RLM2520RLM2525

RLM253316-1RLM253320RLM253325

RLM2620

RLM2820RLM2825RLM283720

RLM283730

RLM2920RLM293820-1RLM2930RLM293830

RNA4903

RNA4904

RNA49/22

RNA5903

RNA5904

RNA59/22

RNA6903

RNA6904

RNA69/22

LM2215LM2220LM2225

NA4903LM223016NA5903

LM223020NA6903

LM2420LM2428LM243216LM243220

LM2512LM2520LM2525

―LM253320LM253325

NA4904NA5904NA6904

LM2620

LM2820LM2825LM283720

LM283730NA49/22NA59/22NA69/22

LM2920LM293820-1LM2930LM293830

1 3101 8102 170

1 1901 5901 720

2 0302 110

1 8602 4201 6502 110

1 0501 9202 310

1 7102 1902 640

2 0102 8303 700

2 180

2 0302 4402 460

3 4502 2902 8903 800

2 5602 3903 6003 250

1 7802 6903 400

1 5702 0202 530

2 7803 300

2 8704 0002 1702 980

1 4003 0503 850

2 3003 1504 050

2 3403 6505 150

3 200

3 3504 2503 450

5 3503 1504 2006 000

3 6503 7005 6505 550

0.50.50.5

0.30.50.3

0.50.3

0.50.50.50.5

0.50.50.5

0.50.50.5

0.30.30.3

0.5

0.50.30.5

0.50.30.30.3

0.50.50.50.3

22

24

25

26

28

29

Boundary Dimensions(mm)

Fw D C rmin

Basic Load Ratings(N) {kgf}

Cr Cor Cr Cor

BoundaryDimensions

(mm)

d B

Mass (kg)

approxWithout With

Inner Ring Inner Ring

LimitingSpeeds(min-1)

Oil

Bearing Numbers

Without Inner Ring With Inner Ring

RLM RNA49 RNA59 RNA69 LM・NA

Remarks 1. For information on inner rings, refer to page B129.2. If a full complement roller bearing is required, please contact NSK.

φD φFw

C

r

φD φFw

C

r

φD φd

C

r

r

B

φD φd

C

r

r

B

RNARLM

WithoutInner Ring

NALM

WithInner Ring

Page 79: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 103

NSK NEEDLE BEARINGSOLID NEEDLE ROLLER BEARINGS

B 102

RLM ● LM

RNA ● NA

Inscribed Circle

Diameter 30 - 38 mm

373737

404040

424242

4242

454545

424245

4545

474747

474747

48484848

152025

202530

172330

2030

172330

203020

2530

172330

203030

15202530

14 80020 30024 500

25 00030 00035 000

21 40030 00039 500

25 80036 500

22 20031 50041 000

22 30031 00027 500

33 00038 500

23 90033 50044 000

28 20039 50039 500

20 90029 00035 00041 000

23 00034 50044 000

36 00046 00056 000

26 80041 50059 000

38 00059 000

28 70044 50063 500

41 00063 50042 500

54 50066 000

32 50050 50071 500

45 00069 50069 500

30 50047 00060 00073 000

12 00012 00012 000

12 00012 00012 000

14 00014 00014 000

11 00011 000

13 00013 00013 000

10 00010 00010 000

10 00010 000

12 00012 00012 000

9 5009 5009 500

9 0009 0009 0009 000

252525

252525

252525

2828

282828

303030

3030

303030

323232

32323232

15.220.225.2

20.225.230.2

172330

20.230.2

172330

20.230.220.2

25.230.2

172330

20.330.330

15.320.325.330.3

0.0300.0400.050

0.0600.0750.090

0.0630.100.11

0.0640.096

0.0760.110.13

0.0460.0700.069

0.0860.10

0.0720.110.13

0.0720.110.11

0.0560.0740.0930.11

0.0550.0730.092

0.0930.120.14

0.0910.140.16

0.0900.14

0.0990.1450.175

0.0850.130.11

0.1350.16

0.1050.150.19

0.1150.1750.17

0.0940.1250.160.195

RLM3015RLM3020RLM3025

RLM304020RLM304025RLM304030

RLM3220RLM3230

RLM3520RLM3530RLM354520

RLM354525RLM354530

RLM3720RLM3730RLM374730-1

RLM3815RLM3820RLM3825RLM3830

RNA4905

RNA49/28

RNA4906

RNA5905

RNA59/28

RNA5906

RNA6905

RNA69/28

RNA6906

LM3015LM3020LM3025

LM304020LM304025LM304030

NA4905NA5905NA6905

LM3220LM3230

NA49/28NA59/28NA69/28

LM3520LM3530LM354520

LM354525LM354530

NA4906NA5906NA6906

LM3720LM3730LM374730-1

LM3815LM3820LM3825LM3830

1 5002 0702 490

2 5503 1003 600

2 1803 1004 050

2 6303 700

2 2703 2004 200

2 2703 2002 800

3 4003 950

2 4303 4504 500

2 8804 0504 050

2 1302 9603 6004 150

2 3403 5504 500

3 6504 6505 700

2 7404 2506 050

3 9006 050

2 9304 5506 450

4 2006 4504 350

5 5506 750

3 3005 1507 300

4 5507 1007 100

3 1504 8006 1007 450

0.50.50.5

0.50.50.5

0.30.30.3

0.50.5

0.30.30.3

0.50.50.5

0.50.5

0.30.30.3

0.60.60.6

0.60.60.60.6

30

32

35

37

38

Boundary Dimensions(mm)

Fw D C rmin

Basic Load Ratings(N) {kgf}

Cr Cor Cr Cor

BoundaryDimensions

(mm)

d B

Mass (kg)

approxWithout With

Inner Ring Inner Ring

LimitingSpeeds(min-1)

Oil

Bearing Numbers

Without Inner Ring With Inner Ring

RLM RNA49 RNA59 RNA69 LM・NA

Remarks 1. For information on inner rings, refer to page B129.2. If a full complement roller bearing is required, please contact NSK.

φD φFw

C

r

φD φFw

C

r

φD φd

C

r

r

B

φD φd

C

r

r

B

RNARLM

WithoutInner Ring

NALM

WithInner Ring

Page 80: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 105

NSK NEEDLE BEARINGSOLID NEEDLE ROLLER BEARINGS

B 104

RLM ● LM

RNA ● NA

Inscribed Circle

Diameter 40 - 50 mm

505050

505052

5252

525255

5555

5353

55555558

5757

626262

606062

626262

6265

152020

253020

2736

203020

2736

2030

20253020

2030

223040

203020

252530

3522

21 40029 70029 700

36 00042 00029 900

40 50056 000

32 00044 50030 500

41 50057 500

32 00044 500

31 00037 50043 50034 000

33 00046 500

39 00054 50072 000

33 00046 50035 500

43 00043 00050 000

66 50043 000

32 00049 00049 000

62 50076 50045 000

66 000101 000

54 50084 50047 500

69 500106 000

55 00084 500

53 50068 50083 50056 000

59 50091 500

61 50095 000

137 000

60 50094 00060 500

77 50077 50094 500

136 00072 000

9 0009 0009 000

9 0009 000

10 000

10 00010 000

8 5008 500

10 000

10 00010 000

8 0008 000

8 0008 0008 0009 500

7 5007 500

9 0009 0009 000

7 1007 1007 100

7 1007 1007 100

7 1008 500

353535

353532

3232

――35

3535

3838

404040―

4242

404040

424242

424542

45―

15.320.320

25.330.320

2736

――20

2736

2030

20.325.330.3―

2030

223040

20.330.320.3

25.32530.3

35―

0.0580.0780.125

0.0970.120.092

0.150.17

0.0810.120.11

0.1750.20

0.0820.125

0.0860.110.130.12

0.0890.14

0.150.230.265

0.0980.150.12

0.1550.1550.18

0.210.17

0.0920.1250.125

0.1550.190.16

0.240.29

――

0.17

0.250.315

0.1320.199

0.140.170.21―

0.120.22

0.240.3550.435

0.190.280.21

0.2650.220.315

0.31―

RLM4015RLM4020RLM405020-1

RLM4025RLM4030

RLM425220-1RLM425230-1

RLM435320-1RLM435330-1

RLM4520RLM4525RLM4530

RLM475720-1RLM475730-1

RLM5020RLM5030RLM506220

RLM506225RLM506225RLM506230

RLM506235-1

RNA49/32

RNA4907

RNA49/38

RNA4908

RNA49/42

RNA59/32

RNA5907

RNA5908

RNA69/32

RNA6907

RNA6908

LM4015LM4020LM405020-1

LM4025LM4030NA49/32

NA59/32NA69/32

――

NA4907

NA5907NA6907

LM435320-1LM435330-1

LM4520LM4525LM4530―

LM475720-1LM475730-1

NA4908NA5908NA6908

LM5020LM5030LM506220

LM506225LM506225-1LM506230

LM506235-1―

2 1803 0503 050

3 6504 2503 050

4 1005 700

3 2504 5503 100

4 2005 850

3 2504 550

3 1503 8004 4503 500

3 3504 700

3 9505 5507 350

3 3504 7503 600

4 4004 4005 100

6 8004 400

3 3005 0005 000

6 4007 8004 600

6 75010 300

5 6008 6004 800

7 10010 900

5 6008 600

5 5007 0008 5005 700

6 0509 350

6 3009 700

13 900

6 1509 5506 150

7 9007 9009 600

13 9007 300

0.60.60.6

0.60.60.6

0.60.6

0.30.30.6

0.60.6

0.30.3

0.60.60.60.6

0.30.3

0.60.60.6

0.60.60.6

0.60.60.6

0.60.6

40

42

43

45

47

48

50

Boundary Dimensions(mm)

Fw D C rmin

Basic Load Ratings(N) {kgf}

Cr Cor Cr Cor

BoundaryDimensions

(mm)

d B

Mass (kg)

approxWithout With

Inner Ring Inner Ring

LimitingSpeeds(min-1)

Oil

Bearing Numbers

Without Inner Ring With Inner Ring

RLM RNA49 RNA59 RNA69 LM・NA

Remarks 1. For information on inner rings, refer to page B129.2. If a full complement roller bearing is required, please contact NSK.

φD φFw

C

r

φD φFw

C

r

φD φd

C

r

r

B

φD φd

C

r

r

B

RNARLM

WithoutInner Ring

NALM

WithInner Ring

Page 81: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 107

SOLID NEEDLE ROLLER BEARINGS

B 106

RLM ● LM

RNA ● NA

Inscribed Circle

Diameter 52 - 73 mm

686868

656567

67686870

727272

707272

727275

808080

7882

828285

8585

88

909090

9090

223040

304020

25253522

223040

402530

354022

253445

3525

253525

3445

25

253445

2535

41 00057 00076 000

49 00064 00038 000

46 00048 00063 50045 000

42 50059 50079 000

66 00050 00058 000

65 50073 00048 000

53 50073 50093 500

67 50060 500

56 50078 00056 000

77 50098 000

63 000

58 50081 000

103 000

64 50088 500

67 500104 000149 000

104 000146 000

68 000

87 00092 500

132 00078 000

73 500113 000163 000

156 00099 500

120 000

142 000162 000

87 500

87 500133 000181 000

151 000105 000

112 000169 000

95 500

145 000197 000

113 000

103 000157 000213 000

117 000177 000

8 0008 0008 000

6 3006 3006 300

6 3006 3006 3007 500

7 1007 1007 100

6 0006 0006 000

6 0006 0007 100

6 7006 7006 700

5 3006 300

5 0005 0006 300

6 3006 300

6 000

5 6005 6005 600

4 8004 800

454545

454545

455050―

505050

505550

5550―

555555

――

606060

6060

656565

―65

223040

30.340.320.3

25.32535―

223040

40.32530.3

3540.3―

253445

――

253525

3445

253445

―35

0.190.270.335

0.160.2150.13

0.1650.180.250.18

0.180.250.32

0.2350.1750.21

0.2450.280.20

0.260.370.475

0.290.27

0.230.3250.28

0.4150.485

0.31

0.320.480.53

0.3050.43

0.280.390.495

0.340.460.25

0.320.270.37―

0.2950.4050.53

0.5050.260.41

0.370.545―

0.400.560.73

――

0.390.540.435

0.6250.76

0.4650.6750.79

―0.67

RLM5530RLM5540RLM556720

RLM556725RLM556825-1RLM556835-1

RLM6040RLM607225RLM607230

RLM607235-1RLM607240

RLM657835-1

RLM688225-1RLM688235-1

RLM739025-1RLM739035-1

RNA4909

RNA49/48

RNA4910

RNA49/52

RNA4911

RNA49/58

RNA4912

RNA49/62

RNA4913

RNA5909

RNA5910

RNA5911

RNA5912

RNA5913

RNA6909

RNA6910

RNA6911

RNA6912

RNA6913

NA4909NA5909NA6909

LM5530LM5540LM556720

LM556725LM556825-1LM556835-1―

NA4910NA5910NA6910

LM6040LM607225-1LM607230

LM607235-1LM607240―

NA4911NA5911NA6911

――

LM688225-1LM688235-1NA4912

NA5912NA6912

NA4913NA5913NA6913

―LM739035-1

4 1505 8007 750

5 0006 5503 850

4 7004 9006 5004 600

4 3506 0508 050

6 7505 1005 900

6 7007 4504 900

5 4507 5009 550

6 9006 200

5 7507 9505 700

7 90010 000

6 450

5 9508 250

10 500

6 5509 000

6 90010 60015 200

10 60014 9006 900

8 8509 450

13 5007 950

7 50011 50016 600

15 90010 10012 300

14 40016 6008 900

8 95013 60018 500

15 40010 700

11 50017 3009 750

14 80020 100

11 500

10 50016 00021 800

12 00018 000

0.60.60.6

0.60.60.6

0.60.50.30.6

0.60.60.6

0.60.30.6

0.30.60.6

111

0.61

0.60.61

11

1

111

11

52

55

58

60

63

65

68

70

72

73

Boundary Dimensions(mm)

Fw D C rmin

Basic Load Ratings(N) {kgf}

Cr Cor Cr Cor

BoundaryDimensions

(mm)

d B

Mass (kg)

approxWithout With

Inner Ring Inner Ring

LimitingSpeeds(min-1)

Oil

Bearing Numbers

Without Inner Ring With Inner Ring

RLM RNA49 RNA59 RNA69 LM・NA

Remarks 1. For information on inner rings, refer to page B129.2. If a full complement roller bearing is required, please contact NSK.

NSK NEEDLE BEARING

φD φFw

C

r

φD φFw

C

r

φD φd

C

r

r

B

φD φd

C

r

r

B

RNARLM

WithoutInner Ring

NALM

WithInner Ring

Page 82: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

φD φFw

C

r

φD φFw

C

r

B 109

NSK NEEDLE BEARINGSOLID NEEDLE ROLLER BEARINGS

B 108

RLM ● LM

RNA ● NA

Inscribed Circle

Diameter 75 - 115 mm

929295

9595

100

100100

105105105

105105

110110110110

115115

120120120120

125125125

130130130

130130

140140

253530

253530

4054

253035

4054

25304054

2630

26354663

354663

303540

4663

4054

64 00088 00083 500

62 50086 00080 500

107 000143 000

79 00084 000

109 000

112 000149 000

82 50087 500

116 000155 000

85 50095 500

86 000104 000138 000174 000

108 000143 000181 000

101 000111 000134 000

148 000187 000

144 000193 000

118 000177 000148 000

125 000189 000143 000

206 000298 000

143 000155 000215 000

222 000325 000

154 000166 000239 000345 000

164 000189 000

168 000214 000310 000415 000

228 000330 000445 000

213 000242 000305 000

350 000470 000

295 000430 000

4 8004 8005 600

4 5004 5005 300

5 3005 300

4 0005 0004 000

5 0005 000

4 0004 5004 5004 500

3 6004 300

3 6004 0004 0004 000

4 0004 0004 000

3 2003 8003 200

3 8003 800

3 6003 600

―――

707070

7070

757575

7575

80808080

85―

90858585

909090

―95―

9595

100100

―――

253530

4054

253035

4054

25304054

26―

26354663

354663

―35―

4663

4054

0.3150.440.46

0.290.4050.47

0.690.89

0.420.500.59

0.7350.96

0.440.530.750.99

0.480.57

0.5050.680.991.2

0.721.051.35

0.6350.740.85

1.151.5

1.151.8

―――

0.520.730.74

1.051.4

0.670.790.93

1.11.5

0.700.8351.151.55

0.75―

0.811.251.752.25

1.351.852.45

―1.4―

2.02.65

1.952.85

RLM759225-1RLM759235-1

RLM809525-1RLM809535-1

RLM8510525-1

RLM8510535-1

RLM9011025-1

RLM9511526-1

RLM10012026-1

RLM11013030-1

RLM11013040-1

RNA49/68

RNA4914

RNA4915

RNA4916

RNA49/82

RNA4917

RNA4918

RNA4919

RNA4920

RNA5914

RNA5915

RNA5916

RNA5917

RNA5918

RNA5919

RNA5920

RNA6914

RNA6915

RNA6916

RNA6917

RNA6918

RNA6919

―――

LM809525-1LM809535-1NA4914

NA5914NA6914

LM8510525-1NA4915LM8510535-1

NA5915NA6915

LM9011025-1NA4916NA5916NA6916

LM9511526-1―

LM10012026-1NA4917NA5917NA6917

NA4918NA5918NA6918

―NA4919―

NA5919NA6919

NA4920NA5920

6 5508 9508 550

6 4008 8008 200

10 90014 500

8 1008 600

11 100

11 40015 200

8 4008 950

11 90015 900

8 7009 750

8 75010 60014 10017 800

11 00014 60018 400

10 30011 40013 700

15 10019 100

14 70019 700

12 00018 10015 100

12 80019 20014 600

21 00030 500

14 60015 80021 900

22 70033 000

15 70017 00024 40035 500

16 70019 300

17 10021 80031 50042 500

23 30033 50045 000

21 80024 70031 500

35 50048 000

30 00043 500

111

111

11

111

11

1111

11

11.11.11.1

1.11.11.1

11.11

1.11.1

1.11.1

75

80

85

90

95

100

105

110

115

Boundary Dimensions(mm)

Fw D C rmin

Basic Load Ratings(N) {kgf}

Cr Cor Cr Cor

BoundaryDimensions

(mm)

d B

Mass (kg)

approxWithout With

Inner Ring Inner Ring

LimitingSpeeds(min-1)

Oil

Bearing Numbers

Without Inner Ring With Inner Ring

RLM RNA49 RNA59 RNA69 LM・NA

Remarks 1. For information on inner rings, refer to page B129.2. If a full complement roller bearing is required, please contact NSK.

φD φd

C

r

r

B

φD φd

C

r

r

B

RNARLM

WithoutInner Ring

NALM

WithInner Ring

Page 83: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 111

NSK NEEDLE BEARINGSOLID NEEDLE ROLLER BEARINGS

B 110

RNA ● NA

Inscribed Circle Diameter 120 - 265 mm

140

150150

150

165165

165

180180

175

190190

190210200

220215230

225250240

260250280

270300300320

30

4054

30

4560

35

5067

35

5067

406040

604560

456950

695080

50806080

99 500

149 000200 000

105 000

192 000253 000

127 000

228 000299 000

133 000

235 000310 000

180 000315 000184 000

325 000224 000340 000

230 000400 000268 000

415 000274 000525 000

286 000545 000375 000590 000

214 000

315 000460 000

238 000

395 000565 000

315 000

515 000725 000

340 000

545 000775 000

440 000645 000465 000

695 000540 000745 000

565 000940 000705 000

1 000 000740 000

1 140 000

805 0001 230 0001 070 0001 400 000

3 400

3 2003 200

3 200

3 0003 000

2 800

2 8002 800

2 600

2 6002 600

2 4002 4002 200

2 2002 2002 200

2 0002 0001 900

1 9001 8001 900

1 7001 7001 5001 600

110

110110

120

120120

130

130130

140

140140

150150160

160170170

180180190

190200200

220220240240

0.67

1.251.95

0.71

1.92.7

0.92

2.33.3

0.98

2.453.55

1.63.91.75

4.12.554.3

2.656.23.2

6.453.359.7

3.65105.45

11.5

1.1

2.13.05

1.15

2.94.05

1.8

4.05.55

1.9

4.256.0

2.756.252.95

6.64.06.95

4.2105.6

10.55.9

15

6.4515.51017.5

RNA4822

RNA4824

RNA4826

RNA4828

RNA4830

RNA4832

RNA4834

RNA4836

RNA4838

RNA4840

RNA4844

RNA4848

RNA4922

RNA4924

RNA4926

RNA4928

RNA4930

RNA4932

RNA4934

RNA4936

RNA4938

RNA4940

RNA4944

RNA4948

RNA5922

RNA5924

RNA5926

RNA5928

NA4822

NA4922NA5922

NA4824

NA4924NA5924

NA4826

NA4926NA5926

NA4828

NA4928NA5928

NA4830NA4930NA4832

NA4932NA4834NA4934

NA4836NA4936NA4838

NA4938NA4840NA4940

NA4844NA4944NA4848NA4948

10 100

15 20020 300

10 700

19 60025 800

12 900

23 20030 500

13 600

24 00031 500

18 30032 00018 700

33 50022 90034 500

23 50041 00027 300

42 00027 90053 500

29 10055 50038 50060 500

21 900

32 50047 000

24 300

40 50058 000

32 000

52 50074 000

35 000

55 50079 000

45 00066 00047 000

71 00055 00076 000

58 00096 00072 000

102 00075 500

116 000

82 000125 000109 000142 000

1

1.11.1

1

1.11.1

1.1

1.51.5

1.1

1.51.5

1.121.1

21.12

1.121.5

21.52.1

1.52.122.1

120

125

130

135

145

150

155

160

165170175

180185190

195205210

215220225

240245265

Boundary Dimensions(mm)

Fw D B, C rmin

Basic Load Ratings(N) {kgf}

Cr Cor Cr Cor

BoundaryDimensions

(mm)

d

Mass (kg)

approxWithout With

Inner Ring Inner Ring

LimitingSpeeds(min-1)

Oil

Bearing Numbers

Without Inner Ring With Inner Ring

RNA48 RNA49 RNA59 NA

Remarks 1. For information on inner rings, refer to page B129.2. If a full complement roller bearing is required, please contact NSK.

φD φFw

C

r

RNA

φD φd

C

r

r

NA

B

Page 84: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 113

NSK NEEDLE BEARINGSOLID NEEDLE ROLLER BEARINGS

B 112

RNA ● NA

Inscribed Circle Diameter 285 - 490 mm

320360350

380380420

400440420

460440480

480520540

560600

60100

69

10080

118

80118

80

11880

118

100140140

140160

395 000870 000510 000

905 000660 000

1 150 000

675 0001 190 000

690 000

1 240 000705 000

1 280 000

1 030 0001 550 0001 600 000

1 660 0001 980 000

1 160 0001 910 0001 390 000

2 050 0001 810 0002 630 000

1 900 0002 820 0001 990 000

3 000 0002 080 0003 200 000

2 940 0003 750 0004 000 000

4 250 0004 750 000

1 4001 4001 300

1 3001 2001 200

1 1001 1001 100

1 1001 0001 000

1 000950900

900850

260260280

280300300

320320340

340360360

380380400

420440

5.919.59.5

20.51330

13.53214

33.51535.5

25.550.552.5

54.581.5

1129.515.5

312248.5

23.551.524.5

542657

42.585.589

92.5125

RNA4852

RNA4856

RNA4860

RNA4864

RNA4868

RNA4872

RNA4876

RNA4952

RNA4956

RNA4960

RNA4964

RNA4968

RNA4972

RNA4976RNA4980

RNA4984RNA4988

NA4852NA4952NA4856

NA4956NA4860NA4960

NA4864NA4964NA4868

NA4968NA4872NA4972

NA4876NA4976NA4980

NA4984NA4988

40 00088 50052 000

92 50067 500

117 000

69 000122 00070 500

126 00072 000

130 000

105 000158 000164 000

170 000202 000

118 000194 000142 000

209 000185 000269 000

194 000288 000203 000

305 000212 000325 000

299 000385 000410 000

435 000485 000

22.12

2.12.13

2.132.1

32.13

2.144

44

285290305

310330340

350360370

380390400

415430450

470490

Boundary Dimensions(mm)

Fw D B, C rmin

Basic Load Ratings(N) {kgf}

Cr Cor Cr Cor

BoundaryDimensions

(mm)

d

Mass (kg)

approxWithout With

Inner Ring Inner Ring

LimitingSpeeds(min-1)

Oil

Bearing Numbers

Without Inner Ring With Inner Ring

RNA48 RNA49 RNA59 NA

Remarks 1. For information on inner rings, refer to page B129.2. If a full complement roller bearing is required, please contact NSK.

φD φFw

C

r

RNA

φD φd

C

r

r

NA

B

Page 85: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 115

NSK NEEDLE BEARINGSOLID NEEDLE ROLLER BEARINGS

B 114

Single-Row,RNAF

Without Inner Ring

Double-Row,RNAFW

Without Inner Ring

Single-Row,NAF

With Inner Ring

Double-Row,NAFW

With Inner Ring

Inscribed Circle

Diameter 10 - 30 mm

1720

22

222226

2323

242428

2525

26263030

28283232

30303535

35353737

4040

40404242

1012

12

132012

1320

132012

1320

13201224

13261224

13261632

17261632

1632

17261632

3 9507 700

9 150

8 05011 400

9 850

8 40012 100

8 80012 60010 500

10 20013 100

9 45013 60011 70020 100

9 70016 60012 20020 900

10 30017 60016 60029 400

14 80019 40018 70032 000

20 20034 500

18 70024 00022 20038 000

4 3006 650

8 650

9 75015 200

9 800

10 50016 800

11 30018 00010 900

14 00019 300

12 90020 50013 00026 000

13 70027 50014 10028 200

15 30030 50019 50040 500

25 50036 00023 50047 000

26 80053 500

31 50043 00031 00062 000

45 00048 000

38 000

32 00032 00032 000

28 00028 000

26 00026 00028 000

26 00026 000

24 00024 00024 00024 000

20 00020 00022 00022 000

19 00019 00020 00020 000

17 00017 00017 00017 000

15 00015 000

14 00014 00014 00014 000

――

101010

――

121212

――

――――

151515―

17171717

20202020

――

25252525

――

132012

――

132012

――

――――

132612―

13261632

17261632

――

17261632

0.0100.018

0.021

0.0190.0300.027

0.0210.032

0.0220.0340.032

0.0220.035

0.0240.0370.0360.072

0.0260.0510.0380.076

0.0280.0560.0610.12

0.0540.0800.0600.12

0.0670.13

0.0640.0960.0690.14

――

0.0270.0420.034

――

0.0310.0480.040

――

――――

0.0400.0790.050―

0.0440.0870.0800.16

0.0770.1150.0820.16

――

0.0920.140.0950.19

RNAF 101710RNAF 102012

RNAF 122212

RNAF 142213RNAFW142220RNAF 142612

RNAF 152313RNAFW152320

RNAF 162413RNAFW162420RNAF 162812

RNAF 172513RNAFW172520

RNAF 182613RNAFW182620RNAF 183012RNAFW183024

RNAF 202813RNAFW202826RNAF 203212RNAFW203224

RNAF 223013RNAFW223026RNAF 223516RNAFW223532

RNAF 253517RNAFW253526RNAF 253716RNAFW253732

RNAF 284016RNAFW284032

RNAF 304017RNAFW304026RNAF 304216RNAFW304232

――

NAF 102213NAFW 102220NAF 102612

――

NAF 122413NAFW 122420NAF 122812

――

――――

NAF 152813NAFW 152826NAF 153212

NAF 173013NAFW 173026NAF 173516NAFW 173532

NAF 203517NAFW 203526NAF 203716NAFW 203732

――

NAF 254017NAFW 254026NAF 254216NAFW 254232

405785

935

8201 1601 010

8601 230

8951 2901 070

1 0401 340

9651 3801 1902 050

9901 6901 2502 140

1 0501 8001 7002 990

1 5101 9701 9103 250

2 0603 550

1 9102 4502 2703 900

435680

885

9951 5501 000

1 0701 710

1 1501 8401 120

1 4201 970

1 3102 0901 3202 650

1 4002 8001 4402 880

1 5603 1001 9804 100

2 6003 6502 3904 800

2 7305 450

3 2004 4003 1506 300

0.30.3

0.3

0.30.30.3

0.30.3

0.30.30.3

0.30.3

0.30.30.30.3

0.30.30.30.3

0.30.30.30.3

0.30.30.30.3

0.30.3

0.30.30.30.3

10

12

14

15

16

17

18

20

22

25

28

30

))

))

((((

Boundary Dimensions(mm)

Fw D C rmin

Basic Load Ratings(N) {kgf}

Cr Cor Cr Cor

BoundaryDimensions

(mm)

d B

Mass (kg)

approxWithout With

Inner Ring Inner Ring

LimitingSpeeds(min-1)

Oil

Bearing Numbers

Without Inner Ring

Bearing Numbers

With Inner Ring

Remarks For information on inner rings, refer to page B129.

φFwφD

Cr

φFwφD

Cr

φD φd

C

r

r

B

φD φd

C

r

r

B

RNAFWRNAF

WithoutInner Ring

NAFWNAF

WithInner Ring

Page 86: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 117

NSK NEEDLE BEARINGSOLID NEEDLE ROLLER BEARINGS

B 116

454545

4747

50505555

55556262

62626565

68687272

7878

8585

9090

9595

100100

105

110115120

131726

1632

17342040

17342040

20402040

20402040

2040

3060

3060

3060

3060

30

303030

14 90020 50025 600

22 70039 000

21 00036 00032 50055 500

21 60037 00034 00058 000

26 90046 00038 50066 000

27 50047 00040 00068 500

41 50071 000

61 000104 000

63 000108 000

65 000112 000

69 000119 000

71 000

70 00069 50075 500

24 60037 00049 000

33 50066 500

40 00080 00049 50099 500

43 00085 50055 000

110 000

59 000118 000

67 500135 000

62 500125 000

73 000146 000

78 000156 000

132 000263 000

140 000281 000

151 000300 000

166 000335 000

176 000

177 000177 000201 000

12 00012 00012 000

12 00012 000

10 00010 00010 00010 000

9 0009 0009 5009 500

8 0008 0008 5008 500

7 5007 5007 5007 500

6 7006 700

6 3006 300

6 0006 000

5 6005 600

5 0005 000

4 800

4 5004 3004 000

303030

3030

35353535

40404040

4545――

50504545

5050

5555

6060

6565

7070

75

808590

131726

1632

17342040

17342040

2040――

20402040

2040

3060

3060

3060

3060

30

303030

0.0530.0730.105

0.0780.16

0.0840.1650.150.295

0.0920.180.1650.325

0.140.280.1750.36

0.1650.340.2250.455

0.2650.535

0.4950.99

0.531.05

0.5751.15

0.601.2

0.625

0.6650.6950.73

0.0780.1050.155

0.110.22

0.120.240.1950.385

0.1350.2650.2150.43

0.1950.395――

0.230.4650.3450.695

0.400.80

0.711.4

0.7651.5

0.8251.65

0.871.7

0.915

0.971.01.05

RNAF 354513RNAF 354517RNAFW354526

RNAF 354716RNAFW354732

RNAF 405017RNAFW405034RNAF 405520RNAFW405540

RNAF 455517RNAFW455534RNAF 456220RNAFW456240

RNAF 506220RNAFW506240RNAF 506520RNAFW506540

RNAF 556820RNAFW556840RNAF 557220RNAFW557240

RNAF 607820RNAFW607840

RNAF 658530RNAFW658560

RNAF 709030RNAFW709060

RNAF 759530RNAFW759560

RNAF 8010030RNAFW8010060

RNAF 8510530

RNAF 9011030RNAF 9511530RNAF 10012030

NAF 304513NAF 304517NAFW 304526

NAF 304716NAFW 304732

NAF 355017NAFW 355034NAF 355520NAFW 355540

NAF 405517NAFW 405534NAF 406220NAFW 406240

NAF 456220NAFW 456240

――

NAF 506820NAFW 506840NAF 457220NAFW 457240

NAF 507820NAFW 507840

NAF 558530NAFW 558560

NAF 609030NAFW 609060

NAF 659530NAFW 659560

NAF 7010030NAFW 7010060

NAF 7510530

NAF 8011030NAF 8511530NAF 9012030

1 5202 0902 610

2 3103 950

2 1503 7003 3005 650

2 2003 8003 4505 950

2 7504 7003 9506 750

2 8004 8004 1007 000

4 2007 250

6 20010 600

6 40011 000

6 65011 400

7 05012 100

7 250

7 1507 1007 700

2 5003 7505 000

3 4006 800

4 0508 1505 050

10 100

4 3508 7505 600

11 200

6 05012 1006 900

13 800

6 35012 7007 450

14 900

7 95015 900

13 40026 800

14 30028 600

15 40031 000

17 00034 000

17 900

18 00018 10020 500

0.30.30.3

0.30.3

0.30.30.30.3

0.30.30.30.3

0.30.30.30.6

0.60.60.60.6

11

11

11

11

11

1

111

35

40

45

50

55

60

65

70

75

80

85

9095

100

Single-Row,RNAF

Without Inner Ring

Double-Row,RNAFW

Without Inner Ring

Single-Row,NAF

With Inner Ring

Double-Row,NAFW

With Inner Ring

Inscribed Circle

Diameter 35 - 100 mm

))

))

((((

Boundary Dimensions(mm)

Fw D C rmin

Basic Load Ratings(N) {kgf}

Cr Cor Cr Cor

BoundaryDimensions

(mm)

d B

Mass (kg)

approxWithout With

Inner Ring Inner Ring

LimitingSpeeds(min-1)

Oil

Bearing Numbers

Without Inner Ring

Bearing Numbers

With Inner Ring

Remarks For information on inner rings, refer to page B129.

φFwφD

Cr

φFwφD

Cr

φD φd

C

r

r

B

φD φd

C

r

r

B

RNAFWRNAF

WithoutInner Ring

NAFWNAF

WithInner Ring

Page 87: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 119

NSK NEEDLE BEARINGSOLID NEEDLE ROLLER BEARINGS

B 118

RNA…TT (Sealed, Without Inner Ring)

NA…TT (Sealed, With Inner Ring)

Inscribed Circle Diameter 14 - 52 mm

φD φd

C

NA…TT

B

22

2424

26

2828

3030

3737

3939

4242

4545

4747

5252

5555

586262

656868

13

1322

13

1323

1323

1730

1730

1730

1730

1730

2036

2036

202240

222240

7 350

8 10015 400

8 400

8 70017 500

9 35018 800

16 80033 000

17 80033 500

19 90030 000

18 90037 000

20 40040 000

28 00051 500

29 70053 000

30 50034 50067 000

36 50036 50070 500

7 500

8 85020 300

9 600

10 30025 300

11 60028 500

18 70044 000

22 90051 500

24 60041 500

23 40055 500

26 40062 500

41 50091 000

45 50095 500

47 50053 500

124 000

58 00058 500

136 000

13 000

11 00011 000

10 000

9 5009 500

8 5008 500

7 5007 500

6 7006 700

6 3006 300

5 6005 600

5 3005 300

4 5004 500

4 5004 500

4 0003 8003 800

3 8003 6003 600

10

1212

1515

1717

2020

2222

2525

2828

3030

3232

3535

―4040

―4545

14

1423

1424

1424

1831

1831

1831

1831

1831

2137

2137

―2341

―2341

0.016

0.0180.030

0.020

0.0210.039

0.0230.041

0.0550.098

0.0560.096

0.0630.11

0.0760.13

0.0720.13

0.0920.17

0.110.20

0.120.150.265

0.170.190.335

0.025

0.0280.046

0.0360.065

0.0390.069

0.0780.14

0.0880.15

0.0930.165

0.100.18

0.1050.19

0.1650.295

0.1750.32

―0.2450.44

―0.2850.50

RNA4900TT

RNA4901TTRNA6901TT

RNA49/14TT

RNA4902TTRNA6902TT

RNA4903TTRNA6903TT

RNA4904TTRNA6904TT

RNA49/22TTRNA69/22TT

RNA4905TTRNA6905TT

RNA49/28TTRNA69/28TT

RNA4906TTRNA6906TT

RNA49/32TTRNA69/32TT

RNA4907TTRNA6907TT

RNA49/38TTRNA4908TTRNA6908TT

RNA49/42TTRNA4909TTRNA6909TT

NA4900TT

NA4901TTNA6901TT

NA4902TTNA6902TT

NA4903TTNA6903TT

NA4904TTNA6904TT

NA49/22TTNA69/22TT

NA4905TTNA6905TT

NA49/28TTNA69/28TT

NA4906TTNA6906TT

NA49/32TTNA69/32TT

NA4907TTNA6907TT

―NA4908TTNA6908TT

―NA4909TTNA6909TT

750

8251 580

860

8901 780

9551 920

1 7103 350

1 8203 400

2 0303 100

1 9303 750

2 0804 050

2 8605 250

3 0505 400

3 1003 5506 800

3 7503 7007 150

765

9002 070

975

1 0502 580

1 1902 910

1 9104 500

2 3305 250

2 5104 250

2 3905 650

2 6906 350

4 2509 250

4 6509 700

4 8505 450

12 700

5 9505 950

13 800

0.3

0.30.3

0.3

0.30.3

0.30.3

0.30.3

0.30.3

0.30.3

0.30.3

0.30.3

0.60.6

0.60.6

0.60.60.6

0.60.60.6

14

16

18

20

22

25

28

30

32

35

40

42

4548

5052

Boundary Dimensions(mm)

Fw D C rmin

Basic Load Ratings(N) {kgf}

Cr Cor Cr Cor

BoundaryDimensions

(mm)

d B

Mass (kg)

approxWithout With

Inner Ring Inner Ring

LimitingSpeeds(min-1)

Grease

Numbers

WithInner Ring

Bearing

WithoutInner Ring

Remarks 1. For information on inner rings, refer to page B129.2. Standard greaes is packed in sealed solid bearings unless otherwise specified.

φD φFw

Cr

RNA…TT

Page 88: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 121

NSK NEEDLE BEARINGSOLID NEEDLE ROLLER BEARINGS

B 120

φD φd

C

NA…TT

B

707272

8080

8585

9090

100100

105105

110110

120120

125125

130130

140

150

222240

2545

2545

2545

3054

3054

3054

3563

3563

3563

40

40

38 50038 00073 000

47 50090 000

50 00094 500

52 50099 000

70 000130 000

77 000136 000

76 500141 000

94 500167 000

98 000173 000

101 000181 000

131 000

136 000

63 50063 500

148 000

76 000172 000

82 500187 000

89 500203 000

120 000264 000

139 000286 000

139 000305 000

189 000395 000

201 000420 000

214 000450 000

261 000

279 000

3 4003 2003 200

3 0003 000

2 8002 800

2 6002 600

2 2002 200

2 2002 200

2 0002 000

1 9001 900

1 8001 800

1 7001 700

1 600

1 500

―5050

5555

6060

6565

7070

7575

8080

8585

9090

9595

100

110

―2341

2646

2646

2646

3155

3155

3155

3664

3664

3664

41

41

0.180.180.32

0.260.475

0.280.485

0.320.53

0.470.89

0.500.96

0.530.99

0.681.2

0.721.35

0.741.5

1.15

1.25

―0.300.535

0.4050.735

0.440.765

0.470.795

0.751.4

0.801.5

0.8451.55

1.252.25

1.352.45

1.42.65

1.95

2.1

RNA49/48TTRNA4910TTRNA6910TT

RNA4911TTRNA6911TT

RNA4912TTRNA6912TT

RNA4913TTRNA6913TT

RNA4914TTRNA6914TT

RNA4915TTRNA6915TT

RNA4916TTRNA6916TT

RNA4917TTRNA6917TT

RNA4918TTRNA6918TT

RNA4919TTRNA6919TT

RNA4920TT

RNA4922TT

―NA4910TTNA6910TT

NA4911TTNA6911TT

NA4912TTNA6912TT

NA4913TTNA6913TT

NA4914TTNA6914TT

NA4915TTNA6915TT

NA4916TTNA6916TT

NA4917TTNA6917TT

NA4918TTNA6918TT

NA4919TTNA6919TT

NA4920TT

NA4922TT

3 9003 8507 450

4 8509 200

5 1009 600

5 35010 100

7 15013 200

7 85013 800

7 80014 400

9 60017 100

10 00017 700

10 30018 500

13 400

13 800

6 4506 500

15 100

7 75017 500

8 45019 100

9 10020 700

12 20026 900

14 10029 100

14 20031 500

19 30040 000

20 50043 000

21 80046 000

26 600

28 500

0.60.60.6

11

11

11

11

11

11

1.11.1

1.11.1

1.11.1

1.1

1.1

5558

63

68

72

80

85

90

100

105

110

115

125

Sealed, WithoutRNA…TT

Inner Ring

Sealed, WithNA…TT

Inner Ring

Inscribed Circle

Diameter 55 - 125 mm

((

))

Boundary Dimensions(mm)

Fw D C rmin

Basic Load Ratings(N) {kgf}

Cr Cor Cr Cor

BoundaryDimensions

(mm)

d B

Mass (kg)

approxWithout With

Inner Ring Inner Ring

LimitingSpeeds(min-1)

Grease

Numbers

WithInner Ring

Bearing

WithoutInner Ring

Remarks 1. For information on inner rings, refer to page B129.2. Standard greaes is packed in sealed solid bearings unless otherwise specified.

φD φFw

Cr

RNA…TT

Page 89: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 123

NSK NEEDLE BEARINGSOLID NEEDLE ROLLER BEARINGS (INCH DESIGN)

B 122

HJ (Single-Row, Without Inner Ring)

HJ + IR (Single-Row, With Inner Ring)

Inscribed Circle Diameter 15.875 - 44.450 mm

φD φd

C

raHJ+IR

B

0.6250

0.7500

0.8750

1.0000

1.1250

1.2500

1.3750

1.5000

1.6250

1.7500

28.575

31.75031.750

34.925

34.925

38.10038.100

41.275

41.275

44.45044.450

47.62547.625

52.38852.388

55.56255.562

58.738

58.738

19.05

19.0525.40

19.05

25.40

19.0525.40

25.40

31.75

25.4031.75

25.4031.75

25.4031.75

25.4031.75

25.40

31.75

1.1250

1.25001.2500

1.3750

1.3750

1.50001.5000

1.6250

1.6250

1.75001.7500

1.87501.8750

2.06252.0625

2.18752.1875

2.3125

2.3125

0.7500

0.75001.0000

0.7500

1.0000

0.75001.0000

1.0000

1.2500

1.00001.2500

1.00001.2500

1.00001.2500

1.00001.2500

1.0000

1.2500

1 890

2 0202 730

2 260

3 050

2 4703 350

3 600

4 500

3 7004 600

3 9504 900

4 6505 850

4 8006 000

4 900

6 150

1 980

2 2303 300

2 670

3 950

3 1004 600

5 250

6 950

5 6007 400

6 2508 250

7 0009 300

7 4009 850

7 800

10 400

0.6

11

111

111

1111

11

11

1.51.51.5

1.51.51.5

1.51.5

1.51.51.5

9.525

12.70012.700

15.87517.46215.875

19.05019.05020.638

22.22523.81222.22523.812

25.40025.400

28.57528.575

31.75030.16231.750

33.33833.33834.925

36.51238.100

34.92536.51238.100

0.3750

0.50000.5000

0.62500.68750.6250

0.75000.75000.8125

0.87500.93750.87500.9375

1.00001.0000

1.12501.1250

1.25001.18751.2500

1.31251.31251.3750

1.43751.5000

1.37501.43751.5000

19.05

19.0525.40

19.0519.0525.40

19.0525.4025.40

25.4025.4031.7531.75

25.4031.75

25.4031.75

25.4031.7531.75

25.4031.7531.75

25.4025.40

31.7531.7531.75

0.7500

0.75001.0000

0.75000.75001.0000

0.75001.00001.0000

1.00001.00001.25001.2500

1.00001.2500

1.00001.2500

1.00001.25001.2500

1.00001.25001.2500

1.00001.0000

1.25001.25001.2500

0.050

0.0540.073

0.0640.0640.082

0.0680.0910.091

0.100.100.130.13

0.110.14

0.120.155

0.1550.1950.195

0.160.200.20

0.170.17

0.2150.2150.215

0.068

0.0810.11

0.0900.0870.115

0.100.1350.125

0.150.140.1950.18

0.170.215

0.1850.23

0.230.300.285

0.2550.320.30

0.270.265

0.360.340.315

HJ-101812

HJ-122012HJ-122016

HJ-142212

HJ-142216

HJ-162412HJ-162416

HJ-182616

HJ-182620

HJ-202816HJ-202820

HJ-223016HJ-223020

HJ-243316HJ-243320

HJ-263516HJ-263520

HJ-283716

HJ-283720

IR-061012

IR-081212IR-081216

IR-101412IR-111412IR-101416

IR-121612IR-121616IR-131616

IR-141816IR-151816IR-141820IR-151820

IR-162016IR-162020

IR-182216IR-182220

IR-202416IR-192420IR-202420

IR-212616IR-212620IR-222620

IR-232816IR-242816

IR-222820IR-232820IR-242820

18 600

19 80026 800

22 100

29 900

24 20032 500

35 500

44 000

36 50045 500

38 50048 000

46 00057 000

47 00058 500

48 000

60 000

19 400

21 90032 000

26 200

38 500

30 50045 000

51 500

68 000

55 00072 500

61 00081 000

68 50091 000

72 50096 500

76 500

102 000

30 000

24 00024 000

20 000

20 000

17 00017 000

15 000

15 000

13 00013 000

12 00012 000

11 00011 000

10 00010 000

9 500

9 500

15.875

19.050

22.225

25.400

28.575

31.750

34.925

38.100

41.275

44.450

φD φFw

C

HJ

Remarks 1. For bearings with inner rings, the inner ring number is written separately from the Bearing number.Example: HJ-202816 + IR-162016

2. If a full complement roller bearing is required, please contact NSK.

BearingNumbers

WithoutInner Ring

Mass (kg)

approxWithout With

Inner Ring Inner Ring

MatchingInner Rings

Boundary Dimensions(mm, inch)

Fw D C

Boundary Dimensions(mm, inch)

d B

*(mm)

ramax

Basic Load Ratings(N) {kgf}

Cr Cor Cr Cor

LimitingSpeeds(min-1)

Oil

* Fillet Radius of Shaft,Housing

Page 90: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 125

NSK NEEDLE BEARINGSOLID NEEDLE ROLLER BEARINGS (INCH DESIGN)

B 124

HJ (Single-Row, Without Inner Ring)

HJ + IR (Single-Row, With Inner Ring)

Inscribed Circle Diameter 47.625- 101.600 mm

φD φd

C

raHJ+IR

B

1.87502.0000

2.2500

2.5000

2.7500

3.0000

3.2500

3.5000

3.7500

4.0000

61.91265.088

65.088

76.20076.200

82.550

82.550

88.90088.90088.900

95.25095.250

107.950107.950

114.300

120.650

127.000

31.7525.40

31.75

38.1044.45

38.10

44.45

25.4038.1044.45

38.1044.45

44.4550.80

50.80

50.80

50.80

2.43752.5625

2.5625

3.00003.0000

3.2500

3.2500

3.50003.50003.5000

3.75003.7500

4.25004.2500

4.5000

4.7500

5.0000

1.25001.0000

1.2500

1.50001.7500

1.5000

1.7500

1.00001.50001.7500

1.50001.7500

1.75002.0000

2.0000

2.0000

2.0000

6 5005 300

6 600

9 10010 500

9 800

11 300

6 70010 20011 800

10 80012 600

16 40018 600

18 900

19 800

20 600

11 4009 000

12 000

16 40019 800

18 700

22 600

11 80020 30024 500

22 60027 300

30 50036 000

37 500

40 500

43 500

1.51.5

1.51.51.51.5

1.51.5

22

22

2222

222

22

22

2.52.5

2.52.52.5

39.68842.862

38.10039.68841.27542.862

44.45044.450

49.21250.800

49.21250.800

―57.15055.56257.150

63.50060.32563.500

69.85069.850

74.61276.200

79.37582.550

82.55085.72588.900

1.56251.6875

1.50001.56251.62501.6875

1.75001.7500

1.93752.0000

1.93752.0000

―2.25002.18752.2500

2.50002.37502.5000

2.75002.7500

2.93753.0000

3.12503.2500

3.25003.37503.5000

31.7525.40

31.7531.7531.7531.75

38.1044.45

38.1038.10

44.4544.45

―38.1044.4544.45

38.1044.4544.45

44.4550.80

50.8050.80

50.8050.80

50.8050.8050.80

1.25001.0000

1.25001.25001.25001.2500

1.50001.7500

1.50001.5000

1.75001.7500

―1.50001.75001.7500

1.50001.75001.7500

1.75002.0000

2.00002.0000

2.00002.0000

2.00002.00002.0000

0.2250.185

0.2350.2350.2350.235

0.450.525

0.5250.525

0.5750.575

0.4850.5950.650.65

0.610.680.68

1.051.2

1.21.2

1.31.3

1.41.41.4

0.360.305

0.4550.430.4050.38

0.7550.88

0.900.865

1.00.975

―0.971.151.1

1.051.251.15

1.551.8

1.951.9

2.22.0

2.52.32.15

HJ-303920HJ-324116

HJ-324120

HJ-364824HJ-364828

HJ-405224

HJ-405228

HJ-445616HJ-445624HJ-445628

HJ-486024HJ-486028

HJ-526828HJ-526832

HJ-567232

HJ-607632

HJ-648032

IR-253020IR-273216

IR-243220IR-253220IR-263220IR-273220

IR-283624IR-283628

IR-314024IR-324024

IR-314028IR-324028

―IR-364424IR-354428IR-364428

IR-404824IR-384828IR-404828

IR-445228IR-445232

IR-475632IR-485632

IR-506032IR-526032

IR-526432IR-546432IR-566432

63 50052 000

65 000

89 000103 000

96 000

111 000

66 000100 000116 000

106 000123 000

161 000182 000

186 000

194 000

202 000

112 00088 000

117 000

161 000194 000

183 000

221 000

116 000199 000240 000

221 000268 000

300 000350 000

370 000

400 000

430 000

9 0008 500

8 500

7 5007 500

6 700

6 700

6 0006 0006 000

5 6005 600

5 0005 000

4 800

4 500

4 000

47.62550.800

57.150

63.500

69.850

76.200

82.550

88.900

95.250

101.600

φD φFw

C

HJ * Fillet Radius of Shaft,Housing

Remarks 1. For bearings with inner rings, the inner ring number is written separately from the Bearing number.Example: HJ-202816 + IR-162016

2. If a full complement roller bearing is required, please contact NSK.

BearingNumbers

WithoutInner Ring

Mass (kg)

approxWithout With

Inner Ring Inner Ring

MatchingInner Rings

Boundary Dimensions(mm, inch)

Fw D C

Boundary Dimensions(mm, inch)

d B

*(mm)

ra

max

Basic Load Ratings(N) {kgf}

Cr Cor Cr Cor

LimitingSpeeds(min-1)

Oil

Page 91: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 127

NSK NEEDLE BEARINGSOLID NEEDLE ROLLER BEARINGS (INCH DESIGN)

B 126

HJ (Single-Row, Without Inner Ring)

HJ + IR (Single-Row, With Inner Ring)

Inscribed Circle Diameter 107.950- 234.950 mm

φD φd

C

raHJ+IR

B

4.2500

4.5000

5.0000

5.5000

5.7500

6.0000

6.5000

7.25007.75008.2500

8.75009.2500

133.350

152.400152.400

165.100165.100

165.100

177.800177.800

184.150

190.500190.500

203.200203.200

231.775244.475257.175

269.875282.575

50.80

57.1563.50

50.8057.15

63.50

63.5076.20

76.20

63.5076.20

63.5076.20

76.2076.2076.20

76.2076.20

5.2500

6.00006.0000

6.50006.5000

6.5000

7.00007.0000

7.2500

7.50007.5000

8.00008.0000

9.12509.6250

10.1250

10.625011.1250

2.0000

2.25002.5000

2.00002.2500

2.5000

2.50003.0000

3.0000

2.50003.0000

2.50003.0000

3.00003.00003.0000

3.00003.0000

20 900

29 60033 000

28 40032 000

35 500

36 00042 500

43 500

38 00045 000

39 50046 500

54 50056 50058 500

60 50062 000

45 500

53 50061 500

52 50061 000

70 000

73 00091 000

94 500

81 500101 000

87 000109 000

117 000125 000133 000

142 000150 000

2.52.5

2.52.5

2.52.52.52.5

2.52.5

3

33

33

333

44

88.90095.250

95.25095.250

―101.600107.950101.600

114.300114.300

120.650

127.000127.000

139.700139.700

152.400165.100177.800

190.500203.200

3.50003.7500

3.75003.7500

―4.00004.25004.0000

4.50004.5000

4.7500

5.00005.0000

5.50005.5000

6.00006.50007.0000

7.50008.0000

50.8050.80

57.1563.50

―57.1557.1563.50

63.5076.20

76.20

63.5076.20

63.5076.20

76.2076.2076.20

76.2076.20

2.00002.0000

2.25002.5000

―2.25002.25002.5000

2.50003.0000

3.0000

2.50003.0000

2.50003.0000

3.00003.00003.0000

3.00003.0000

1.51.5

2.753.05

2.42.92.93.3

3.64.25

4.55

3.94.75

4.154.75

7.17.57.95

8.358.6

2.652.5

4.154.6

―4.954.455.55

6.17.2

7.7

6.658.1

7.28.4

121313.5

14.515

HJ-688432

HJ-729636HJ-729640

HJ-8010432HJ-8010436

HJ-8010440

HJ-8811240HJ-8811248

HJ-9211648

HJ-9612040HJ-9612048

HJ-10412840HJ-10412848

HJ-11614648HJ-12415448HJ-13216248

HJ-14017048HJ-14817848

IR-566832IR-606832

IR-607236IR-607240

―IR-648036IR-688036IR-648040

IR-728840IR-728848

IR-769248

IR-809640IR-809648

IR-8810440IR-8810448

IR-9611648IR-10412448IR-11213248

IR-12014048IR-12814048

205 000

290 000325 000

279 000315 000

350 000

350 000415 000

425 000

375 000445 000

385 000460 000

535 000555 000575 000

590 000610 000

445 000

525 000600 000

515 000600 000

685 000

715 000890 000

925 000

795 000995 000

855 0001 060 000

1 140 0001 230 0001 310 000

1 390 0001 470 000

3 800

3 8003 800

3 4003 400

3 400

3 0003 000

2 800

2 8002 800

2 4002 400

2 2002 0002 000

1 9001 800

107.950

114.300

127.000

139.700

146.050

152.400

165.100

184.150196.850209.550

222.250234.950

φD φFw

C

HJ

Remarks 1. For bearings with inner rings, the inner ring number is written separately from the Bearing number.Example: HJ-202816 + IR-162016

2. If a full complement roller bearing is required, please contact NSK.

* Fillet Radius of Shaft,Housing

BearingNumbers

WithoutInner Ring

Mass (kg)

approxWithout With

Inner Ring Inner Ring

MatchingInner Rings

Boundary Dimensions(mm, inch)

Fw D C

Boundary Dimensions(mm, inch)

d B

*(mm)

ra

max

Basic Load Ratings(N) {kgf}

Cr Cor Cr Cor

LimitingSpeeds(min-1)

Oil

Page 92: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 129

NSK NEEDLE BEARING

B 129

Table 1 Types of Inner Ring

Code Details

FIR

IR

Metric needle bearing combination

Inch needle bearing combination

B 128

INNER RINGS FOR NEEDLE ROLLER BEARINGSDRAWN CUP TYPE

Metric Design (FIR) Bore Diameter 7-45 mm ........................................................... B130-B135

Inch Design (IR) Bore Diameter 9.525-38.100 mm ............................................. B136-B137

SOLID TYPE

Metric Design (FIR) Bore Diameter 5-220 mm ......................................................... B138-B151

Metric Design (FIR) Bore Diameter 8-50 mm ........................................................... B152-B155

Inch Design (IR) Bore Diameter 9.525-203.200 mm ........................................... B156-B161

For use when shafts cannot be finished with proper accuracy andhardness, NSK produces inner rings that are made from carefully selectedbearing steel and finished with heat treatment and grinding work.

TYPE

The various types of inner rings for needle roller bearings are shown inTable 1.

ACCURACY

Dimensional accuracy of the inner rings of NSK needle roller bearingsconforms with ISO (refer to pages A26 and A27). Tolerances for inch innerrings are shown in the dimensional table for drawn cup bearings, and inTable 3 on page B92 for solid bearings.

MOUNTING

The inner ring is mounted with the unmarked side placed onto the shaftshoulder.

Fitting tolerance for the drawn cup needle bearing shaft should be h6 orjs6 (j6). When requesting a tight fit for the inner ring, please consult NSK.

Each shaft fitting tolerance for the inner ring for solid needle bearings isshown in Table 5.2 on page A33.

Pages

Page 93: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 131

NSK NEEDLE BEARINGINNER RINGS FOR DRAWN CUP NEEDLE ROLLER BEARINGS

B 130

FIR

Bore Diameter 7 - 15 mm

FH-1010――

―FJ-1212―

F-1312F-1412F-1413

―――

F-1512―――

F-1512F-1516F-1612

F-1616――

――

F-1812―

F-1816

―――

F-2020――

FJ-1010―

FJ-1015

FJ-1210FJH-1212―

FJ-1312FJ-1412―

―――

FJ-1512―――

FJ-1512FJ-1516FJ-1612

FJ-1616――

――

FJ-1812―

FJ-1816

―――

FJ-2020――

FJL-1010FJL-1012LFJL-1015

―FJL-1212LFJL-1215

―――

FJL-1416LFJL-1420LFJL-1510L

FJL-1512LFJL-1515FJL-1520FJL-1525L

FJL-1512L――

FJL-1616LFJL-1620LFJL-1715

FJL-1720LFJL-1725L

―FJL-1815―

FJL-1820LFJL-1825FJL-2015

FJL-2020FJL-2025LFJL-2030L

Matching Drawn Cup Needle Roller Bearings

F FJ FJL

7

8

10

12

15

101010

121212

131414

141415

15151515

151516

161617

1717

181818

181820

202020

10.512.512.5

10.512.515.5

12.512.513.5

16.520.510.5

12.515.520.525.5

12.516.512.5

16.520.515.5

20.525.5

12.515.516.5

20.525.515.5

20.525.530.5

0.30.30.3

0.30.30.3

0.30.30.3

0.30.30.3

0.30.30.30.3

0.30.30.3

0.30.30.3

0.30.3

0.30.30.3

0.30.30.3

0.30.30.3

3.33.94.8

5.16.17.6

5.37.37.9

9.712

8.0

9.5121619

6.28.28.6

111414

1823

7.69.4

10

121517

222733

FIR-071010FIR-071012FIR-071015

FIR-081210FIR-081212FIR-081215

FIR-101312FIR-101412FIR-101413

FIR-101416FIR-101420FIR-101510

FIR-101512FIR-101515FIR-101520FIR-101525

FIR-121512FIR-121516FIR-121612

FIR-121616FIR-121620FIR-121715

FIR-121720FIR-121725

FIR-151812FIR-151815FIR-151816

FIR-151820FIR-151825FIR-152015

FIR-152020FIR-152025FIR-152030

φd

r

B

φF

Mass(g)

approx

Boundary Dimensions(mm)

d F B rh5 min

Inner Ring Numbers

NSK NEEDLE BEARING

Page 94: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 133

NSK NEEDLE BEARINGINNER RINGS FOR DRAWN CUP NEEDLE ROLLER BEARINGS

B 132

F-2012F-2016F-2020

F-2210F-2212―

F-2216F-2220――

――

F-2516

F-2520―

F-2526―

F-2816F-2820F-2826―

―F-3020―

F-3026―

――

F-3512―

F-3520

―F-3526―

FJ-2012FJ-2016FJ-2020

―FJ-2212―

FJ-2216FJ-2220――

――

FJ-2516

FJ-2520―

FJ-2526―

FJ-2816FJ-2820FJ-2826―

―FJ-3020―

FJ-3026―

――

FJ-3512―

FJ-3520

―FJ-3526―

――

FJL-2020

FJL-2210L―

FJL-2215L

―FJL-2220LFJL-2225LFJL-2230L

FJL-2510FJL-2515L―

FJL-2520FJL-2525L―

FJL-2530

―FJL-2820L―

FJL-2830L

FJL-3015LFJL-3020LFJL-3025L

―FJL-3030L

FJL-3220FJL-3230

FJL-3512FJL-3515FJL-3520L

FJL-3525L―

FJL-3530L

Matching Drawn Cup Needle Roller Bearings

F FJ FJL

FIR

Bore Diameter 17 - 30 mm

17

20

22

25

28

30

202020

222222

22222222

252525

25252525

28282828

303030

3030

3232

353535

353535

12.516.520.5

10.512.515.5

16.520.525.530.5

10.515.516.5

20.525.526.530.5

16.520.526.530.5

15.520.525.5

26.530.5

20.530.5

12.515.520.5

25.526.530.5

0.30.30.3

0.30.30.3

0.30.30.30.3

0.30.30.3

0.30.30.30.3

0.30.30.30.3

0.30.30.3

0.30.3

0.30.3

0.60.60.6

0.60.60.6

8.51114

121518

20243036

142123

28353642

30384956

263443

4451

3045

253141

515361

FIR-172012FIR-172016FIR-172020

FIR-172210FIR-172212FIR-172215

FIR-172216FIR-172220FIR-172225FIR-172230

FIR-202510FIR-202515FIR-202516

FIR-202520FIR-202525FIR-202526FIR-202530

FIR-222816FIR-222820FIR-222826FIR-222830

FIR-253015FIR-253020FIR-253026

FIR-253026FIR-253030

FIR-283220FIR-283230

FIR-303512FIR-303515FIR-303520

FIR-303525FIR-303526FIR-303530

φd

r

B

φF

Mass(g)

approx

Boundary Dimensions(mm)

d F B rh5 min

Inner Ring Numbers

Page 95: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 135

NSK NEEDLE BEARINGINNER RINGS FOR DRAWN CUP NEEDLE ROLLER BEARINGS

B 134

―F-4020―

F-4026―

F-4520―

F-4526―

―――

――

―FJ-4020―

FJ-4026―

FJ-4520―

FJ-4526―

――

FJ-5020

――

FJL-4015LFJL-4020LFJL-4025L

―FJL-4030L

FJL-4520LFJL-4525L―

FJL-4530L

FJL-5012LFJL-5015LFJL-5020L

FJL-5025LFJL-5030L

Matching Drawn Cup Needle Roller Bearings

F FJ FJL

FIR

Bore Diameter 35 - 45 mm

35

40

45

404040

4040

45454545

505050

5050

15.520.525.5

26.530.5

20.525.526.530.5

12.515.520.5

25.530.5

0.60.60.6

0.60.6

0.60.60.60.6

0.60.60.6

0.60.6

364758

6170

53666779

364559

7489

FIR-354015FIR-354020FIR-354025

FIR-354026FIR-354030

FIR-404520FIR-404525FIR-404526FIR-404530

FIR-455012FIR-455015FIR-455020

FIR-455025FIR-455030

φd

r

B

φF

Mass(g)

approx

Boundary Dimensions(mm)

d F B rh5 min

Inner Ring Numbers

Page 96: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 137

NSK NEEDLE BEARINGINNER RINGS FOR DRAWN CUP NEEDLE ROLLER BEARINGS (INCH DESIGN)

B 136

B-98B-108B-912B-1012

B-128B-1212

B-1412B-1416

B-168B-1612B-1616

――

B-1612B-1616

B-1816B-1816

B-2012B-2016

B-2212B-2216B-2220

B-2416B-2420

B-2416B-2420

B-2620

B-2816B-2824

B-2816B-2824

BH-98BH-108BH-912BH-1012

――

BH-1412―

BH-168BH-1612BH-1616

BH-1620BH-1624

BH-1612BH-1616

BH-1816BH-1816

BH-2012BH-2016

BH-2212BH-2216BH-2220

――

――

――

――

J-98J-108―

J-1012

J-128J-1212

J-1412J-1416

―J-1612J-1616

――

J-1612J-1616

J-1816J-1816

J-2012J-2016

―――

J-2416J-2420

J-2416J-2420

J-2816J-2824

J-2816J-2824

JH-98―――

―JH-1212

JH-1412JH-1416

―JH-1612JH-1616

――

JH-1612JH-1616

JH-1816JH-1816

―JH-2016

JH-2212JH-2216―

――

――

――

――

Matching Drawn CupNeedle Roller Bearings

B BH J JH

IR

Bore Diameter 9.525 - 38.100 mm

9.525

12.700

15.875

19.050

20.638

22.22523.812

25.400

28.575

30.162

31.750

34.925

36.512

38.100

0.3750

0.5000

0.6250

0.7500

0.8125

0.87500.9375

1.0000

1.1250

1.1875

1.2500

1.3750

1.4375

1.5000

14.28815.87514.28815.875

19.05019.050

22.22522.225

25.40025.40025.400

25.40025.400

25.40025.400

28.57528.575

31.75031.750

34.92534.92534.925

38.10038.100

38.10038.100

41.275

44.45044.450

44.45044.450

13.0813.0819.4319.43

13.0819.43

19.4325.78

13.0819.4325.78

32.1338.48

19.4325.78

25.7825.78

19.4225.78

19.4325.7832.13

25.7832.13

25.7832.13

32.13

25.7838.48

25.7838.48

9.1131319

1624

2938

233444

5566

2635

5139

4357

486479

85105

7087

95

100150

83125

0.60.60.60.6

1.01.0

1.01.0

1.01.01.0

1.01.0

1.01.0

1.01.0

1.01.0

1.01.01.0

1.01.0

1.51.5

1.5

1.51.5

1.51.5

0.56250.62500.56250.6250

0.75000.7500

0.87500.8750

1.00001.00001.0000

1.00001.0000

1.00001.0000

1.12501.1250

1.12501.1250

1.37501.37501.3750

1.50001.5000

1.50001.5000

1.6250

1.75001.7500

1.75001.7500

IR-68IR-68-1IR-612IR-612-1

IR-88IR-812

IR-1012IR-1016

IR-128IR-1212IR-1216

IR-1220IR-1224

IR-1312IR-1316

IR-1416IR-1516

IR-1612IR-1616

IR-1812IR-1816IR-1820

IR-1916IR-1920

IR-2016IR-2020

IR-2220

IR-2316IR-2324

IR-2416IR-2424

φd

B

ra

φF

Boundary Dimensions(mm, inch)

d F B

FilletRadius of

Shaft (mm)ra

max

Mass(g)

approx

Inner RingNumbers

0–0.25

0–0.013

0– 0.013

Remarks Inner rings can be used with Y and YH types (pages B76~B79).

Page 97: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 139

NSK NEEDLE BEARINGINNER RINGS FOR SOLID NEEDLE ROLLER BEARINGS

B 138

RLM81512-1RLM81516-1

RLM101712-1RLM101716-1

RLM121916-1

RNA4900RNA4900TT

RNA5900

RNA6900

RNA4901RNA4901TT

RNA5901

RNA6901RNA6901TT

RNA4902RNA4902TT

RNA5902RNA5902RNA6902TT

RNAF142612RNAF142213

RNAF162812RNAF162413

RNAF203212RNAF202813

RNAFW142220

RNAFW162420

RNAFW202826

Matching Solid Needle Roller Bearings

RLM RNA RNAF RNAFW

FIR

Bore Diameter 5 - 15 mm

5

7

9

10

12

15

88

1010

12

141414

141414

161616

16161616

202020

20202020

1216

1216

16

121314

162022

121314

16202223

121314

18232426

0.150.15

0.150.15

0.3

0.30.30.3

0.30.30.3

0.30.30.3

0.30.30.30.3

0.30.30.3

0.30.30.30.3

0.0030.004

0.0040.005

0.006

0.0070.0080.008

0.0090.0120.013

0.0080.0090.010

0.0110.0140.0150.016

0.0130.0140.015

0.0190.0250.0260.028

FIR-5812-1FIR-5816-1

FIR-71012-1FIR-71016-1

FIR-91216-1

FIR-101412-1FIR-101413-1FIR-101414-1

FIR-101416-1FIR-101420-1FIR-101422-1

FIR-121612-1FIR-121613-1FIR-121614-1

FIR-121616-1FIR-121620-1FIR-121622-1FIR-121623-1

FIR-152012-1FIR-152013-1FIR-152014-1

FIR-152018-1FIR-152023-1FIR-152024-1FIR-152026-1

φd

r

B

φF

Mass(kg)

approx

Boundary Dimensions(mm)

d F B rmin

Inner Ring Numbers

Page 98: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 141

NSK NEEDLE BEARINGINNER RINGS FOR SOLID NEEDLE ROLLER BEARINGS

B 140

RLM293820-1

RNA4903RNA4903TT

RNA5903RNA6903RNA6903TT

RNA4904RNA4904TT

RNA5904

RNA6904

RNA6904TT

RNA49/22RNA49/22TTRNA59/22

RNA69/22RNA69/22TT

RNA4905

RNA4905TTRNA5905

RNA6905RNA6905TT

RNAF223013

RNAF223516

RNAF253716RNAF253517

RNAF304216RNAF304017

RNAFW223026RNAFW223532

RNAFW253526

RNAFW253732

RNAFW304026

RNAFW304232

Matching Solid Needle Roller Bearings

RLM RNA RNAF RNAFW

FIR

Bore Diameter 17 - 25 mm

17

20

22

25

222222

222222

2222

252525

252525

2525

282828

2828

293030

303030

303030

131416

182324

2632

161718

232630

3132

171823

3031

201617

182326

303132

0.30.30.3

0.30.30.3

0.30.3

0.30.30.3

0.30.30.3

0.30.3

0.30.30.3

0.30.3

0.30.30.3

0.30.30.3

0.30.30.3

0.0160.0170.019

0.0220.0270.029

0.0310.038

0.0220.0230.025

0.0320.0360.041

0.0430.044

0.0310.0330.042

0.0550.057

0.0260.0270.029

0.0300.0390.044

0.0510.0520.054

FIR-172213-1FIR-172214-1FIR-172216-1

FIR-172218-1FIR-172223-1FIR-172224-1

FIR-172226-1FIR-172232-1

FIR-202516-1FIR-202517-1FIR-202518-1

FIR-202523-1FIR-202526-1FIR-202530-1

FIR-202531-1FIR-202532-1

FIR-222817-1FIR-222818-1FIR-222823-1

FIR-222830-1FIR-222831-1

FIR-252920-1FIR-253016-1FIR-253017-1

FIR-253018-1FIR-253023-1FIR-253026-1

FIR-253030-1FIR-253031-1FIR-253032-1

φd

r

B

φF

Mass(kg)

approx

Boundary Dimensions(mm)

d F B rmin

Inner Ring Numbers

Page 99: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 143

NSK NEEDLE BEARINGINNER RINGS FOR SOLID NEEDLE ROLLER BEARINGS

B 142

RLM374730-1

RLM435320-1RLM435330-1

RNA49/28RNA49/28TTRNA59/28

RNA69/28RNA69/28TT

RNA4906

RNA4906TTRNA5906

RNA6906RNA6906TT

RNA49/32RNA49/32TT

RNA59/32RNA69/32RNA69/32TT

RNA4907RNA4907TT

RNA5907RNA6907RNA6907TT

RNAF354513RNAF354716RNAF354517

RNAF405017RNAF405520

RNAFW354526

RNAFW354732

RNAFW405034

RNAFW405540

Matching Solid Needle Roller Bearings

RLM RNA RNAF RNAFW

FIR

Bore Diameter 28 - 38 mm

28

30

32

35

38

323232

3232

353535

353535

353535

374040

404040

404040

404242

424242

4343

171823

3031

131617

182326

303132

302021

273637

172034

402021

273637

2030

0.30.30.3

0.30.3

0.30.30.3

0.30.30.3

0.30.30.3

0.30.60.6

0.60.60.6

0.30.30.3

0.30.60.6

0.60.60.6

0.30.3

0.0250.0260.034

0.0440.046

0.0260.0320.034

0.0360.0460.052

0.0600.0620.064

0.0630.0710.074

0.0950.1270.131

0.0390.0460.078

0.0920.0660.069

0.0890.1190.122

0.0500.074

FIR-283217-1FIR-283218-1FIR-283223-1

FIR-283230-1FIR-283231-1

FIR-303513-1FIR-303516-1FIR-303517-1

FIR-303518-1FIR-303523-1FIR-303526-1

FIR-303530-1FIR-303531-1FIR-303532-1

FIR-323730-1FIR-324020-1FIR-324021-1

FIR-324027-1FIR-324036-1FIR-324037-1

FIR-354017-1FIR-354020-1FIR-354034-1

FIR-354040-1FIR-354220-1FIR-354221-1

FIR-354227-1FIR-354236-1FIR-354237-1

FIR-384320-1FIR-384330-1

φd

r

B

φF

Mass(kg)

approx

Boundary Dimensions(mm)

d F B rmin

Inner Ring Numbers

Page 100: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 145

NSK NEEDLE BEARINGINNER RINGS FOR SOLID NEEDLE ROLLER BEARINGS

B 144

RLM475720-1RLM475730-1

RLM506225RLM506235-1

RLM556825-1RLM556835-1

RNA4908RNA4908TT

RNA5908RNA6908RNA6908TT

RNA4909RNA4909TT

RNA5909RNA6909RNA6909TT

RNA4910RNA4910TT

RNA5910RNA6910RNA6910TT

RNAF455517RNAF456220

RNAF506220

RNAF556820

RNAF607820

RNAFW455534

RNAFW456240

RNAFW506240

RNAFW557240

RNAFW556840

RNAFW607840

Matching Solid Needle Roller Bearings

RLM RNA RNAF RNAFW

FIR

Bore Diameter 40 - 50 mm

40

42

45

50

454545

454848

484848

4747

505050

505252

52525255

555555

555858

585858

6060

172034

402223

304041

2030

202535

402223

30404140

202535

402223

304041

2040

0.30.30.3

0.30.60.6

0.60.60.6

0.30.3

0.30.30.6

0.30.60.6

0.60.60.60.6

0.60.50.3

0.60.60.6

0.60.60.6

11

0.0440.0520.089

0.1040.0950.099

0.1290.1730.177

0.0550.082

0.0580.0730.102

0.1160.0920.096

0.1250.1660.1710.245

0.0640.0800.113

0.1290.1160.122

0.1590.2120.217

0.1350.270

FIR-404517-1FIR-404520-1FIR-404534-1

FIR-404540-1FIR-404822-1FIR-404823-1

FIR-404830-1FIR-404840-1FIR-404841-1

FIR-424720-1FIR-424730-1

FIR-455020-1FIR-455025-1FIR-455035-1

FIR-455040-1FIR-455222-1FIR-455223-1

FIR-455230-1FIR-455240-1FIR-455241-1FIR-455540-1

FIR-505520-1FIR-505525-1FIR-505535-1

FIR-505540-1FIR-505822-1FIR-505823-1

FIR-505830-1FIR-505840-1FIR-505841-1

FIR-506020-1FIR-506040-1

φd

r

B

φF

Mass(kg)

approx

Boundary Dimensions(mm)

d F B rmin

Inner Ring Numbers

Page 101: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 147

NSK NEEDLE BEARINGINNER RINGS FOR SOLID NEEDLE ROLLER BEARINGS

B 146

RLM607225RLM607235-1

RLM688225-1

RLM688235-1

RLM739035-1

RLM809525-1

RLM809535-1

RNA4911

RNA4911TTRNA5911RNA6911

RNA6911TT

RNA4912RNA4912TTRNA5912

RNA6912RNA6912TT

RNA4913RNA4913TTRNA5913

RNA6913RNA6913TT

RNA4914RNA4914TT

RNA5914RNA6914

RNA6914TT

RNAF658530

RNAF709030

RNAF759530

RNAF8010030

RNAFW658560

RNAFW709060

RNAFW759560

RNAFW8010060

Matching Solid Needle Roller Bearings

RLM RNA RNAF RNAFW

FIR

Bore Diameter 55 - 70 mm

55

60

65

70

606063

636363

636565

686868

686868

7070

727272

727273

7575

808080

808080

8080

253525

263445

463060

252634

354546

3060

252634

454635

3060

253031

354054

5560

0.30.31

111

111

111

0.611

11

111

111

11

111

111

11

0.0880.1230.145

0.1500.1970.260

0.2660.2210.441

0.1570.1630.213

0.2200.2820.289

0.2390.478

0.1470.1530.200

0.2640.2700.237

0.2570.515

0.2300.2760.285

0.3220.3680.496

0.5050.551

FIR-556025-1FIR-556035-1FIR-556325-1

FIR-556326-1FIR-556334-1FIR-556345-1

FIR-556346-1FIR-556530-1FIR-556560-1

FIR-606825-1AFIR-606826-1FIR-606834-1

FIR-606835-1FIR-606845-1FIR-606846-1

FIR-607030-1FIR-607060-1

FIR-657225-1FIR-657226-1FIR-657234-1

FIR-657245-1FIR-657246-1FIR-657335-1

FIR-657530-1FIR-657560-1

FIR-708025-1FIR-708030-1FIR-708031-1

FIR-708035-1FIR-708040-1FIR-708054-1

FIR-708055-1FIR-708060-1

Mass(kg)

approx

Boundary Dimensions(mm)

d F B rmin

Inner Ring Numbers

φd

r

B

φF

Page 102: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 149

NSK NEEDLE BEARINGINNER RINGS FOR SOLID NEEDLE ROLLER BEARINGS

B 148

RLM8510525-1

RLM8510535-1

RLM9011025-1

RLM9511526-1

RLM10012026-1

RNA4915RNA4915TT

RNA5915RNA6915RNA6915TT

RNA4916RNA4916TT

RNA5916RNA6916RNA6916TT

RNA4917

RNA4917TTRNA5917RNA6917RNA6917TT

RNA4918

RNA4918TTRNA5918RNA6918

RNA4919RNA4919TTRNA5919

RNA6919RNA6919TT

RNA4920RNA4920TTRNA5920

RNAF8510530

RNAF9011030

RNAF9511530

RNAF10012030

Matching Solid Needle Roller Bearings

RLM RNA RNAF RNAFW

FIR

Bore Diameter 75 - 100 mm

75

80

85

90

95

100

858585

85858585

909090

909090

9595

100

100100100100

100100105

105105105

110110110

110110

115115115

253031

35405455

253031

405455

263035

36466364

263035

364663

353646

6364

404154

111

1111

111

111

111.1

1.11.11.11.1

111.1

1.11.11.1

1.11.11.1

1.11.1

1.11.11.1

0.2450.2940.304

0.3430.3920.5290.539

0.2600.3120.323

0.4170.5620.573

0.2870.3310.595

0.6120.7821.0711.088

0.3030.3490.627

0.6450.8241.129

0.6590.6780.867

1.1871.206

0.7900.8101.067

FIR-758525-1FIR-758530-1FIR-758531-1

FIR-758535-1FIR-758540-1FIR-758554-1FIR-758555-1

FIR-809025-1FIR-809030-1FIR-809031-1

FIR-809040-1FIR-809054-1FIR-809055-1

FIR-859526-1FIR-859530-1FIR-8510035-1

FIR-8510036-1FIR-8510046-1FIR-8510063-1FIR-8510064-1

FIR-9010026-1FIR-9010030-1FIR-9010535-1

FIR-9010536-1FIR-9010546-1FIR-9010563-1

FIR-9511035-1FIR-9511036-1FIR-9511046-1

FIR-9511063-1FIR-9511064-1

FIR-10011540-1FIR-10011541-1FIR-10011554-1

φd

r

B

φF

Mass(kg)

approx

Boundary Dimensions(mm)

d F B rmin

Inner Ring Numbers

Page 103: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 151

NSK NEEDLE BEARINGINNER RINGS FOR SOLID NEEDLE ROLLER BEARINGS

B 150

RNA4822RNA4922RNA4922TTRNA5922

RNA4824RNA4924RNA5924

RNA4826RNA4926RNA5926

RNA4828RNA4928RNA5928

RNA4830RNA4930

RNA4832RNA4932

RNA4834RNA4934

RNA4836RNA4936

RNA4838RNA4938

RNA4840RNA4940

RNA4844RNA4944

Matching Solid Needle Roller Bearings

RLM RNA RNAF RNAFW

FIR

Bore Diameter 110 - 220 mm

110

120

130

140

150

160

170

180

190

200

220

120125125125

130135135

145150150

155160160

165170

175180

185190

195205

210215

220225

240245

30404154

304560

355067

355067

4060

4060

4560

4569

5069

5080

5080

11.11.11.1

11.11.1

1.11.51.5

1.11.51.5

1.12

1.12

1.12

1.12

1.52

1.52.1

1.52.1

0.4230.8640.8851.166

0.4591.0541.406

0.8841.7152.298

0.9491.8382.463

1.1582.352

1.2312.499

1.4682.646

1.5514.068

2.4504.280

2.5735.207

2.8185.697

FIR-11012030-1FIR-11012540-1FIR-11012541-1FIR-11012554-1

FIR-12013030-1FIR-12013545-1FIR-12013560-1

FIR-13014535-1FIR-13015050-1FIR-13015067-1

FIR-14015535-1FIR-14016050-1FIR-14016067-1

FIR-15016540-1FIR-15017060-1

FIR-16017540-1FIR-16018060-1

FIR-17018545-1FIR-17019060-1

FIR-18019545-1FIR-18020569-1

FIR-19021050-1FIR-19021569-1

FIR-20022050-1FIR-20022580-1

FIR-22024050-1FIR-22024580-1

Mass(kg)

approx

Boundary Dimensions(mm)

d F B rmin

Inner Ring Numbers

φd

r

B

φF

Page 104: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 153

NSK NEEDLE BEARINGINNER RINGS FOR SOLID NEEDLE ROLLER BEARINGS

B 152

RLM1212

RLM1416RLM1420RLM158

RLM1515RLM1520

RLM1616RLM1620RLM1710

RLM1720

RLM1815RLM1817RLM1820

RLM1825RLM1916RLM1920

RLM2010RLM2015RLM2020RLM2025

RLM2116RLM2120RLM2215

RLM2220RLM2225

RLM2420RLM2428

RLM2512RLM2520RLM2525

RLM121912RLM121915

RLM152212RLM152215RLM152220

RLM172415

RLM172425

RLM202820

RLM223016RLM223020

RLM243216

RLM253320RLM253325

Matching Solid Needle Roller Bearings

RLM

FIR

Bore Diameter 8 - 20 mm

8

10

12

15

17

20

1212

141415

151515

161617

171717

181818

181919

20202020

212122

222222

242424

252525

12.215.2

16.220.2

8.2

12.215.220.2

16.220.210.2

15.220.225.2

15.217.220.2

25.216.220.2

10.215.220.225.2

16.220.225.2

16.220.225.2

16.220.228.2

12.220.225.2

0.30.3

0.30.30.3

0.30.30.3

0.30.30.3

0.50.50.5

0.50.50.5

0.50.50.5

0.50.50.50.5

0.50.50.5

0.50.50.5

0.50.50.5

0.50.50.5

5.97.4

9.511.9

6.2

9.311.615.5

11.113.9

9.0

13.517.922.4

9.210.412.3

15.313.516.8

10.916.321.727

15.118.818.2

19.424.130.1

17.521.830.4

16.827.834.7

FIR-81212-2FIR-81215-2

FIR-101416-2FIR-101420-2FIR-10158-2

FIR-101512-2FIR-101515-2FIR-101520-2

FIR-121616-2FIR-121620-2FIR-121710-2

FIR-121715-2FIR-121720-2FIR-121725-2

FIR-151815-2FIR-151817-2FIR-151820-2

FIR-151825-2FIR-151916-2FIR-151920-2

FIR-152010-2FIR-152015-2FIR-152020-2FIR-152025-2

FIR-172116-2FIR-172120-2FIR-172215-2

FIR-172216-2FIR-172220-2FIR-172225-2

FIR-202416-2FIR-202420-2FIR-202428-2

FIR-202512-2FIR-202520-2FIR-202525-2

φd

r

B

φF

Mass(g)

approx

Boundary Dimensions(mm)

d F B rmin

Inner Ring Numbers

Page 105: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 155

NSK NEEDLE BEARINGINNER RINGS FOR SOLID NEEDLE ROLLER BEARINGS

B 154

RLM2620RLM2820RLM2825

RLM2920RLM2930RLM3015

RLM3020RLM3025

RLM3220RLM3230

RLM3520

RLM3530

RLM3720RLM3730RLM3815

RLM3820RLM3825RLM3830

RLM4015RLM4020RLM4025RLM4030

RLM4520RLM4525RLM4530

RLM5020

RLM5030

RLM5530RLM5540

RLM6040

RLM283720

RLM283730

RLM304020RLM304025

RLM354520RLM354525RLM354530

RLM506220RLM506225RLM506230

RLM607230RLM607240

Matching Solid Needle Roller Bearings

RLM

FIR

Bore Diameter 22 - 50 mm

22

25

28

30

32

35

40

42

45

50

26282828

292930

3030

3232

353535

373738

383838

40404040

454545

505050

5555

6060

20.220.225.230.2

20.230.215.2

20.225.2

20.230.2

20.225.230.2

20.330.315.3

20.325.330.3

15.320.325.330.3

20.325.330.3

20.325.330.3

30.340.3

30.340.3

0.50.50.50.5

0.50.50.5

0.50.5

0.50.5

0.50.50.5

0.60.60.6

0.60.60.6

0.60.60.60.6

0.60.60.6

0.60.60.6

0.60.6

0.60.6

23.837.146.355.5

26.74025.6

3442.5

29.744.4

40.250.260.1

42.96439.4

52.265.178

35.146.658.169.6

52.965.978.9

91.5114137

186247

204272

FIR-222620-2FIR-222820-2FIR-222825-2FIR-222830-2

FIR-252920-2FIR-252930-2FIR-253015-2

FIR-253020-2FIR-253025-2

FIR-283220-2FIR-283230-2

FIR-303520-2FIR-303525-2FIR-303530-2

FIR-323720-2FIR-323730-2FIR-323815-2

FIR-323820-2FIR-323825-2FIR-323830-2

FIR-354015-2FIR-354020-2FIR-354025-2FIR-354030-2

FIR-404520-2FIR-404525-2FIR-404530-2

FIR-425020-2FIR-425025-2FIR-425030-2

FIR-455530-2FIR-455540-2

FIR-506030-2FIR-506040-2

φd

r

B

φF

Mass(g)

approx

Boundary Dimensions(mm)

d F B rmin

Inner Ring Numbers

Page 106: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 157

NSK NEEDLE BEARINGINNER RINGS FOR SOLID NEEDLE ROLLER BEARINGS (INCH DESIGN)

B 156

0.0180.0270.037

0.0260.033

0.023

0.0320.044

0.0340.0500.065

0.0400.050

0.0600.075

0.0650.075

0.105

0.0750.090

0.0950.12

0.100.145

0.100.125

0.0950.100.22

0.1350.195

HJ-101812HJ-122012HJ-122016

HJ-142212HJ-142216

HJ-142212

HJ-162412HJ-162416

HJ-162416HJ-182616HJ-182620

HJ-182616HJ-182620

HJ-202816HJ-202820

HJ-223016HJ-223020

HJ-243320

HJ-243316HJ-243320

HJ-263516HJ-263520

HJ-263520HJ-283720

HJ-283716HJ-283720

HJ-283716HJ-283720HJ-324120

HJ-303920HJ-324120

0.611

11

1

11

111

11

11

11

1.5

1.51.5

1.51.5

1.51.5

1.51.5

1.51.51.5

1.51.5

Matching Solid NeedleRoller Bearings

HJ

Mass(kg)

approx

FilletRadius of

Shaft (mm)ra

max

IR

Bore Diameter 9.525 - 39.688 mm

9.52512.700

15.875

17.462

19.050

20.63822.225

23.812

25.400

28.575

30.162

31.750

33.338

34.925

36.512

38.100

39.688

0.37500.5000

0.6250

0.6875

0.7500

0.81250.8750

0.9375

1.0000

1.1250

1.1875

1.2500

1.3125

1.3750

1.4375

1.5000

1.5625

0.62500.75000.7500

0.87500.8750

0.8750

1.00001.0000

1.00001.12501.1250

1.12501.1250

1.25001.2500

1.37501.3750

1.5000

1.50001.5000

1.62501.6250

1.62501.7500

1.75001.7500

1.75001.75002.0000

1.87502.0000

15.87519.05019.050

22.22522.225

22.225

25.40025.400

25.40028.57528.575

28.57528.575

31.75031.750

34.92534.925

38.100

38.10038.100

41.27541.275

41.27544.450

44.45044.450

44.45044.45050.800

47.62550.800

19.0519.0525.40

19.0525.40

19.05

19.0525.40

25.4025.4031.75

25.4031.75

25.4031.75

25.4031.75

31.75

25.4031.75

25.4031.75

31.7531.75

25.4031.75

25.4031.7531.75

31.7531.75

IR-061012IR-081212IR-081216

IR-101412IR-101416

IR-111412

IR-121612IR-121616

IR-131616IR-141816IR-141820

IR-151816IR-151820

IR-162016IR-162020

IR-182216IR-182220

IR-192420

IR-202416IR-202420

IR-212616IR-212620

IR-222620IR-222820

IR-232816IR-232820

IR-242816IR-242820IR-243220

IR-253020IR-253220

φd

ra

B

φF

Boundary Dimensions(mm, inch)

d F BInner Ring Numbers

Page 107: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 159

NSK NEEDLE BEARINGINNER RINGS FOR SOLID NEEDLE ROLLER BEARINGS (INCH DESIGN)

B 158

0.170.120.145

0.3050.355

0.3750.425

0.340.400.50

0.3750.45

0.57

0.440.47

0.500.60

0.750.700.90

0.701.1

0.90

0.751.15

1.01.41.55

2.052.25

1.55

HJ-324120HJ-324116HJ-324120

HJ-364824HJ-364828

HJ-405224HJ-405228

HJ-405224HJ-405228HJ-445628

HJ-445624HJ-445628

HJ-486028

HJ-486024HJ-486028

HJ-526828HJ-526832

HJ-567232HJ-567232HJ-607632

HJ-607632HJ-648032

HJ-648032

HJ-648032HJ-688432

HJ-688432HJ-729636HJ-729640

HJ-8010436HJ-8010440

HJ-8010436

1.51.51.5

1.51.5

22

222

22

2

22

22

222.5

2.52.5

2.5

2.52.5

2.52.52.5

2.52.5

2.5

Matching Solid NeedleRoller Bearings

HJ

Mass(kg)

approx

FilletRadius of

Shaft (mm)ra

max

IR

Bore Diameter 41.275 - 107.950 mm

41.27542.862

44.450

49.212

50.800

55.562

57.150

60.325

63.500

69.850

74.61276.20079.375

82.550

85.725

88.900

95.250

101.600

107.950

1.62501.6875

1.7500

1.9375

2.0000

2.1875

2.2500

2.3750

2.5000

2.7500

2.93753.00003.1250

3.2500

3.3750

3.5000

3.7500

4.0000

4.2500

2.00002.00002.0000

2.25002.2500

2.50002.5000

2.50002.50002.7500

2.75002.7500

3.0000

3.00003.0000

3.25003.2500

3.50003.50003.7500

3.75004.0000

4.0000

4.00004.2500

4.25004.50004.5000

5.00005.0000

5.0000

50.80050.80050.800

57.15057.150

63.50063.500

63.50063.50069.850

69.85069.850

76.200

76.20076.200

82.55082.550

88.90088.90095.250

95.250101.600

101.600

101.600107.950

107.950114.300114.300

127.000127.000

127.000

31.7525.4031.75

38.1044.45

38.1044.45

38.1044.4544.45

38.1045.45

44.45

38.1044.45

44.4550.80

50.8050.8050.80

50.8050.80

50.80

50.8050.80

50.8057.1563.50

57.1563.50

57.15

IR-263220IR-273216IR-273220

IR-283624IR-283628

IR-314024IR-314028

IR-324024IR-324028IR-354428

IR-364424IR-364428

IR-384828

IR-404824IR-404828

IR-445228IR-445232

IR-475632IR-485632IR-506032

IR-526032IR-526432

IR-546432

IR-566432IR-566832

IR-606832IR-607236IR-607240

IR-648036IR-648040

IR-688036

φd

ra

B

φF

Boundary Dimensions(mm, inch)

d F BInner Ring Numbers

Page 108: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 161

NSK NEEDLE BEARINGINNER RINGS FOR SOLID NEEDLE ROLLER BEARINGS (INCH DESIGN)

B 160

2.52.95

3.152.753.35

3.053.65

4.95.55.55

6.156.4

HJ-8811240HJ-8811248

HJ-9211648HJ-9612040HJ-9612048

HJ-10412840HJ-10412848

HJ-11614648HJ-12415448HJ-13216248

HJ-14017048HJ-14817848

2.52.5

333

33

333

44

Matching Solid NeedleRoller Bearings

HJ

Mass(kg)

approx

FilletRadius of

Shaft (mm)ra

max

IR

Bore Diameter 114.300 - 203.200 mm

114.300

120.650127.000

139.700

152.400165.100177.800

190.500203.200

4.5000

4.75005.0000

5.5000

6.00006.50007.0000

7.50008.0000

5.50005.5000

5.75006.00006.0000

6.50006.5000

7.25007.75008.2500

8.75009.2500

139.700139.700

146.050152.400152.400

165.100165.100

184.150196.850209.550

222.250234.950

63.5076.20

76.2063.5076.20

63.5076.20

76.2076.2076.20

76.2076.20

IR-728840IR-728848

IR-769248IR-809640IR-809648

IR-8810440IR-8810448

IR-9611648IR-10412448IR-11213248

IR-12014048IR-12814848

φd

ra

B

φF

Boundary Dimensions(mm, inch)

d F BInner Ring Numbers

Page 109: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 162 B 163

NSK NEEDLE BEARING

B 163

Fig. 1

THRUST BEARINGSCAGE & NEEDLE ROLLER ASSEMBLIES FOR THRUST NEEDLE BEARINGS

Metric Design Bore Diameter 10-100 mm ................................................. B168-B169

Inch Design Bore Diameter 6.350-104.775 mm ..................................... B170-B171

THRUST NEEDLE BEARINGS WITH INTEGRATED RACEWAY WASHERS

Metric Design (FB) Bore Diameter 20-55 mm ................................................... B172-B173

Metric Design (FH, FG) Bore Diameter 22.6-43 mm ................................................ B174-B175

Thrust needle bearings type comes in metric and inch designs.The cage & Needle roller assembly for the thrust needle bearing is a

cage that has two pieces joined together (refer to Fig. 1), to which surfacehardening is applied after the precision press processing of a steel plate,and in which high accuracy rollers are incorporated, in order to achieverigidity and wear resistance. Many rollers are retained securely in the cage,taking large axial load, and yet rotating smoothly. Mounting space is sosmall that it is easy to replace a conventional sliding thrust washer.Different thicknesses of various types of thrust raceway washers areavailable in this cage & Needle roller assembly, which allows selection ofthe appropriate thickness suited for bearing peripheral mounting conditions.

Pages

Page 110: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 165

NSK NEEDLE BEARINGTHRUST BEARINGS

B 164

Code

Metric

Inch

FNTA

FB, FG, FH

NTA, NTC

Cage & Needle roller assemblies for thrust needle bearings

Thrust needle bearings with integrated raceway washers

Cage & Needle roller assemblies for thrust needle bearings

Description

Table 1 Bearing Types

The composition of bearing numbers is as follows:(Example) FNTA-2035

Outside Diameter (mm)Bore Diameter (mm)Type Code

Table 2 Raceway Washers of Thrust Needle BearingsUnits: mm

Metric

Type Thickness ThicknessType

Inch

FTRA

FTRB

FTRC

FTRD

FTRE

1.0

1.5

2.0

2.5

3.0

TRA

TRB

TRC

TRD

TRE

TRF

0.8

1.6

2.4

3.2

4.0

4.8

Type

Several types of thrust bearings are shown in Table 1.For inch bearings, the dimension number is expressed in integers in units

of 1/16 inch.Raceway washers are available for use when the raceway surface cannot

be hardened by heat treatment and ground to the proper finish.Types of raceway washers used for cage & Needle roller assemblies in

thrust needle bearings are shown in Table 2.

Other than the rings shown in Table 2, raceway washers with flanges at thebore or outside are also available.

Accuracy

Thrust Needle Bearings

NSK metric FNTA cage & Needle roller assemblies conform with ISOcriteria, and the fitting tolerance of the cage born diameter is E11 and thatof the outside diameter is c12.

The dimensional tolerances for inch NTA cage & Needle rollerassemblies, and metric and inch thrust raceway washers are shown in thedimensional table. The accuracy class of the rollers is Class 3 of ISO.

Page 111: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 167

NSK NEEDLE BEARINGTHRUST BEARINGS

B 166

Fig. 2 Fig. 3

Classification

Thrust Needle Bearing Cage & NeedleRoller Assembly

Thrust Needle Bearing RacewayWasher

TypeCage or Raceway

Washer Guide

Fitting Class or Tolerance

Shaft Housing Bore

FNTABore

Outside

Bore

Outside

Bore

Outside

Bore

Outside

NTA

NTC

FTRA ― FTRE

TRA ― TRF

h8

0-0.075

Dc+over 1.0

H10

Dc+over 1.0

H10

Dc+over 1.0

H10

Dc+over 1.0

H10

h8

0-0.075

Table 4 Recommended Fitting for Thrust BearingUnits: mm

Remarks Dc in the table to the bore and outside surface of the cage.Please consult NSK regarding fitting of bearing types other than those shown in Table 4.

Application

Thrust Needle Bearings

When using FNTA and NTA cage & Needle roller assemblies, using thegear side as a raceway ring saves bearing space (refer to Fig. 2).

In general, the accuracy, surface roughness, and hardness of the racewaycomponents should satisfy the specifications shown in Table 3.

When a cage & Needle roller assembly cannot be used by itself, a thrustraceway washer should be employed. The raceway washer should beselected after considering washer support face and the volume of the load.The thrust raceway washer should be set to prevent sliding between thecontact surfaces.

When the area supporting the raceway washer is sufficiently large, a thinraceway washer, such as the FTRA and TRA types, can be used. It shouldbe noted that even if the washers of the FTRA and TRA types are warped, anaxial load of more than approximately 196 N{20 kgf}will flatten them.

When the support face of the shaft or housing is small (refer to Fig. 3).FTRE and TRD types, which are thick-wall raceway washers, or any of theother thicker types should be used. In any case, to bring out the fullperformance of the bearing, the squareness of the support face should beensured and sufficient space is needed in the support face.

For squareness of the raceway washer support face, the values shown inTable 3 are applied. Please consult NSK regarding shape and accuracy.

Bearing Guide

The cages used in FNTA and NTA cage & Needle roller assemblies areguided by the shaft along their extended cage bore.

Bore diameter tolerance is smaller than that for the outside diameter, andas relative speed at the guide face is slow, the bore guiding method iseffective. When the outside of the cage is guided, it is necessary for thehousing guide surface to be hardened, at least on its surface, to protect itfrom wear.

Fitting

Recommended fittings for thrust needle bearings is shown in Table 4.Squareness A

Squareness B

Roughness, (1) Ra

0.5/1000 (mm/mm )

1.0/1000 (mm/mm )

0.4

HRC 58 to 64 (HRC60 to 64 is favorable)

Table 3 Specifications of Thrust Bearing Raceway Surface

Notes (1) Refer to Section 5.2 on page A34 for details.(2) Refer to Section 5.3 on page A35 for details.

Hardness, (2)

Page 112: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 169

NSK NEEDLE BEARINGTHRUST BEARINGS

B 168

Thrust Needle Bearings

FNTA (Thrust Cage & Needle Roller Assemblies)

FTRA (Thrust Bearing Rings s = 1.0)

FTRB (s = 1.5)

FTRC (s = 2.0)

FTRD (s = 2.5)

FTRE (s = 3.0)

Bore Diameter 10 - 100 mm

242626

282930

313542

475260

657078

859095

100105110

120135

222

222

222

223

333

334

444

44

7 7508 3508 050

7 9508 2008 400

8 60011 90014 800

16 50017 30026 900

28 70030 50037 000

43 00045 50059 000

60 00063 00064 500

80 00098 500

23 00026 30025 400

25 80027 10028 400

29 70047 00066 000

79 00088 000

122 000

137 000152 000201 000

252 000274 000320 000

335 000365 000380 000

515 000695 000

790855825

810835855

8751 2201 510

1 6801 7702 740

2 9303 1003 750

4 4004 6006 000

6 1506 4506 550

8 15010 000

17 00016 00016 000

15 00014 00014 000

13 00012 000

9 500

8 5008 0006 700

6 3005 6005 300

4 8004 5004 300

4 0003 8003 600

3 4003 000

FNTA-1024FNTA-1226FNTA-1326

FNTA-1528FNTA-1629FNTA-1730

FNTA-1831FNTA-2035FNTA-2542

FNTA-3047FNTA-3552FNTA-4060

FNTA-4565FNTA-5070FNTA-5578

FNTA-6085FNTA-6590FNTA-7095

FNTA-75100FNTA-80105FNTA-85110

FNTA-90120FNTA-100135

*FTRA-1024FTRA-1226FTRA-1326

FTRA-1528FTRA-1629FTRA-1730

FTRA-1831FTRA-2035FTRA-2542

FTRA-3047FTRA-3552FTRA-4060

FTRA-4565FTRA-5070FTRA-5578

FTRA-6085FTRA-6590FTRA-7095

FTRA-75100FTRA-80105FTRA-85110

FTRA-90120FTRA-100135

FTRB-1024FTRB-1226FTRB-1326

FTRB-1528FTRB-1629FTRB-1730

FTRB-1831FTRB-2035FTRB-2542

FTRB-3047FTRB-3552FTRB-4060

FTRB-4565FTRB-5070FTRB-5578

FTRB-6085FTRB-6590FTRB-7095

FTRB-75100FTRB-80105FTRB-85110

FTRB-90120FTRB-100135

FTRC-1024FTRC-1226FTRC-1326

FTRC-1528FTRC-1629FTRC-1730

FTRC-1831FTRC-2035FTRC-2542

FTRC-3047FTRC-3552FTRC-4060

FTRC-4565FTRC-5070FTRC-5578

FTRC-6085FTRC-6590FTRC-7095

FTRC-75100FTRC-80105FTRC-85110

FTRC-90120FTRC-100135

―――

FTRD-1528FTRD-1629FTRD-1730

FTRD-1831FTRD-2035FTRD-2542

FTRD-3047FTRD-3552FTRD-4060

FTRD-4565FTRD-5070FTRD-5578

FTRD-6085FTRD-6590FTRD-7095

FTRD-75100FTRD-80105FTRD-85110

FTRD-90120FTRD-100135

―――

FTRE-1528FTRE-1629FTRE-1730

FTRE-1831FTRE-2035FTRE-2542

FTRE-3047FTRE-3552FTRE-4060

FTRE-4565FTRE-5070FTRE-5578

FTRE-6085FTRE-6590FTRE-7095

FTRE-75100FTRE-80105FTRE-85110

FTRE-90120FTRE-100135

2 3502 6802 590

2 6302 7702 900

3 0504 8006 750

8 1008 950

12 400

14 00015 50020 500

25 70028 00033 000

34 50037 50039 000

52 50071 000

222424

262728

293340

4550.557

626775

8287.592.5

97.5102.5107.5

117.5132.5

11.513.514.5

16.517.518.5

19.521.526.5

31.536.542

4751.557

61.566.571.5

76.581.586.5

91.5101.5

2.33.43.3

3.53.73.8

4.05.47.7

8.99.7

18

202229

353852

545863

80105

2.93.33.1

3.53.63.8

3.95.17.0

7.99.1

12

131519

222425

272830

3850

101213

151617

182025

303540

455055

606570

758085

90100

φDc

(1)c12 φDpφDc1

(1)E11

φDw

FNTA FTRA

s0–0.005

–0.25–0.75 φDP1

+0.30+0.05 φDe φD i

FTRB FTRC FTRD FTRE

BearingNumbers

Roller ContactSurfaces(mm)

De D i

min max

Mass approx

(g)

FNTA FTRA

Boundary Dimensions(mm)

DC1,DP1 DC,DP DW

Matching Bearing Rings

s=1.0 s=1.5 s=2.0 s=2.5 s=3.0

Basic Load Ratings(N) {kgf}

Ca Coa Ca Coa

LimitingSpeeds(min-1)

Oil0-0.08

±0.05 0-0.08

0-0.08

0-0.08

Note (1) For tolerance classes c12 and E11, please refer to pages C58 and C60, respectively. * The tolerance of this bearing’s bore diameter is +0.025 to+0.175 mm and its outside diameter tolerance is-0.040 to-0.370 mm.

Page 113: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 171

NSK NEEDLE BEARINGTHRUST BEARINGS (INCH DESIGN)

B 170

Thrust Needle Bearings

NTA (Thrust Cage & Needle Roller Assemblies)

NTC

TRA (Thrust Bearing Rings s = 0.8)

TRB (s = 1.6)

TRC (s = 2.4)

TRD (s = 3.2)

TRE (s = 4.0)

Bore Diameter 6.350 - 104.775 mm

0.2500―

0.3750

0.5000―

0.62500.7500

0.8750

1.00001.1250

1.25001.3750

1.50001.7500

2.00002.1250

2.2500

2.50002.7500

3.00003.2500

3.75004.1250

17.45019.05020.625

23.80025.400

28.57531.750

36.50042.850

39.67544.450

49.20052.375

55.55063.500

69.85073.025

76.20079.375

82.55092.075

95.250104.775

117.475128.575

―0.7500―

―1.0000

1.12501.2500

――

―1.7500

――

―2.5000

2.75002.8750

3.00003.1250

3.25003.6250

3.75004.1250

4.6250―

1.9841.9841.984

1.9841.984

1.9841.984

1.9841.984

1.9841.984

1.9841.984

1.9841.984

1.9841.984

1.9843.175

1.9843.175

1.9843.175

3.1753.175

―――

――

――

――

――

――

――

――

―0.1250

―0.1250

―0.1250

0.12500.1250

4 4004 9505 200

6 1506 600

8 1009 000

11 60016 300

12 00014 800

17 70018 700

20 40020 400

21 10021 400

21 80033 500

22 40042 500

23 70046 000

50 00057 000

1 0101 2301 350

1 7902 020

2 7203 250

4 7507 600

5 1006 950

9 05010 000

11 40011 900

12 80013 300

13 80017 500

14 70025 300

16 60029 200

34 00041 000

9 90012 10013 200

17 60019 800

26 60032 000

46 50074 500

50 00068 000

88 50098 000

112 000117 000

126 000131 000

135 000172 000

145 000248 000

163 000287 000

335 000405 000

24 00022 00020 000

18 00017 000

15 00013 000

11 0009 500

10 0009 000

8 0007 500

7 5006 700

6 0005 600

5 3005 000

5 0004 500

4 3003 800

3 4003 200

NTA-411NTA-512NTA-613

NTA-815NTA-916

NTA-1018NTA-1220

NTA-1423NTC-1427

NTA-1625NTA-1828

NTA-2031NTA-2233

NTA-2435NTA-2840

NTA-3244NTA-3446

NTA-3648NTA-3650 (1)

NTA-4052NTA-4458 (1)

NTA-4860NTA-5266 (1)

NTA-6074 (1)NTA-6681 (1)

TRA-411

TRA-512

TRA-613

TRA-815

TRA-916

TRA-1018

TRA-1220

TRA-1423

TRA-1625

TRA-1828

TRA-2031

TRA-2233

TRA-2435

TRA-2840

TRA-3244

TRA-3446

TRA-3648

TRA-4052 (2)TRA-4458 (2)

TRA-4860 (2)TRA-5266 (2)

TRA-6074 (2)TRA-6681 (2)

TRB-411

TRB-512

TRB-613

TRB-815

TRB-916

TRB-1018

TRB-1220

TRB-1423

TRB-1427

TRB-1625

TRB-1828

TRB-2031

TRB-2233

TRB-2435

TRB-2840

TRB-3244

TRB-3446

TRB-3648

TRB-4052 (2)TRB-4458 (2)

TRB-4860 (2)―

TRB-6074 (2)―

TRC-411

―TRC-613

TRC-815

TRC-916

TRC-1018

TRC-1220

TRC-1423

TRC-1427

TRC-1625

TRC-1828

TRC-2031

TRC-2233

TRC-2435

TRC-2840

TRC-3244

TRC-3446

TRC-3648

TRC-4052 (2)TRC-4458 (2)

――

TRC-6074 (2)TRC-6681 (2)

―――

――

TRD-1018

TRD-1220

TRD-1423

TRD-1427

TRD-1625

TRD-1828

TRD-2031

TRD-2233

TRD-2435

TRD-2840

TRD-3244

TRD-3446

TRD-3648

TRD-4052 (2)TRD-4458 (2)

TRD-4860 (2)TRD-5266 (2)

TRD-6074 (2)TRD-6681 (2)

―――

――

TRE-1018

TRE-1220

――

TRE-1625

―TRE-2233

――

――

――

――

――

――

450505530

625670

825915

1 1801 660

1 2201 510

1 8001 910

2 0802 080

2 1502 190

2 2203 450

2 2904 350

2 4104 700

5 1005 800

1617.519

2223.5

2730

34.541

3842.5

47.550.5

53.560

66.569.5

72.576.5

7989

92102

114.5125.5

7.59

10.5

1415.5

1720

23.525

26.529.5

3336

3945.5

5255

58.558.5

64.571.5

77.584

97106.5

1.41.81.8

2.32.7

3.24.1

5.09.1

5.98.6

9.510

1114

1516

1729

1937

2242

5062

1.41.41.4

1.82.3

2.73.2

4.1―

4.55.9

6.87.3

7.79.5

1112

12―

1418

1620

2327

6.3507.9259.525

12.70014.275

15.87519.050

22.225

25.40028.575

31.75034.925

38.10044.450

50.80053.975

57.150

63.50069.850

76.20082.550

95.250104.775

φDp

NTANTC

TRA

sφDw

0–0.005

–0.25–0.76φDc

–0.25–0.52 φDc1

+0.18+0.05

φDp1+0.30+0.05 φDe φD i

TRB TRC TRD TRE

BearingNumbers

Roller ContactSurfaces

(mm)De D i

min max

Mass (g)

approxNTA TRA

Boundary Dimensions(mm, inch)

DC1,DP1 DC,DP DW

Matching Bearing Rings

s=0.8 s=1.6 s=2.4 s=3.2 s=4.0

Basic Load Ratings(N) {kgf}

Ca Coa Ca Coa

LimitingSpeeds(min-1)

Oil+0.01-0.04

0-0.08

+0.01-0.07

0-0.08

-0.01-0.09

Notes (1) Tolerance of cage bore diameter is +0.05 to +0.25mm, and tolerance of cage outside diameter is-0.25 to -0.64mm.

(2) Tolerance of bearing ring bore diameter is +0.05 to -0.43mm.

Page 114: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 173

NSK NEEDLE BEARINGTHRUST BEARINGS

B 172

Thrust Needle Bearings

FB (With Integrated Raceway Washers)

FTRA (Thrust Bearing Rings s = 1.0)

FTRB (s = 1.5)

FTRC (s = 2.0)

FTRD (s = 2.5)

FTRE (s = 3.0)

Bore Diameter 20 - 55 mm

FTRA-2035

FTRA-3047FTRA-3553

FTRA-4060FTRA-4565

FTRA-5070FTRA-5575

FTRB-2035

FTRB-3047FTRB-3553

FTRB-4060FTRB-4565

FTRB-5070FTRB-5575

FTRC-2035

FTRC-3047FTRC-3553

FTRC-4060FTRC-4565

FTRC-5070FTRC-5575

FTRD-2035

FTRD-3047FTRD-3553

FTRD-4060FTRD-4565

FTRD-5070FTRD-5575

FTRE-2035

FTRE-3047FTRE-3553

FTRE-4060FTRE-4565

FTRE-5070FTRE-5575

31

4348.5

5560.5

65.570.5

21

3136.5

4146

5156

13

1619

2527

3032

35

4753

6065

7075

2.8

2.82.8

2.82.8

2.82.8

9 450

12 70015 600

20 20020 400

21 20022 500

34 500

56 50077 000

112 000117 000

126 000140 000

965

1 3001 590

2 0602 080

2 1602 290

13 000

9 0008 000

7 1006 300

6 0005 600

FB502002

FB503002FB503503

FB504001FB504501

FB505002FB505501

3 550

5 7507 850

11 40011 900

12 80014 300

20

3035

4045

5055

φDc

(1)E11φD

FB FTRA

s

–0.05–0.30 φDP1

+0.30+0.05

φDp–0.25–0.75 φDP1

+0.30+0.05

T1+0.030–0.036

φDeφD i

FTRB FTRC FTRD FTRE

BearingNumbers

Roller ContactSurfaces

(mm)De D i

min max

Mass (g)

approx

Boundary Dimensions(mm)

DC,DP1 DC,DP T1

Matching Bearing Rings

s=1.0 s=1.5 s=2.0 s=2.5 s=3.0

Basic Load Ratings(N) {kgf}

Ca Coa Ca Coa

LimitingSpeeds(min-1)

Oil0-0.08

±0.05 0-0.08

0-0.08

0-0.08

Note (1) For tolerance classes E11, please refer to pages C60.

Page 115: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 175

NSK NEEDLE BEARINGTHRUST BEARINGS

B 174

Thrust Needle Bearings

FH (With Integrated Raceway Washers)

FG

Bore Diameter 22.6 - 43 mm

φD φD φDc1φD1φd

T T1

Example 1 Example 2

φd1 φd φDc

BT1

Example 3

―――

――――

28.5753035

384245

48.45258

―――

――

38.745.953

54.02707878.1

46.324753

57.361.9864

68.4872.178

4552.548

47.860

―――

――――

―――

―――

―――

455248

4860.05

3.8943.6043.8

3.604444

3.812.8242.824

2.813.812.8

3.812.812.8

2.7942.812.794

2.7942.8

―――

――――

―――

―――

―――

3.433.433.43

3.433.43

10 10015 30013 700

11 40020 30020 40010 200

19 80012 70015 600

15 60024 70020 400

25 00021 00023 300

13 20017 20013 400

13 40016 900

4 1007 2506 700

5 35012 20012 8005 350

7 6005 7507 850

7 95011 20011 900

11 90012 80015 200

6 1008 9506 450

6 4509 350

40 00071 00066 000

52 500120 000125 000

52 500

74 50056 50077 000

78 000110 000117 000

117 000126 000149 000

60 00088 00063 000

63 00091 500

11 0009 0008 000

7 5006 0005 3005 300

9 0009 0008 000

7 5006 7006 300

6 0005 6005 300

9 0007 5008 500

8 5006 700

FH502201AFH502702AFH503604-1

FH503901AFH504801FH505802FH506401

FG502602FG503006FG503502

FG503804FG504201FG504501

FG504801FG505203FG505801

FG501903FG502801FG503002

FG503301FG504302

1 0301 5601 400

1 1602 0702 0801 040

2 0201 3001 590

1 5902 5202 080

2 5502 1402 380

1 3401 7601 370

1 3701 720

111

1111

222

222

222

333

33

16.520.224.1

20.542.444.632.7

20.214.818.2

20.931.723.2

35.528.131.8

19.82316.3

14.120.9

22.627.736

39.3548.858.564.4

26.23035

38.54245

48.45258

192830.5

33.543

Bearing Numbers Example

Mass (g)

approx

Boundary Dimensions(mm)

d,D1 DC1 D,d1 DC T,T1 B

Basic Load Ratings(N) {kgf}

Ca Coa Ca Coa

LimitingSpeeds(min-1)

Oil

Page 116: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 176 B 177

NSK NEEDLE BEARING

Code

Metric

Inch

Details

FCR

FCRS

FCJ

FCJS

CR

CRS

Full complement, without seal

Full complement, with seal, with thrust washer

With Cage, without seal

With Cage, with seal, with thrust washer

Full complement

Full complement, with seal, with thrust washer

Table 1 Bearing Types

CAM FOLLOWERS (STUD TYPE TRACK ROLLERS)

Metric Design Outside Diameter 10-90 mm .................................................................. B182-B185

Inch Design Outside Diameter 12.700-152.400 mm .................................................. B186-B189

Cam followers, which are equipped with a thick-wall outer ring, crownedrollers, and a stud with a hardened raceway surface, are especially toughand can sustain shock loads.

Types

Cam followers are available in the standard types shown in Table 1.These standard bearings have a screwdriver slot built into the stud head,while the outer ring has a cylindrical outside surface.

Bearings of the following unique specifications are available formanufacture upon request:

1. Hexagonal socket of the stud head (refer to the Bearing Table)2. Eccentric bush fixed to the stud to make it an eccentric stud (refer to

the Bearing Table) 3. An outer ring with a spherical outside surface (refer to page B179)These specifications are indicated in the bearing number. Please use the

Formulation of Bearing Numbers as indicated on the following page whenplacing orders.

In addition to the above, products with their exposed surfaces treated witha black oxide layer to enhance corrosion resistance, as well as products ofspecial shapes and specifications, can also be manufactured. Please contactNSK for further details.

Pages

Page 117: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 179

NSK NEEDLE BEARINGCAM FOLLOWERS

B 178

R

Bearing Number

All Bearing Numbers

R

500

Table 2 Spherical Radius, R, of Metric BearingsUnits: mm

Table 3 Spherical Radius, R, of Inch BearingsUnits: mm

Bearing Number ( 1 ) R R RBearing Number ( 1 ) Bearing Number ( 1 )

CRC-8

CRC-8-1

CRC-10

CRC-10-1

CRC-12

CRC-14

CRC-16

CRC-18

150

180

180

200

250

250

300

300

CRC-20

CRC-22

CRC-24

CRC-26

CRC-28

CRC-30

CRC-32

CRC-36

360

360

500

500

500

500

600

600

CRC-40

CRC-44

CRC-48

CRC-52

CRC-56

CRC-64

CRC-80

CRC-96

760

760

760

760

760

760

1200

1400

Note (1) This uses CRC bearings as an example. However, since dimension series are the same, the R dimensionsshown in the above table should also be applied to CRSC bearings.

Table 4 Cam Follower Dimensional TolerancesUnits: pm

Type

Metric

Inch

Stud Diameter Deviation,ddmp,

or Fitting Tolerance

Single Plane Mean OutsideDiameter Deviation. dDmpCylindricalOutside

SphericalOutside

Deviation ofOuter Ring Width C,

dCs

FCR, FCRS,FCJ, FCJS

According toISO Class 0

According to ISO Class 0

CR, CRS

h7

+250

0-25

0-50

0-130

0-50

Formulation of Bearing Numbers

(Example) FCRE-16 Full complement, with screwdriver slot, witheccentric bush, outside diameter of outer ring is16 mm

FCJSB-16 With cage, with seal/thrust washer, with hexagonalsocket, outside diameter of outer ring is 16 mm

FCRSBE-16R Full complement, with seal/thrust washer, withhexagonal socket, with eccentric bush, outsidediameter of outer ring is 16 mm and the outer ringhas a spherical outside surface

(Example) CRE-8 Full complement, with screwdriver slot, witheccentric bush, outside diameter of outer ring is12.700 mm (8/16 inch)

CRSB-8 Full complement, with seal/thrust washer, withhexagonal socket, outside diameter of outer ring is12.700 mm (8/16 inch)

CRSBCE-8 Full complement, with seal/thrust washer, withhexagonal socket, with eccentric bush, outsidediameter of outer ring is 12.700 mm (8/16 inch) andthe outer ring has a spherical outside surface

Omitted: Outer ring has acylindrical outside surface.

R: Outer ring has a spherical outsidesurface.

Outside diameter of outer ring in mmOmitted: Without bushE: With eccentric bush

Omitted: Stud head with screwdriver slotB: Stud head with hexagonal socket

FCR

FCRS

FCJ

FCJS

B E 16 RMetric

Outside diameter of outer ring in1/16-inch units(Example)

8=8/16 =1/2"16=16/16=1"32=32/16=2"36=36/16=21/4"

Omitted: Without bushE: With eccentric bush

Omitted: Outer ring has a cylindrical outsidesurface.

C: Outer ring has a spherical outside surface.Omitted: Stud head with screw driver slotB: Stud head with hexagonal socket

CR

CRSB C E 8Inch

Spherical Radius of Outer Ring Outside

Spherical radii for metric bearings are shown in Table 2 and for inchbearings in Table 3.

Accuracy

NSK cam followers are manufactured with the dimensional tolerancesshown in Table 4. Running accuracy is subject to ISO Class 0 and isalways applied to the bearing before surface treatment.

Page 118: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 181

NSK NEEDLE BEARINGCAM FOLLOWERS

B 180

Accessories

NSK cam followers include a sealing plug but the nut, washer andgrease nipple are available as accessories. When ordering, please add thepart code shown in Table 5 after the bearing number.

Applications

Fitting

The recommended fittings for the mounting area of cam follower studsare shown in Table 6. Since cam followers use cantilever mounting, thefitting for the stud and mounting hole should be assembled with as littleplay as possible. In case there is interference in the fitting of the stud andmounting hole, the center of the stud end should be inserted with a press.The side plate should be securely fixed onto the plane surface square tothe center axis, without play. In order to get a sufficient support face forthe side plate, the dimension of the shoulder should be larger than thevalue of F shown in the bearing table. Play in the mounting part should beavoided because it would not only cause inclination to the stud but alsocreate considerable deflection when a load is imposed. The load wouldalso be unevenly imposed on the rollers due to edge contact between theouter ring and track (on which the outer ring runs).

Maximum Permissible Load

The maximum radial load that the cam follower can carry is determined bythe bearing strength and shear strength of the stud rather than the load ratingfor needle bearings. This value is given in the bearing table as the maximumpermissible load.

The cam follower can deliver a performance of the maximum strength ofstud by mounting securely to the side plate so as to minimize overhang. It isnecessary, therefore, to minimize chamfering at the corner of the studmounting hole and avoid burrs.

Permissible Track Load

The permissible load of the track is determined by compression strength orhardness. The permissible load of the track shown in the bearing table isthe value of a track made of steel with a hardness of HRC40.

Table 7 indicates the permissible load coefficient of the track for eachhardness.

The permissible load of the track for each hardness can be obtained bymultiplying the permissible load of the track shown in the bearing table bythe permissible load coefficient of the track corresponding to each hardness.

Maximum Clamp Torque

Since the stud of the cam follower receives bending stress and tensilestress from the bearing load, the screw clamp torque should not exceed thevalue shown in the bearing table. The clamp torque (maximum) in thebearing table is the value when the thread is lubricated and the value whendry should be approximately doubled.

Pre-packed Grease

The cam follower with a seal is pre-lubricated with lithium soap-basedgrease and the working temperature range is -10 to +110°C.

Type Sealing Plug Grease Nut Washer Nipple

FCR, FCJ, CR

FCRS, FCJS, CRS

Included

Included

Not pre-packedI N Z

pre-packed

Table 5 Part Code of Accessories

[Example] FCR-16 + I N Z

NippleWasherNut

Type

Metric

Inch

FCR, FCJ, FCRS, FCJS

CR, CRS

JS7 (J7)

F7

Fitting Tolerance ofMounting Hole

Table 6 Recommended Fitting for Stud Mounting Part

Hardness (HRC) Coefficient

20

25

30

35

40

45

50

55

58

0.4

0.5

0.6

0.8

1.0

1.4

1.9

2.6

3.2

Table 7 Permissible Load Coefficient of Track

Page 119: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

φD φd

C

φM1φM1

G1

G

φM2

B1

B2

B3

FCR

r

B 183

NSK NEEDLE BEARINGCAM FOLLOWERS

B 182

FCR (Full Complement)

Full Complement, Sealed,FCRS ( )With Thrust Washer

FCJ (With Cage)

Sealed, With Cage andFCJS ( )Thrust Washer

Outside Diameter 10 - 62 mm

7

88

1111

1111

1212

1212

1414

1414

1818

2020

2424

2424

2929

3

44

66

88

1010

1010

1212

1212

1616

1818

2020

2020

2424

M3X0.5

M4X0.7M4X0.7

M6X1.0M6X1.0

M8X1.25M8X1.25

M10X1.25M10X1.25

M10X1.25M10X1.25

M12X1.5M12X1.5

M12X1.5M12X1.5

M16X1.5M16X1.5

M18X1.5M18X1.5

M20X1.5M20X1.5

M20X1.5M20X1.5

M24X1.5M24X1.5

5

66

88

1010

1212

1212

1313

1313

1717

1919

2121

2121

2525

――

――

――

――

――

66

66

88

88

99

99

1111

――

――

――

――

――

33

33

33

33

44

44

44

――

4(1)4(1)

4(1)4(1)

4(1)4(1)

4(1)4(1)

66

66

66

66

88

88

88

17

2020

2828

3232

3636

3636

4040

4040

5252

5858

6666

6666

8080

0.3

0.30.3

0.30.3

0.30.3

0.30.3

0.30.3

0.60.6

0.60.6

0.60.6

11

11

11

11

FCJB-10

FCJ-12FCJB-12

FCR-16FCJ-16

FCR-19FCJ-19

FCR-22FCJ-22

FCR-26FCJ-26

FCR-30FCJ-30

FCR-32FCJ-32

FCR-35FCJ-35

FCR-40FCJ-40

FCR-47FCJ-47

FCR-52FCJ-52

FCR-62FCJ-62

FCRS-16FCJS-16

FCRS-19FCJS-19

FCRS-22FCJS-22

FCRS-26FCJS-26

FCRS-30FCJS-30

FCRS-32FCJS-32

FCRS-35FCJS-35

FCRS-40FCJS-40

FCRS-47FCJS-47

FCRS-52FCJS-52

FCRS-62FCJS-62

9

1111

1616

2020

2323

2323

2525

2525

32.532.5

36.536.5

40.540.5

40.540.5

49.549.5

10

12

16

19

22

26

30

32

35

40

47

52

62

1 390

1 9701 970

5 8002 830

6 6003 450

8 5504 350

8 5504 350

12 5007 200

12 5007 200

18 6009 700

20 50010 300

28 20019 200

28 20019 200

40 00024 900

142

201201

590288

670355

875445

875445

1 280735

1 280735

1 900990

2 0901 050

2 8801 950

2 8801 950

4 1002 540

28

6464

226226

550550

1 0601 060

1 0601 060

1 4501 450

1 4501 450

4 0004 000

5 9505 950

8 4508 450

8 4508 450

15 20015 200

2.9

6.56.5

2323

5656

108108

108108

148148

148148

410410

605605

860860

860860

1 5501 550

590

1 0501 050

2 3602 360

4 2004 200

6 5506 550

6 5506 550

9 2509 250

9 2509 250

17 00017 000

21 70021 700

26 40026 400

26 40026 400

38 50038 500

60

107107

240240

425425

665665

665665

945945

945945

1 7401 740

2 2202 220

2 6902 690

2 6902 690

3 9503 950

1 320

1 8601 860

3 3503 350

4 1504 150

5 3005 300

6 0006 000

7 8007 800

8 0508 050

11 80011 800

14 30014 300

20 80020 800

22 90022 900

34 00034 000

135

190190

340340

425425

540540

610610

795795

820820

1 2001 200

1 4601 460

2 1202 120

2 3402 340

3 4503 450

0.005

0.0080.008

0.0200.018

0.0310.030

0.0470.045

0.0600.058

0.0880.086

0.0990.096

0.170.165

0.250.24

0.390.38

0.470.455

0.800.79

2.5

―2.5

44

44

55

55

66

66

1010

1010

1212

1212

1414

――

88

1010

1111

1111

1212

1212

15.515.5

17.517.5

19.519.5

19.519.5

24.524.5

――

99

1111

1313

1313

1717

1717

2222

2424

2727

2727

3434

――

0.50.5

0.50.5

0.50.5

0.50.5

11

11

11

11

11

11

11

7.5

99

1111

1313

1515

1515

2020

2020

2424

2626

3131

3131

4545

X

B4

E

FCRS FCRB FCRE

0–0.25

0–0.05φd1

φF

ra(2)

Bearing Numbers

FCR FCRSFCJ FCJS

Mass (kg)

approx

BoundaryDimensions (mm)

D C d

Dimensions(mm)

ScrewG G1 B1 B2 B3 M2 M1 r

min

Basic DynamicLoad Ratings

(N) {kgf}

Cr

Limiting Loads

(N) {kgf}

Pmax

Eccentric BushDimensions

(mm) ( 4 )

B4 d1 E

*1

(mm)

X

*2

(mm)

Fmin

Limiting TrackLoads

(N) {kgf}

TighteningTorque ( 5 )

(N・cm) {kgf・cm}

max max

*1 Dimensions of Hexagonal Socked (width across flats) (3)*2 Shoulder Dimensions

Note (1) Only the head of the stud has an oil hole.Remarks Standard grease is packed in sealed cam followers, but not in cam followers without seals.

Notes (2) Should not be greater than r (min).(3) Applicable to FCRB only.(4) Applicable to FCRE only.(5) These values are for when the screw is oiled; they should be approximately doubled when the screw is dry.

Page 120: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

φD φd

C

φM1φM1

G1

G

φM2

B1

B2

B3

FCR

r

B 185

NSK NEEDLE BEARINGCAM FOLLOWERS

B 184

FCR (Full Complement)

Full Complement, Sealed,FCRS ( )With Thrust Washer

FCJ (With Cage)

Sealed, With Cage andFCJS ( )Thrust Washer

Outside Diameter 72 - 90 mm

2929

3535

3535

3535

2424

3030

3030

3030

M24X1.5M24X1.5

M30X1.5M30X1.5

M30X1.5M30X1.5

M30X1.5M30X1.5

2525

3232

3232

3232

1111

1515

1515

1515

44

44

44

44

88

88

88

88

8080

100100

100100

100100

11

11

11

11

FCR-72FCJ-72

FCR-80FCJ-80

FCR-85FCJ-85

FCR-90FCJ-90

FCRS-72FCJS-72

FCRS-80FCJS-80

FCRS-85FCJS-85

FCRS-90FCJS-90

49.549.5

6363

6363

6363

72

80

85

90

40 00024 900

60 50039 000

60 50039 000

60 50039 000

4 1002 540

6 2004 000

6 2004 000

6 2004 000

15 20015 200

30 50030 500

30 50030 500

30 50030 500

1 5501 550

3 1203 120

3 1203 120

3 1203 120

38 50038 500

61 00061 000

61 00061 000

61 00061 000

3 9503 950

6 2006 200

6 2006 200

6 2006 200

38 00038 000

52 00052 000

55 50055 500

59 00059 000

3 8603 860

5 3005 300

5 6505 650

6 0006 000

1.051.05

1.551.55

1.751.75

1.951.95

1414

1717

1717

1717

24.524.5

3131

3131

3131

3434

4040

4040

4040

11

1.51.5

1.51.5

1.51.5

4545

5252

5252

5252

X

FCRS FCRB FCRE

0–0.25

0–0.05φd1

φF

ra(2)

B4

E

Bearing Numbers

FCR FCRSFCJ FCJS

Mass (kg)

approx

BoundaryDimensions (mm)

D C d

Dimensions(mm)

ScrewG G1 B1 B2 B3 M2 M1 r

min

Basic DynamicLoad Ratings

(N) {kgf}

Cr

Limiting Loads

(N) {kgf}

Pmax

Eccentric BushDimensions

(mm) ( 4 )

B4 d1 E

*1

(mm)

X

*2

(mm)

Fmin

Limiting TrackLoads

(N) {kgf}

TighteningTorque ( 5 )

(N・cm) {kgf・cm}

max max

*1 Dimensions of Hexagonal Socked (width across flats) (3)*2 Shoulder Dimensions

Remarks Standard grease is packed in sealed cam followers, but not in cam followers without seals. Notes (2) Should not be greater than r (min).(3) Applicable to FCRB only.(4) Applicable to FCRE only.(5) These values are for when the screw is oiled; they should be approximately doubled when the screw is dry.

Page 121: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 187

NSK NEEDLE BEARINGCAM FOLLOWERS (INCH DESIGN)

B 186

CR (Full Complement)

Full Complement, Sealed,CRS ( )With Thrust Washer

Outside Diameter 12.700 - 152.4 mm

0.5000

0.6250

0.75000.87501.0000

1.12501.25001.3750

1.50001.62501.7500

1.87502.00002.2500

2.50002.75003.0000

3.25003.50004.0000

5.00006.0000

8.749.52

10.3111.13

12.7012.7015.88

15.8819.0519.05

22.2222.2225.40

25.4031.7531.75

38.1038.1044.45

44.4550.8057.15

69.8582.55

4.8264.826

6.3506.350

9.5259.525

11.112

11.11212.70012.700

15.87515.87519.050

19.05022.22522.225

25.40025.40031.750

31.75034.92538.100

50.80063.500

――

0.25000.2500

0.37500.37500.4375

0.43750.50000.5000

0.62500.62500.7500

0.75000.87500.8750

1.00001.00001.2500

1.25001.37501.5000

2.00002.5000

10-3210-32

1/4-281/4-28

3/8-243/8-24

7/16-20

7/16-201/2-201/2-20

5/8-185/8-183/4-16

3/4-167/8-147/8-14

1-14(1)1-14(1)

1 1/4-12

1 1/4-121 3/8-121 1/2-12

2-12(2)2 1/2-12(2)

6.46.4

7.97.9

9.59.5

12.7

12.715.915.9

19.019.022.2

22.225.425.4

28.628.631.8

31.834.938.1

65.176.2

22.826.8

27.331.3

36.136.142.4

42.452.252.2

61.661.671.2

71.283.983.9

96.996.9

109.6

109.6122.3147.7

200.9237.5

12.7015.88

15.8819.05

22.2222.2225.40

25.4031.7531.75

38.1038.1044.45

44.4550.8050.80

57.1557.1563.50

63.5069.8588.90

128.59152.40

――

――

6.356.356.35

6.357.947.94

9.529.52

11.11

11.1112.7012.70

14.2914.2915.88

15.8817.4619.05

22.2225.40

――

――

2.42.43.2

3.23.23.2

4.04.04.0

4.04.84.8

4.84.84.8

4.84.84.8

4.84.8

3.2(3)3.2(3)

3.2(3)3.2(3)

4.84.84.8

4.84.84.8

4.84.84.8

4.84.84.8

4.84.86.4

6.46.46.4

6.46.4

CR-8CR-8-1

CR-10CR-10-1

CR-12CR-14CR-16

CR-18CR-20CR-22

CR-24CR-26CR-28

CR-30CR-32CR-36

CR-40CR-44CR-48

CR-52CR-56CR-64

CRB-80CRB-96

CRS-8CRS-8-1

CRS-10CRS-10-1

CRS-12CRS-14CRS-16

CRS-18CRS-20CRS-22

CRS-24CRS-26CRS-28

CRS-30CRS-32CRS-36

CRS-40CRS-44CRS-48

CRS-52CRS-56CRS-64

CRSB-80CRSB-96

12.700

15.875

19.05022.22525.400

28.57531.75034.925

38.10041.27544.450

47.62550.80057.150

63.50069.85076.200

82.55088.900

101.600

127.000152.400

3 8004 200

5 3505 800

8 8508 850

11 200

11 20018 50018 500

21 70021 70027 700

27 70041 50041 500

52 50052 50076 000

76 00099 000

126 000

198 000283 000

385430

545595

900900

1 140

1 1401 8901 890

2 2202 2202 830

2 8304 2504 250

5 3505 3507 750

7 75010 10012 800

20 20028 800

1 3401 340

2 6402 640

5 9005 9006 950

6 9509 6009 600

15 90015 90023 600

23 60032 50032 500

43 00043 00067 000

67 00081 50098 000

176 000277 000

136136

269269

600600710

710975975

1 6201 6202 400

2 4003 3503 350

4 4004 4006 850

6 8508 3509 950

18 00028 200

2 0502 260

2 9203 200

4 5505 1506 550

7 45010 40011 500

15 00016 30020 000

21 50029 10033 000

41 00045 50060 000

64 50081 500

107 000

154 000226 000

209230

298325

465525670

7601 0601 170

1 5301 6602 040

2 1902 9703 350

4 2004 6506 100

6 6008 300

10 900

15 70023 000

φD φd

C

φM1φM1

G1

G

M2

B1

B2

B3

CR CRS

X

E

CRB CRE

0–0.25

φd1±0.025

E

B4

Bearing Numbers

CR CRS

Boundary Dimensions(mm, inch)

D C d

Dimensions(mm)

ScrewUNF G1 B1 B2 B3 M2 M1

G

Basic DynamicLoad Ratings

(N) {kgf}

Cr

Limiting Loads

(N) {kgf}

Pmax

Limiting Track Loads

(N) {kgf}

Notes (1) USN screws are used in place of UNF screws.(2) UN screws are used in place of UNF screws.(3) Only the head of the stud has an oil hole.

Remarks Standard grease is packed in sealed cam followers, but not in cam followers without seals.

Abutment and fillet dimensions, and tightening torque are shown on the next page.

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B 189

NSK NEEDLE BEARINGCAM FOLLOWERS (INCH DESIGN) (continued)

B 188

CR-8CR-8-1

CR-10CR-10-1

CR-12CR-14CR-16

CR-18CR-20CR-22

CR-24CR-26CR-28

CR-30CR-32CR-36

CR-40CR-44CR-48

CR-52CR-56CR-64

CRB-80CRB-96

CRS-8CRS-8-1

CRS-10CRS-10-1

CRS-12CRS-14CRS-16

CRS-18CRS-20CRS-22

CRS-24CRS-26CRS-28

CRS-30CRS-32CRS-36

CRS-40CRS-44CRS-48

CRS-52CRS-56CRS-64

CRSB-80CRSB-96

3.183.18

3.183.18

4.764.766.35

6.356.356.35

7.947.947.94

7.9411.1111.11

12.7012.7015.88

15.8815.8819.05

22.2225.40

9090

226226

630630

1 700

1 7002 3102 310

4 4004 4008 500

8 50010 20010 200

15 30015 30023 100

23 10028 20034 000

34 00034 000

9.29.2

2323

6464

173

173236236

450450865

86510401040

156015602360

236028803450

34503450

0.0100.010

0.0190.020

0.0340.0440.073

0.0890.1350.16

0.240.2750.385

0.430.620.755

1.151.351.9

2.22.94.3

8.715

―9.52

―11.10

12.7012.7012.70

12.7015.8815.88

19.0519.0522.22

22.2225.4025.40

28.5828.5831.75

31.7534.9250.80

――

―6.350

―9.525

12.70012.70015.875

15.87517.45017.450

22.22522.22525.400

25.40030.15030.150

34.92534.92544.450

44.45046.02550.800

――

―0.25

―0.38

0.380.380.76

0.760.760.76

0.760.760.76

0.760.760.76

0.760.761.52

1.521.521.52

――

7.57.5

9.19.1

12.712.715.1

15.119.019.0

22.622.626.6

26.630.630.6

34.934.944.4

44.448.857.9

82.699.2

0.250.25

0.40.4

0.40.40.8

0.80.80.8

0.80.81

11.31.3

2.32.32.3

2.32.32.3

44

X

B4

CRB CRE

0–0.25

φd1±0.025

E

φF

ra

Mass (kg)

approx

Boundary Dimensions

CR CRS

Eccentric Bush Dimensions(mm) ( 5 )

B4 d1 E

ShoulderDimensions

(mm)F

min

*1

(mm)

X

*2

(mm)

ra

min

Tightening Torque ( 6 )

(N・cm) {kgf・cm}

max max

*1 Dimensions of Hexagonal Socked (width across flats) (4) *2 Fillet Radius of Housing

Notes (4) Applicable to CRB only.(5) Applicable to CRE only.

Notes (6) These values are for when the screw is oiled;they should be approximately doubled when the screw is dry.

Page 123: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

B 190

NSK NEEDLE BEARING

B 191

Type

Metric

Inch

Details

FYCR

FYCRS

FYCJ

FYCJS

YCR

YCRS

Full complement

With seal, full complement, with thrust washer

With cage

With seal, with cage, with thrust washer

Full complement

With seal, full complement, with thrust washer

Table 1 Bearing Types

ROLLER FOLLOWERS (YOKE TYPE TRACK ROLLERS)Pages

Metric Design Bore Diameter 5-50 mm ..................................................................... B194-B195

Inch Design Bore Diameter 6.350-57.150 mm ....................................................... B196-B197

The roller follower with a thick-wall outer ring and crowned roller has alarge load capacity which enables it to carry shock loads. Handling is easysince it it non-separating and applications such as track rollers, cams androcker arms are wide.

Types

NSK roller rollowers are available in the types shown in Table 1. All ofthe bearings in Table 1 have a cylindrical outside. Bearings of thefollowing specifications are available and can be manufactured uponrequest:

1. Outer ring with a spherical exteriorIn this case, your order should be placed in the following manner:

(1) For metric bearings, R should be added to the end of bearingnumber.Examples: FYCR-5R, FYCJ-5R

FYCRS-5R, FYCJS-5R

(2) For inch bearings, C should be added to the end of the bearingtype code.Examples: YCRC-12

YCRSC-12

Spherical radius of outer ring is shown in page B193.2. Exposed surface treated with a black oxide layerIn addition to the above, products of special shape and specifications are

available and can be manufactured upon order. Please contact NSK forfurther details.

Page 124: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

ROLLER FOLLOWERS

B 192

NSK NEEDLE BEARING

B 193

RNominal BoreDiameter, d

(mm)

Single Plane MeanBore Diameter

Deviation, ddmp

Single Plane Mean OutsideDiameter Deviation, dDmp Outer Ring Width

Deviation, dCs

Overall Inner RingWidth Deviation,

dBsCylindricalOutside Surface

SphericalOutside Surface (1)

over incl high low high low high low high low high low

19.05

19.05

57.15

+5

+2

0

0

-25

-25

0

0

0

0

-130

-130

+130

+130

-256

-250

-50

-50

-10

-13

Table 2 Tolerances for Inch BearingsUnits: pm

Note (1) Metric bearings have the same dimension tolerance.

Bearing Number

All Bearing Numbers

R

500

Table 4 Spherical Radius, R, of Metric Bearing OutsideUnits: mm

Bearing Number (1)

YCRC-12YCRC-14YCRC-16YCRC-18YCRC-20

YCRC-22YCRC-24YCRC-26YCRC-28YCRC-30

R

250250300300360

360500500500500

Bearing Number (1)

YCRC-32YCRC-36YCRC-40YCRC-44YCRC-48

YCRC-52YCRC-56YCRC-64YCRC-80YCRC-96

R

600600760760760

760760760

12001400

Table 5 Spherical Radius, R, of Inch Bearing OutsideUnits: mm

Note (1) While YCRC bearing numbers are listed here, the values ofR also apply to YCRSC bearings.

Accuracy

NSK metric roller followers are manufactured in compliance with ISOClass 0 (refer to pages A26 and A27), and inch followers in compliancewith the tolerances shown in Table 2. Running accuracy complies withISO Class 0 in both cases.

The deviations for the above apply to the bearings before surfacetreatment.

Applications

Fitting

Roller followers are generally used with a transition or loose fit for the shaftbecause their outer ring rotates. With heavy loads, however, it isrecommended to harden the shaft and use it with a tight fit. In order toprevent the bearing from moving in the axial direction, both ends of the innerring should be securely fixed to the plane surface, square to the center axis.In order to sufficiently support the side plate, the dimension of the shouldershould be larger than the value of F in the bearing table.

Recommended fittings are shown in Table 3.

Permissible Track Load

Permissible track load values are the same as those for cam followers.Please refer to the explanation on permissible track load on page B181.

Pre-Packed Grease

Roller followers with seals are pre-lubricated with lithium soap-basedgrease and the working temperature range is -10 to +110°C.

Spherical Radius of Outer Ring Outside

Spherical radii for metric bearings are shown in Table 4 and for inchbearings in Table 5.

Load

Light Load/Normal Load

Heavy Load

Fitting Tolerance of Shaft

g6 or h6

k6

Table 3 Recommended Shaft Fittings

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NSK NEEDLE BEARING

B 195

ROLLER FOLLOWERS

B 194

FYCR (Full Complement)

Full Complement, Sealed,FYCRS ( )With Thrust Washer

FYCJ (With Cage)

Sealed, With Cage andFYCJS ( )Thrust Washer

Bore Diameter 5 - 50 mm

FYCR-5FYCJ-5

FYCR-6FYCJ-6

FYCR-8FYCJ-8

FYCR-10FYCJ-10

FYCR-12FYCJ-12

FYCR-15FYCJ-15

FYCR-17FYCJ-17

FYCR-20FYCJ-20

FYCR-25FYCJ-25

FYCR-30FYCJ-30

FYCR-35FYCJ-35

FYCR-40FYCJ-40

FYCR-45FYCJ-45

FYCR-50FYCJ-50

FYCRS-5FYCJS-5

FYCRS-6FYCJS-6

FYCRS-8FYCJS-8

FYCRS-10FYCJS-10

FYCRS-12FYCJS-12

FYCRS-15FYCJS-15

FYCRS-17FYCJS-17

FYCRS-20FYCJS-20

FYCRS-25FYCJS-25

FYCRS-30FYCJS-30

FYCRS-35FYCJS-35

FYCRS-40FYCJS-40

FYCRS-45FYCJS-45

FYCRS-50FYCJS-50

5 8002 830

6 5503 450

10 1005 700

11 7006 950

12 6007 650

18 70012 200

21 10013 700

28 90018 200

32 50022 200

47 50031 500

49 50033 000

54 50038 500

57 50040 000

60 50041 500

8 0002 620

9 9003 600

15 0006 000

18 5008 200

21 0009 650

29 30014 100

35 00016 700

50 00022 600

60 00031 000

96 00047 000

106 00052 500

126 00067 500

139 00073 000

152 00078 000

590288

665355

1 030580

1 190705

1 280780

1 9101 250

2 1601 390

2 9401 850

3 3002 270

4 8003 200

5 0503 400

5 6003 950

5 8504 100

6 1504 200

815267

1 010365

1 530610

1 890835

2 140985

2 9901 440

3 6001 700

5 1002 310

6 1003 150

9 8004 800

10 8005 350

12 8006 900

14 1007 450

15 5007 950

5

6

8

10

12

15

17

20

25

30

35

40

45

50

1616

1919

2424

3030

3232

3535

4040

4747

5252

6262

7272

8080

8585

9090

1111

1111

1414

1414

1414

1818

2020

2424

2424

2828

2828

3030

3030

3030

1212

1212

1515

1515

1515

1919

2121

2525

2525

2929

2929

3232

3232

3232

0.30.3

0.30.3

0.30.3

0.60.6

0.60.6

0.60.6

11

11

11

11

11

11

11

11

φD φDφd φd

r r

C CB B

FYCR FYCRS

φF

3 3503 350

4 1504 150

6 5006 500

7 8007 800

8 0508 050

11 80011 800

14 30014 300

20 80020 800

22 90022 900

33 00033 000

36 50036 500

43 50043 500

46 50046 500

49 50049 500

340340

425425

665665

795795

820820

1 2001 200

1 4601 460

2 1202 120

2 3402 340

3 3503 350

3 7003 700

4 4504 450

4 7504 750

5 0505 050

0.0160.014

0.0220.020

0.0440.042

0.0690.067

0.0760.074

0.1050.097

0.1450.14

0.2550.245

0.2850.275

0.480.47

0.640.635

0.880.865

0.930.91

0.9950.965

1010

1212

1414

1717

1919

2323

2525

2929

3434

5151

5858

6666

7272

7676

Bearing Numbers

FYCR FYCRSFYCJ FYCJS

Mass (kg)

approx

Boundary Dimensions(mm)

d D C B rmin

Basic Load Ratings(N) {kgf}

Cr Cor Cr Cor

ShoulderDimensions

(mm)F

min

Limiting TrackLoads

(N) {kgf}

0-0.38

Remarks Standard grease is packed in sealed cam followers, but not in cam followers without seals.

Page 126: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

NSK NEEDLE BEARING

B 197

ROLLER FOLLOWERS (INCH DESIGN)

B 196

YCR (Full Complement)

Full Complement, Sealed,YCRS ( )With Thrust Washer

Bore Diameter 6.350 - 57.150 mm

0.2500

0.3125

0.3750

0.4375

0.5000

0.6250

0.7500

1.0000

1.1250

1.2500

1.7500

2.2500

19.05022.225

25.40028.575

31.75034.925

38.10041.275

44.45047.625

50.80057.150

63.50069.850

76.20082.550

88.900

101.600

127.000

152.400

0.75000.8750

1.00001.1250

1.25001.3750

1.50001.6250

1.75001.8750

2.00002.2500

2.50002.7500

3.00003.2500

3.5000

4.0000

5.0000

6.0000

12.7012.70

15.8815.88

19.0519.05

22.2222.22

25.4025.40

31.7531.75

38.1038.10

44.4544.45

50.80

57.15

69.85

82.55

14.2914.29

17.4617.46

20.6420.64

23.8123.81

26.9926.99

33.3433.34

39.6939.69

46.0446.04

52.39

58.74

73.02

85.72

0.50000.5000

0.62500.6250

0.75000.7500

0.87500.8750

1.00001.0000

1.25001.2500

1.50001.5000

1.75001.7500

2.0000

2.2500

2.7500

3.2500

8 8508 850

11 20011 200

18 50018 500

21 70021 700

27 70027 700

41 50041 500

52 50052 500

76 00076 000

99 000

126 000

198 000

283 000

14 40014 400

20 80020 800

32 00032 000

42 00042 000

60 00060 000

85 50085 500

118 000118 000

172 000172 000

228 000

285 000

435 000

645 000

6.350

7.938

9.525

11.112

12.700

15.875

19.050

25.400

28.575

31.750

44.450

57.150

900900

1 1401 140

1 8901 890

2 2202 220

2 8302 830

4 2504 250

5 3505 350

7 7507 750

10 100

12 800

20 200

28 800

1 4701 470

2 1202 120

3 2503 250

4 2504 250

6 1506 150

8 7508 750

12 00012 000

17 60017 600

23 300

29 100

44 500

65 500

YCR-12YCR-14

YCR-16YCR-18

YCR-20YCR-22

YCR-24YCR-26

YCR-28YCR-30

YCR-32YCR-36

YCR-40YCR-44

YCR-48YCR-52

YCR-56

YCR-64

YCR-80

YCR-96

YCRS-12YCRS-14

YCRS-16YCRS-18

YCRS-20YCRS-22

YCRS-24YCRS-26

YCRS-28YCRS-30

YCRS-32YCRS-36

YCRS-40YCRS-44

YCRS-48YCRS-52

YCRS-56

YCRS-64

YCRS-80

YCRS-96

4 5505 150

6 5507 450

10 40011 500

15 00016 300

20 00021 500

29 10033 000

41 00045 500

60 00064 500

81 500

107 000

154 000

226 000

465525

670760

1 0601 170

1 5301 660

2 0402 190

2 9703 350

4 2004 650

6 1006 600

8 300

10 900

15 700

23 000

0.0270.036

0.0680.077

0.110.135

0.1850.225

0.290.365

0.4750.60

0.8151.0

1.41.65

2.25

3.2

6.0

9.95

12.712.7

15.115.1

19.019.0

22.622.6

26.626.6

30.630.6

34.934.9

44.444.4

48.8

57.9

82.6

99.2

0.40.4

0.80.8

0.80.8

0.80.8

1.11.1

1.31.3

2.32.3

2.32.3

2.3

2.3

4.1

4.1

φD φDφd φd

ra ra

C CB B

YCR YCRS

φF

Bearing Numbers

YCR YCRS

Mass (kg)

approx

Boundary Dimensions(mm, inch)

d D C B

Basic Load(N)

Cr Cor

Ratings{kgf}

Cr Cor

Limiting Track Loads(N) {kgf}

FilletRadius(mm)

ra

max

ShoulderDimensions

(mm)F

min

Remarks Standard grease is packed in sealed cam followers, but not in cam followers without seals.

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NSK NEEDLE BEARING

B 199B 198

NEEDLE ROLLERSPages

Metric Design Roller Diameter 1-5 mm ............................................................................. B200

Inch Design Roller Diameter 0.792-6.350 mm ............................................................... B207

NSK needle rollers are made of carefully selected degassed bearing steeland given a precise grinding finish after heat treatment. Provided with thefollowing characteristics, they have a wide range of applications, includinggears, small engines and universal joints:(1) Most economical when applied as a full complement bearing(2) Very high load capacity(3) Smaller mounting space(4) Rollers with special crowning

Types

Needle rollers come in the types shown in Table 1.

Accuracy

NSK metric needle rollers are manufactured in compliance with ISO.Dimensions are shown in Table 2 and dimension accuracy in Table 3, 4and 5.

Inch needle rollers are manufactured with a standard diameter toleranceof 0 to -5pm. Needle rollers with a diameter tolerance of 0 to -3pm and0 to -2pm are also available and manufactured upon request. Pleaseconsult NSK for further details.

End Face Shape Type Code Details

Rounded

Flat

Conical

Trunnion

Crank Pin

Stepped

A

F

T

C

P

M

General

General and large effective length

Suitable for roller to be held in shaft or housing

Suitable for roller to be held in shaft or housing

Suitable for large fillet radius, R, at the shoulder of mounting area

Suitable for roller to be held in shaft or housing

Table 1 Needle Roller End Face Shapes and Codes

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NSK NEEDLE BEARING

B 201

NEEDLE ROLLERS

B 200

Nominal Size Dw

1 × 5.81 × 6.81 × 7.81 × 9.81.5× 5.81.5× 6.81.5× 7.81.5× 9.81.5× 11.81.5× 13.82 × 6.82 × 7.82 × 9.82 × 11.82 × 13.82 × 15.82 × 17.82 × 19.82.5× 7.82.5× 9.82.5× 11.82.5× 13.82.5× 15.82.5× 17.82.5× 19.82.5× 21.82.5× 23.83 × 9.83 × 11.83 × 13.83 × 15.83 × 17.83 × 19.83 × 21.83 × 23.83 × 25.83 × 27.83 × 29.83.5× 11.83.5× 13.83.5× 15.83.5× 17.8

11111.51.51.51.51.51.5222222222.52.52.52.52.52.52.52.52.5333333333333.53.53.53.5

5.86.87.89.85.86.87.89.8

11.813.8

6.87.89.8

11.813.815.817.819.8

7.89.8

11.813.815.817.819.821.823.8

9.811.813.815.817.819.821.823.825.827.829.811.813.815.817.8

0.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.1

0.0350.0420.0480.0600.0800.0930.1050.1350.1600.1900.1650.1900.2400.2900.3350.3850.4350.4850.3000.3750.4500.5250.6050.6800.7550.8350.9100.5400.6500.7600.8700.9801.101.201.301.401.551.650.8851.051.201.35

Lwr(1)(min)

Mass (kg)(Reference)

per1,000 pieces

Nominal Size Dw

3.5× 19.83.5× 21.83.5× 23.83.5× 25.83.5× 27.83.5× 29.83.5× 31.83.5× 34.84 × 13.84 × 15.84 × 17.84 × 19.84 × 21.84 × 23.84 × 25.84 × 27.84 × 29.84 × 31.84 × 34.84 × 37.84 × 39.84.5× 17.84.5× 19.84.5× 21.84.5× 23.84.5× 25.84.5× 29.84.5× 31.84.5× 34.84.5× 37.84.5× 39.85 × 19.85 × 21.85 × 23.85 × 25.85 × 27.85 × 29.85 × 31.85 × 34.85 × 37.85 × 39.85 × 49.8

3.53.53.53.53.53.53.53.544444444444444.54.54.54.54.54.54.54.54.54.555555555555

19.821.823.825.827.829.831.834.813.815.817.819.821.823.825.827.829.831.834.837.839.817.819.821.823.825.829.831.834.837.839.819.821.823.825.827.829.831.834.837.839.849.8

0.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.10.1

1.501.651.801.952.102.252.402.601.351.551.751.952.152.352.552.702.903.103.403.703.902.202.452.702.953.203.703.954.304.704.903.003.353.653.954.254.554.855.305.756.107.60

Lwr(1)(min)

Mass (kg)(Reference)

per1,000 pieces

φDw φDw

Lw

Lw

r

r

Table 2 Nominal Size and Dimension of Needle RollersUnits: mm Units: mm

Note (1) Suitable for rollers with a flat end face.Remarks 1. The figure shows the end faces with round and flat surfaces.

2. The minimum dimension and the maximum dimension of the fillet radius R of the end faces of the round surface

are ―― and ――, respectively.Dw

2Lw

2

DW

r (min) r (max)over incl

1

3

1

3

5

0.1

0.1

0.1

0.4

0.6

0.9

Table 3 Tolerances of Chamfer Dimension of Needle RollersUnits: mm

Remarks To be applied to the roller with a flat end face.

Class

2

3

5

Mean DiameterTolerance

0

0

0

-5

-5

-5

DiameterVariation in

Single Plane, (1)

dDWP

maxhigh low

1

1.5

2

1

1.5

2.5

2

3

5

h13

h13

h13

Deformation, (1)

dR

max

Variation WithinGauge Lot

Diameter, (1)

VDWL

max

LengthDeviation, (2)

dLWS

Table 4 Tolerances of Dimension and Shape of Needle RollersUnits: pm

Notes (1) To be applied at the center of a roller,s length.

(2) According to Lw division. h13 is shown in Table 5 .Remarks For the overall length of the roller, any actual measured diameter shall not exceed the

actual maximum diameter at the center of the length of the roller by more than thefollowing values :

Class 2: 0.5 pmClass 3: 0.8 pmClass 5: 1 pm

Basic Design

over incl

h13

high low

3

6

10

18

30

6

10

18

30

50

0

0

0

0

0

-0.18

-0.22

-0.27

-0.33

-0.39

Table 5 Dimension Tolerance of LengthUnits: mm

r

r

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NSK NEEDLE BEARING

B 203

NEEDLE ROLLERS

B 202

Lw

Dw

Dpw

Dd

d c

d r

Lwe

Code Details Calculation Equation

Z

K

d c

d r

Dpw

D

d

Dw

Lwe

Lw

Number of rollers

Kordal coefficient

Circumference clearance (min)

Radial internal clearance (min)

Roller pitch diameter

Housing bore diameter (min)

Shaft diameter (max)

Roller diameter (max)

Roller effective length

Roller length (max)

(refer to Table 9)

According to Table 7 and Table 8

According to Table 7 and Table 8

In case of round surface roller, Lwe≒Lw-( ~  )

Dpw=KDw+d c/π=D-Dw=d+d r+Dw

D=Dpw+Dw=(K+1)Dw+d c /π=d+d r+2Dw

d=Dpw-Dw-d r=(K-1)Dw+d c /π-d r=D-2Dw-d r

Dw=Dpw-d-d r=     =       =D-Dpw=Dpw-d c/π――――――

K

d+d r-d c/π――――――――(K-1)D-d c/π――――――(K+1)

Dw――2Dw――4

Table 6 Design Standards

Nominal ShaftDiameter

over

CircumferenceClearance,

dc

Radial InternalClearance,

drincl

3

6

10

18

30

50

80

3

6

10

18

30

50

80

120

0.08

0.08

0.08

0.08

0.08

0.16

0.16

0.16

0.006

0.008

0.009

0.011

0.013

0.016

0.019

0.022

Table 7 Minimum Clearance under

Normal Rotational ConditionUnits: mm

Table 8 Minimum Clearance under

Application ConditionsUnits: mm

Application PartCircumferenceClearance, dc

Radial InternalClearance, dr

Universal Joint Value in Table 7

Value in Table 7

Value in ( )× 2Table 7

Value in ( )× 2Table 7

Value in ( )× 3Table 7

Value in ( )× 1/2Table 7

0.21 0.015

Pilot

Counter Shaft

Planetary Gear

Z K Z K Z K

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

2.00000

2.30477

2.61313

2.92380

3.23607

3.54947

3.86370

4.17858

4.49395

4.80973

5.12583

5.44219

5.75877

6.07553

6.39245

6.70951

7.02667

7.34394

7.66130

7.97873

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

8.29623

8.61379

8.93141

9.24907

9.56677

9.88452

10.20230

10.52011

10.83795

11.15582

11.47371

11.79163

12.10957

12.42752

12.74550

13.06349

13.38149

13.69951

14.01754

14.33559

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

14.65365

14.97171

15.28979

15.60788

15.92597

16.24408

16.56219

16.88031

17.19844

17.51657

17.83471

18.15286

18.47101

18.78916

19.10732

Table 9 Value of K

Applications

When a needle roller is applied as a full complement bearing, pastperformance generally demonstrates that the application of 35 rollers or lessat a ratio of roller length, Lw, to roller diameter, Dw, of 4 ≦ Lw/Dw≦ 8produces good results. However, with combinations other than the above,many application results have been obtained. In general, good performancecan be produced by applying fewer rollers with a larger roller diameter fornormal rotation, and more rollers with smaller roller diameter for oscillation.

Needle Roller Design Guidelines

A standard needle roller is used as a full complement bearing. It ispossible to easily obtain the approximate shaft diameter and housing borediameter for each value of roller diameter and number of rollers from thegraphs in Fig. 1 to Fig. 4 (B204-B206). For detailed design, shaftdiameter and housing bore diameter can be obtained in accordance withthe design standard shown in Table 6. For these calculations, therecommended radial internal clearance, dr, and circumference clearance,dc, for each application condition are shown in Table 7 and Table 8 andthe Kordal coefficient, K = 1/sin (180°/Z), in Table 9. For each shaftand housing bore tolerance class, H6 and h5 are recommended.

180°K=1/sin――

Z

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NSK NEEDLE BEARING

B 205

NEEDLE ROLLERS

B 204

Num

ber

of R

olle

rs

Shaft Diameter

Fig. 1 Roller Number and Shaft Diameter for Standard Metric Roller Diameter

Fig. 2 Number of Rollers and Housing Bore Diameter for Standard Metric Roller Diameter

Roller Diameter

Num

ber

of R

olle

rs

Housing Bore Diameter

Roller Diameter

Z K Z K

8

9

10

11

12

13

14

15

16

3.67633

3.97094

4.27277

4.57895

4.88797

5.19892

5.51128

5.82467

6.13885

17

18

19

20

21

22

23

24

25

6.45365

6.76893

7.08461

7.40061

7.71688

8.03337

8.35005

8.66689

8.98387

Table 10 Keystone Constant

Assembly of Rollers by Keystone

When it is necessary to hold the rollers with the keystone method duringthe process of installing them in the housing, whether or not the rollers aresecurely held can be checked by the following equation:

Dw (min) × Y> D (max)

where,Dw (min) : Minimum roller diameter dimension D (max) : Maximum housing bore dimensionY : Keystone constant (refer to Table 10)

Specifications of Shaft and Housing

As needle rollers are applied directly to theshaft and housing bore, it is necessary to havethe shaft and housing bore conform to uniformspecifications. For these specifications, pleaserefer to the section on cage and rollerassemblies on page B7.

Product Number of Rollers

Note Product number is shown with nominal size, roller end type code,accuracy class, and special code, as necessary.

(Example) 2 × 9.8 A G3 R

Nominal Size Roller EndType Code

(refer to Table 1)

Special CodeR: Crowning

Accuracy ClassG5: Class 5G3: Class 3G2: Class 2

mm

mm

mm

mm

Page 131: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

NSK NEEDLE BEARING

B 207

NEEDLE ROLLERS

B 206

Fig. 3 Number of Rollers and Shaft Diameter for Standard Inch Roller Diameter

Fig. 4 Number of Rollers and Housing Bore Diameter for Standard Inch Roller Diameter

Num

ber

of R

olle

rs

Shaft Diameter

Roller DiameterN

umbe

r of

Rol

lers

Housing Bore Diameter

Roller Diameter

Specification (mm)ProductNumber

Mass per1,000 pieces,

kg (approx)Diameter,

Dw

Length,Lw

Specification (mm)ProductNumber

Mass per1,000 pieces,

kg (approx)Diameter,

Dw

Length,Lw

0.792 3.054.064.83

5.596.357.117.87

1.191 4.064.835.59

6.357.117.87

9.6511.18

1.588 6.357.117.87

9.6511.1812.70

14.2215.7519.05

1.984 7.879.65

11.18

12.7014.2215.75

19.0522.35

2.283 9.6511.1812.70

14.2215.7519.05

22.3525.40

2.779 11.1812.7014.22

15.7519.0522.35

25.4028.45

Q-8266Q-8267Q-8100

Q-8268Q-8101Q-8269Q-8102

Q-8271Q-8272Q-8273

Q-8103Q-8274Q-8104

Q-8105Q-8106

Q-8276Q-8277S-1414-Q

Q-8107Q-8108Q-1821

Q-8109H-368-QQ-8284

Q-8286Q-8287Q-8110

Q-8111Q-8112Q-8049

Q-8114Q-8289

Q-8290Q-8291Q-8292

Q-8115Q-8116H-230-Q

Q-8037Q-8294

Q-8296Q-8297Q-8298

Q-8118Q-8119Q-8120

Q-8121Q-8303

0.0120.0160.019

0.0210.0240.0270.030

0.0350.0420.048

0.0550.0620.068

0.0840.097

0.0980.1100.120

0.1500.1700.195

0.2200.2450.295

0.1900.2300.270

0.3050.3400.380

0.4600.540

0.3350.3900.440

0.4950.5450.660

0.7750.880

0.5300.6000.670

0.7450.9001.05

1.201.35

3.175 12.7014.2215.75

19.0522.3525.40

28.4531.7535.05

3.967 15.7519.0522.35

25.4028.4531.75

35.0538.10

4.762 19.0522.3525.4028.45

31.7535.0538.1044.45

5.558 22.3525.4028.45

31.7535.0538.10

44.4550.80

6.350 25.4028.4531.75

35.0538.1044.45

50.8057.1563.50

M-484-QQ-8304Q-8371

C-407-QQ-8122B-1316-Q

Q-8123C-437-QQ-8310

Q-8254Q-8314Q-8315

Q-8124Q-8316E-151-Q

Q-8317R-315-Q

Q-8320Q-8321C-436-QQ-8322

G-529-QQ-8323P-377-QC-951-Q

Q-8328Q-8125Q-8329

Q-8126Q-8330Q-8127

Q-8332Q-8334

C-435-QQ-8336O-197-Q

Q-8337F-236-QC-434-Q

W-430-QG-613-QQ-8340

0.7800.8750.970

1.151.401.55

1.751.952.15

1.501.852.15

2.452.753.05

3.353.65

2.663.113.553.99

4.444.885.336.11

4.204.805.35

6.006.607.20

8.409.60

6.257.007.80

8.659.40

11.0

12.514.015.5

Table 11 Nominal Size and Dimension of Inch Needle Rollers

Remarks 1. Rollers in the table are manufactured with thefollowing tolerances:Mean value of roller diameters: 0 to -0.005 mmRoller length: 0 to -0.5 mm

2. All roller end faces in the table have arounded end.

Please consult NSK for selection.

mm

mm

mm

mm

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NSK NEEDLE BEARING

B 209B 208

Code

Metric

FSF Outer ring, single-cut

Outer ring, single-cut with seal

Outer ring, double-cut splitAfter the inner ring is mounted, it is fitted with a snap ring.

Outer ring, single-cut

Outer ring, single-cut with seal

Outer ring, double-cut splitAfter the inner ring is mounted, it is fitted with a snap ring.

FSFTT

FSBB

SF

SF ... TT

SBB

Inch

Details

Table 1 Bearing Types

SPHERICAL PLAIN BEARINGSPages

Metric Design Bore Diameter 12-160 mm .............................................................. B214-B217

Inch Design Bore Diameter 12.700-152.400 mm ................................................ B218-B219

Spherical plain bearings are self-aligning. They are designed to carryheavy radial loads and combinations of radial and axial loads and to adjustthe inclination of the inner ring and outer ring.

They are widely used in industrial and construction machinery andequipment that is characterized by low-speed oscillation and operation.

Design and Types

The simple structure consists of an inner ring with a spherical outsidesurface of the same diameter mounted to a single or double-cut split outerring with a ground, spherical bore surface. Both inner and outer rings aremade of high-carbon chromium bearing steel, fully hardened to HRC55 ormore, and given a precise grinding finish. All the surfaces of the inner andouter rings are given phosphate surface treatment and covered with a coatingof molybdenum disulfide.

The bearing codes and the details are shown in Table 1. Bearing numbersare formulated as follows. (Please note that inch bearings have their ownbearing number formula that differs from metric bearings.)

Although the bearing table shows FSF and SF bearings with single-cutouter ring, FSBB and SBB types with a double-cut split outer ring are alsoavailable.

Special spherical plain bearings, e.g., thrust spherical plain bearings,extended inner ring spherical plain bearings and spherical plain bearingsmade of special materials are also available. Please contact NSK for furtherdetails.

(Example) 20 FSF 32

Outside Diameter (mm)CodeBore Diameter (mm)

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NSK NEEDLE BEARING

B 211

SPHERICAL PLAIN BEARINGS

B 210

Table 2.1 Dimensional Tolerances of Inner Ring Bore Diameter

and Width (Inch)Units: pm

Nominal Bore Diameter, d (mm)Single Plane Mean

Bore DiameterDeviation, ddmp (1)

Deviation of asingle inner ring with

dBs

over incl high low high low

11.112(7/16)

50.800(2)

76.200(3)

120.650(4 3/4)

50.800(2)

76.200(3)

120.650(4 3/4)

152.400(6)

0

0

0

0

-130

-130

-130

-130

0

0

0

0

-13

-20

-20

-25

Note (1) Value after surface treatment

Table 2.2 Dimensional Tolerances of Outer Ring Outside Diameter

and Width (Inch)Units: pm

Nominal Outside Diameter, D (mm)Single Plane MeanOutside DiameterDeviation, dDmp (1)

Deviation of a singleouter ring withdCs

over incl high low high low

20.638(13/16)

50.800(2)

80.962(3 3/16)

120.650(4 3/4)

177.800(7)

50.800(2)

80.962(3 3/16)

120.650(4 3/4)

177.800(7)

222.250(8 3/4)

0

0

0

0

0

-130

-130

-130

-130

-130

0

0

0

0

0

-13

-15

-20

-25

-30

Note (1) Value before surface treatment and outer ring splitting

Accuracy

The dimensional tolerances of NSK's metric spherical plain bearings arein accordance with the accuracy of ISO of radial bearings (refer to pagesA26 and A27). However, dimensional tolerance values are before surfacetreatment and outer ring splitting. For FSBB bearings, the dimensionaltolerance of the inner ring bore diameter is the value after surfacetreatment.

The dimensional tolerances of Inch spherical plain bearings are shown inTable 2.1 and Table 2.2.

Applications

Dynamic Load Capacity (Cd)

The dynamic load capacity shown in the Bearing Table indicates themaximum load that the bearing can carry under the following conditions:

1. Intermittent motion and load2. Appropriate lubrication and periodic oiling3. Appropriate fittings4. Proper design of shaft and housingIn the case of continuous operation with the same load, however, the

bearing load is required to be 75% of the dynamic load capacity or less.For the permissible sliding speed of bearings, which depends on bearing

load, lubrication, heat generation, sliding contact surface condition and otherfactors, the PV value is shown here as a guide:

PV≦ 24.5 (N/mm2・m/min)PV≦ 2.5 {kgf/mm2・m/min}where,

P (N/mm2): Value obtained from the bearing load divided by theprojected area of sliding surface

V (m/mim): Sliding speedSpecial care is needed in lubrication, fitting and other areas in connection

with such motion as high-frequency micro oscillation. Please consult NSK forfurther details.

Maximum Permissible load (Cs)

The maximum permissible load shown in the bearing table is the maximumstatic load that can be imposed on the bearing. If the load carried by thebearing is close to the maximum permissible load, the stress produced on theshaft or housing may reach its limit. Care should be taken accordingly.

Radial Internal Clearance

Depending on bearing dimensions, bearings are manufactured with radialinternal clearance of between 0.09 mm to 0.27 mm before mounting.

Permissible Misalignment

Generally, the permissible misalignment of a spherical sliding bearing islimited by the bearing's surrounding structure. Shown in the bearing table isthe angle that allows inclination without any reduction in the permissible loadon a single spherical plain bearings.

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NSK NEEDLE BEARING

B 213

SPHERICAL PLAIN BEARINGS

B 212

φd φD

C E

Y

X

E/D

1.2

1.4

1.6

K

1.8

2.0

2.2

E/D

1.8

2.0

2.5

K

2.4

2.7

3.2

E/D

3.0

4.0

5.0

K

3.7

4.7

5.5

Table 4 Values of Coefficient K

Fig. 1

Fitting

Recommended fittings for application of spherical plain bearings areshown in Table 3.

Design of Shaft and Housing

Shaft

In general, because oscillating and rotating motion is generated betweenthe shaft and inner ring bore surface as the load becomes larger, it isimportant to establish a standard shaft hardness and surface roughness. It isrequired, therefore, for the shaft to have a hardness of HRC58 or more and arouthness of 0.8pmRa. In addition, in order minimize shaft deflection, thesupport part of the shaft should be placed close to the inner ring.

With axial loads, the shoulder of the shaft in contact with the side face ofthe inner ring, which serves to support the load, requires sufficient strengthand hardness. When rotating or oscillating motion is involved, the surface incontact with the side face of the inner ring should be finished to a roughnessof 0.8pmRa.

Housing

The housing should be rigid enough to avoid deformation caused byexternal load.

The critical points of design when using the housing shape shown Fig. 1

are as follows. In case the external load works in the X direction, thecompressive strength of the housing materials should be greater than thevalue of the load divided by the bearing projected area (C× D).

When the external load works in the Y direction, the tensile strength of thehousing should be greater than the value of the imposed load multiplied by

. The values of coefficient K are shown in Table. 4.K―――――C(E-D)

Load Condition

Light Load

Heavy Load

Fitting Tolerance

Shaft Housing Bore

m6

Metric bearing f6

Inch bearing g6

H7

N7

Table 3 Recommended Fittings

Lubrication

The inner and outer rings are provided with an oil groove and oil hole.Lubricant should be supplied to the fitting and spherical surface of the shaftthrough either the shaft or housing. The lubrication interval varies dependingon conditions such as magnitude of load, oscillating speed, oscillating angle,ambient condition and sealing condition.

As the load capacity of the bearing is determined by the oil film strength ofthe lubricant to be used, selection of lubricant is important. In general, alubricant containing extreme pressure additives is recommended.

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NSK NEEDLE BEARING

B 215

SPHERICAL PLAIN BEARINGS

B 214

FSF

Bore Diameter 12 - 65 mm

2222

2626

30

3235

37

4242

4750

5555

6262

6872

7580

90

90100

105

79

911

10

1412

16

1618

1823

2026

2228

2531

2836

40

3645

47

1011

1213

14

1616

19

2021

2227

2530

2833

3236

3542

47

4453

55

0.30.3

0.30.3

0.3

0.30.3

0.3

0.30.3

0.30.6

0.60.6

0.60.6

0.60.6

0.60.6

0.6

10.6

0.6

0.30.3

0.30.3

0.3

0.30.3

0.3

0.30.3

0.30.6

0.30.6

0.30.6

0.30.6

0.30.6

0.6

0.30.6

0.6

1818

2222

25

2829

32

35.536

40.745

4750

5355

6062

6672

80

8090

94

7 3507 550

11 70012 600

16 200

21 10021 900

28 800

35 00037 500

47 50057 500

64 50073 500

83 50095 500

106 000116 000

129 000151 000

185 000

197 000229 000

259 000

750770

1 2001 290

1 650

2 1502 240

2 930

3 5503 800

4 8505 850

6 5507 500

8 5509 750

10 80011 800

13 10015 400

18 900

20 10023 400

26 400

31 00037 000

46 50054 000

56 500

89 00073 500

114 000

114 000133 000

156 000224 000

199 000286 000

243 000325 000

330 000385 000

400 000565 000

670 000

615 000875 000

940 000

3 1503 750

4 7505 500

5 750

9 0507 500

11 600

11 70013 500

15 90022 800

20 20029 100

24 80033 500

34 00039 500

41 00057 500

68 000

62 50089 000

96 000

12

15

17

20

22

25

30

35

40

45

50

55

60

65

12FSF2212FSF22-1

15FSF2615FSF26-1

17FSF30

20FSF3220FSF35

22FSF37

25FSF4225FSF42-1

30FSF4730FSF50

35FSF5535FSF55-1

40FSF6240FSF62-1

45FSF6845FSF72

50FSF7550FSF80

55FSF90

60FSF9060FSF100

65FSF105

11.58.5

9.57

11

5.59.5

7

86

76.5

7.56

7.56.5

86

76

6

76.5

6

14.914.2

18.417.7

20.7

22.924.1

25.7

29.329.2

34.236

39.740

4544

50.750.4

55.958.4

64.7

66.872.7

76

0.0170.019

0.0320.035

0.049

0.0530.065

0.085

0.110.13

0.1550.235

0.2350.305

0.330.395

0.430.615

0.5750.90

1.25

1.11.7

2.05

φD φd φd1

C

U

B

r

α

r1

Boundary Dimensions(mm)

d D C B r r1 Umin min

Load CapacitiesDynamic Loads Limiting Loads(N) {kgf} (N) {kgf}

Cd Cs

Bearing Numbers

Mass(kg)

approx

Inner Ring SideFace Diameters

(mm)d1

approx

LimitingInclination

Angles(o)α

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NSK NEEDLE BEARING

B 217

SPHERICAL PLAIN BEARINGS

B 216

FSF

Bore Diameter 70 - 160 mm

φD φd φd1

C

U

B

r

α

r1

105110

120

120130

135

130140

150

150160

160170

180

180190

200210

220230

4050

55

4560

63

5065

70

5575

5580

85

7090

9570

10580

4958

64

5570

74

6076

82

7088

7093

98

85105

11090

120105

10.6

0.6

10.6

0.6

1.10.6

0.6

1.11

1.11

1

1.11

12

12

0.30.6

0.6

0.30.6

0.6

10.6

0.6

11

11

1

11

11

11

92100

110

105120

125

115130

140

130150

140160

165

155175

185180

205200

256 000293 000

345 000

330 000410 000

455 000

385 000500 000

575 000

510 000640 000

560 000750 000

815 000

745 000925 000

1 040 000920 000

1 330 0001 250 000

26 10029 800

35 500

33 50042 000

46 500

39 00051 000

58 500

52 00065 500

57 00076 000

83 500

76 00094 500

106 00094 000

136 000128 000

775 0001 110 000

1 380 000

1 000 0001 660 000

1 810 000

1 220 0001 970 000

2 260 000

1 460 0002 580 000

1 660 0002 980 000

2 880 000

1 970 0003 250 000

3 600 0002 610 000

4 300 0003 250 000

79 500113 000

140 000

102 000169 000

185 000

125 000201 000

230 000

149 000263 000

169 000305 000

294 000

201 000330 000

370 000266 000

440 000330 000

70

75

80

85

90

95

100

110

115

120

130140

150160

70FSF10570FSF110

75FSF120

80FSF12080FSF130

85FSF135

90FSF13090FSF140

95FSF150

100FSF150100FSF160

110FSF160110FSF170

115FSF180

120FSF180120FSF190

130FSF200140FSF210

150FSF220160FSF230

6.55.5

5.5

6.56

6

66

6

7.56

75.5

5.5

6.56

5.57

58

7881

89

8997

101

98105

113

110121

121130

133

130140

149156

166170

1.552.2

3.0

2.34.0

4.25

2.74.7

6.05

4.47.4

4.88.55

10.5

7.812.5

1411

1714

Boundary Dimensions(mm)

d D C B r r1 Umin min

Load CapacitiesDynamic Loads Limiting Loads(N) {kgf} (N) {kgf}

Cd Cs

Bearing Numbers

Mass(kg)

approx

Inner Ring SideFace Diameters

(mm)d1

approx

LimitingInclination

Angles(o)α

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NSK NEEDLE BEARING

B 219

SPHERICAL PLAIN BEARINGS (INCH DESIGN)

B 218

SF

Bore Diameter 12.700 - 152.400 mm

0.50000.62500.7500

0.87501.0000

1.25001.37501.5000

1.75002.00002.2500

2.50002.75003.0000

3.25003.50003.7500

4.00004.25004.5000

4.75005.00006.0000

22.22526.98831.750

36.51241.275

50.80055.56261.912

71.43880.96290.488

100.012111.125120.650

130.175139.700149.225

158.750168.275177.800

187.325196.850222.250

0.87501.06251.2500

1.43751.6250

2.00002.18752.4375

2.81253.18753.5625

3.93754.37504.7500

5.12505.50005.8750

6.25006.62507.0000

7.37507.75008.7500

9.5211.9114.27

16.6619.05

23.8026.1928.58

33.3238.1042.85

47.6252.3757.15

61.9066.6871.42

76.2080.9585.72

90.4795.25

104.78

18.2622.8327.43

31.9536.50

45.5949.2054.74

63.8873.0282.17

91.19100.33109.52

118.74128.02136.91

146.05155.58164.46

173.36182.63207.16

11.1013.8916.66

19.4322.22

27.7630.1533.32

38.8944.4550.01

55.5561.1166.68

72.2477.7783.34

88.9094.46

100.00

105.56111.12120.65

12 00018 70027 000

36 50048 000

74 50089 500

108 000

147 000192 000243 000

300 000365 000430 000

505 000585 000675 000

770 000865 000970 000

1 080 0001 200 0001 560 000

1 2201 9102 750

3 7504 900

7 6009 100

11 000

15 00019 60024 800

30 50037 00044 000

51 50060 00069 000

78 50088 50099 000

110 000122 000159 000

37 00058 00083 000

113 000148 000

231 000273 000335 000

455 000590 000750 000

925 0001 200 0001 330 000

1 570 0001 820 0002 080 000

2 370 0002 680 0002 990 000

3 350 0003 700 0004 650 000

3 8005 9008 500

11 60015 100

23 60027 80034 000

46 50060 50076 500

94 500114 000136 000

160 000186 000212 000

242 000274 000305 000

340 000380 000475 000

12.70015.87519.050

22.22525.400

31.75034.92538.100

44.45050.80057.150

63.50069.85076.200

82.55088.90095.250

101.600107.950114.300

120.650127.000152.400

5SF86SF107SF12

8SF1410SF16

12SF2013SF2215SF24

17SF2820SF3222SF36

25SF4027SF4430SF48

32SF5235SF5637SF60

40SF6442SF6845SF72

47SF7650SF8060SF96

76.56.5

6.56.5

6.566.5

6.56.56.5

6.56.56

666

666

665.5

0.0200.0360.057

0.0880.125

0.2350.350.425

0.650.941.3

1.852.453.1

3.94.855.9

7.18.459.95

11.513.517.5

14.317.821.4

25.028.6

35.738.943.3

50.057.265.1

72.279.486.5

94.1100.8108.0

115.8122.9130.0

137.4144.5167.4

---

--

---

---

-0.60.6

0.60.60.6

0.60.80.8

0.80.80.8

0.60.80.8

0.80.8

0.80.80.8

0.80.80.8

0.80.80.8

0.80.80.8

0.81.11.1

1.11.11.1

φD φd φd1

C

U

B

rb

α

ra

Boundary Dimensions(mm, inch)

d D C B U

LoadDynamic Loads(N) {kgf}

Cd

CapacitiesLimiting Loads

(N) {kgf}

Cs

BearingNumbers

Mass(kg)

approx

Inner Ring SideFace Diameters

(mm)d1

approx

LimitingInclination

Angles(o)α

Fillet Radii(mm)

Shaft(1) Housing(1)ra rb

max max

Note (1) For bearings 5SF8 through 25SF40 inclusive, the shaft is undercut so there is no fillet radius ra.

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B 220

NSK NEEDLE BEARING

B 221

NEEDLE ROLLER BEARINGS FOR UNIVERSAL JOINTSPages

Drawn Cup Type Inscribed Circle Diameter 10-21.3 mm ............................... B224-B225

Solid Type Inscribed Circle Diameter 12.170-32.600 mm .................... B226-B227

Needle roller bearings for universal joints are available as drawn cup andsolid. The drawn cup needle bearing has a large load capacity in spite ofits small cross-sectional height. Since the material for the drawn cup (outer ring) is a special alloy steel sheet developed by the bearing performswell regarding fatigue and shock resistance. If this drawn cup needlebearing is applied, an economical universal joint with a large torquecapacity can be designed.

A method for fixing a drawn cup needle bearing to the yoke hole is thetightening method (staking method). In some cases, the method of fixationwith a rose washer is adopted. In any case, mounting is carried out usingdedicated assembly equipment.

As the universal joint uses solid needle bearings in many cases and hasdemonstrated a high shock resistance, the bearing is particularly well-suitedfor use in universal joints in medium and large trucks.

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NSK NEEDLE BEARING

B 223

NEEDLE ROLLER BEARINGS FOR UNIVERSAL JOINTS

B 222

Types

Needle rolling bearings for universal joints are available in the types inTable 1.

Drawn Cup Needle Roller Bearings for Universal Joints

These bearings are assembled into universal joints with their own dedicatedassembly equipment.

Universal joints have the following characteristics:(1) It is possible to give a light preload between the joint spider end face

and the bearing bottom.(2) It is possible to align the joint spider rotating center with the shaft

rotating center as necessary.(3) Smaller size, lighter weight and working energy efficiency contribute to a

reduced cost.

Fitting

For each fitting tolerance of the joint spider and yoke hole, k6 and F7 arerecommended respectively.

Accuracy, Roughness and Hardness of the Joint Spider and Yoke Hole

Drawn cup needle bearings form a correct raceway track for the needlerollers only after press fitting into a yoke hole of specified dimensions. It istherefore necessary to finish the yoke hole accurately according to thedimensions specified. Accuracy, roughness and hardness of the joint spiderand yoke hole are the same as standard drawn cup needle bearings (pleaserefer to page B39). However, yoke hardness is required to be HRC23 to 28.

Solid Needle Roller Bearings for Universal Joints

These bearings have proven past performance and are fixed to the yokehole with a snap ring or detent plate. Because they are solid with a thick-wallouter ring, the bearing is well-suited for use in universal joints in medium andlarge vehicles on which a heavy load is imposed.

Accuracy

The dimensional tolerance of each part varies depending on each bearing.Please consult NSK for details.

Fitting

As for the fittings between the bearing outside diameter and yoke hole, atransient or tight fit is commonly applied and the shaft diameter should bedetermined so that the radial minimum internal clearance is maintained atabout 0.005 mm. For each bearing number, please consult NSK.

Code Details

ZYClosed end drawn cup needle bearing that is fixedto the yoke by tightening or with a rose washer.

Closed end solid needle bearing that is fixed tothe yoke with a snap ring or a detent plate. Theouter ring has a sealing structure that variesdepending on the fixation method.

NSA

Table 1 Bearing Types

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NSK NEEDLE BEARING

B 225

ZY-108ZY-109ZY-1210

ZY-1411ZY-1612ZY-1813ZY-2115

6.96.6

10

12141737

16.01615.01618.020

20.02022.02024.62029.002

10.01410.01112.073

14.00916.00918.00921.316

10.03610.02612.095

14.03516.03518.03521.337

DRAWN CUP NEEDLE ROLLER BEARINGS FOR UNIVERSAL JOINTS

B 224

ZY

Inscribed Circle Diameter 10 - 21.3 mm

DRAWN CUP NEEDLE ROLLER BEARINGS FOR UNIVERSAL JOINTS

161518

20222429

8.959.359.95

11.8512.9713.8515.80

10.159.35

10.50

12.0913.3514.3515.80

1.301.751.30

2.252.372.253.00

1167.5

8.189.68

10.68

10

12

14161821.3

6 6005 8508 300

9 85011 90013 40017 900

675600845

1 0001 2101 3701 820

3 7503 9005 350

6 8008 850

10 60014 000

380395550

695900

1 0801 430

Boundary Dimensions(mm)

Fw D C C1 C2 D1

BearingNumbers

Mass(g)

approx

Ring GageDimensions

(mm)

Plug Gage Dimensions(mm)

Go End No-Go End

Basic DynamicLoad Ratings

(N) {kgf}Cr

Limiting Loads

(N) {kgf}Pmax

φD φD1 φFw

C1

C2

C

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NSK NEEDLE BEARING

B 227

1 2001 2401 360

1 1401 7301 490

1 5202 1802 430

2 9203 600

3 9004 450

1 8701 7702 040

1 8602 5302 760

2 8603 9504 800

6 4007 500

8 5009 100

NSA02001NSA02601NSA02424

NSA024ANSA02901NSA02803

NSA02903NSA03301NSA03501

NSA04002NSA04204

NSA04604NSA04803

221

333

322

24

44

244028

385449

548090

135165

205225

φD φFw φDbφFw

C

t t

C

m h

l

Example 3 Example 4

SOLID NEEDLE ROLLER BEARINGS FOR UNIVERSAL JOINTS

B 226

NSA

Inscribed Circle Diameter 12.170 - 32.600 mm

20.52623.813

252928

293335

4042

4648

161615

16.817.518.5

17.521.223

25.530

31.533.2

242

3.33.53.5

3.544

46

76

---

8.59.5

10

9.5--

--

--

---

2.522

2--

--

--

---

---

---

-18

2524

---

---

---

-2

32

11 80012 20013 400

11 20016 90014 600

14 90021 40023 800

28 60035 500

38 00043 500

18 40017 40020 000

18 20024 90027 100

28 00038 50047 000

62 50073 500

83 50089 500

12.17014.27014.724

14.80017.00017.780

18.46021.94123.020

26.99528.600

30.51732.600

φD φDφFw φFw

C

t t

C

Example 1 Example 2

Boundary Dimensions(mm)

Fw D C

Dimensions(mm)

t l m b h

Basic Load(N)

Cr Cor

Ratings{kgf}

Cr Cor

BearingNumbers Example

Mass(g)

approx

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NSK NEEDLE BEARING

B 229B 228

Type

Metric

Inch

Code Details

FC

FCL

FCB

FCBN

RC

RCB

RC-FS

RCB-FS

For torque transmissions only, containing stainless steel spring

For torque transmissions only, containing stainless steel spring

For torque transmissions and imposing of radial load, containing stainless steel spring

Narrow width type. For torque transmission and imposing of radial load, containing stainless steel spring

For torque transmission only, containing plastic spring

For torque transmission and imposing of radial load, containing plastic spring

For torque transmission only, containing a stainless steel spring

For torque transmission and imposing of radial load, and containing a stainless steel spring

Table 1 Types of Drawn Cup Roller Clutches

Remarks Drawn cup metric roller clutches have a standard structure of a spring pushing multiple rollers. In addition, the Ktype with a structure of a spring pushing a single roller is available for low torque (K is attached to the end of theproduct number).

DRAWN CUP ROLLER CLUTCHESPages

FC, FLC, RC Shaft Diameter 4-30 mm ...................................... B234-B235

FCB, FCBN, RCB Shaft Diameter 4-30 mm ...................................... B236-B237

Drawn cup roller clutches are very compact one-way clutches with aunique drawn cup outer ring. In spite of their lightweight and small sectionheight, torque capacity is high. Operation is accurate and the frictiontorque when overrunning is small. Mounting is as eazy as drawn cupneedle bearings.

Design and Types

Drawn cup roller clutches are composed of an outer ring, which formsthe cam face on the drawn cup bore surface by precise deep drawing, aswell as rollers, a cage and a spring.

The types of drawn cup roller clutches are shown in Table 1 and thestates of engagement and overruns are shown in Fig. 1 and Fig. 2.

The metric FCP series for low-torque transmissions and plastic housingsare available. Please consult NSK for further details.

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NSK NEEDLE BEARING

B 231

DRAWN CUP ROLLER CLUTCHES

B 230

Fig. 2 Clutch OverrunBy the relative rotation of the clutch and the

shaft mounted to housing, the roller operates freefrom the wedge face and overruns. In this case,the housing and the clutch overrun in a clockwisedirection and the shaft overruns in acounterclockwise direction.

Fig. 1 Clutch in EngagementWith the force of the spring mounted inside

the clutch produced by the relative rotation of theclutch and the shaft mounted to the housing, theroller contacts the wedge face and engages it.The engagement directions are oppositedepending on whether the shaft or housing isdriven.

Housing Housing

HousingHousing

(Driving) Resting

Resting

(Driven)

(Driven)

(Driving)

ShaftShaft

Shaft Shaft

(Overrunning direction)

(Overrunning direction)

Item

Out-of-Roundness Tolerance

Cylindrical Tolerance

Roughness, Ra

Hardness

Shaft Housing

IT3――2IT3――2

0.4

HRC58 to 64

IT4 IT5―― to ――2 2IT4 IT5―― to ――2 2

1.6

Table 2 Accuracy, Roughness and Hardness

Note Please refer to Section 5.2 on page A34 and Section 5.3 onpage A35 for further details.

Type

Metric

Inch

FC, FCLFCB, FCBN

RC (FS)RCB (FS)

h6

h6

N7

J7

Fitting Tolerance

Shaft Housing Bore

Table 3 Fittings for Drawn Cup Roller Clutches

Applications

Specifications of Shaft and Housing

(1) Accuracy, Roughness and HardnessDrawn cup roller clutches do not usually use an inner ring but use the shaft

as the raceway ring. Made of a thin steel plate, they perform best only withpress fitting into a normal housing. Therefore, the dimensional accuracy andhardness of the shaft and housing are required to satisfy the specificationsshown below (Table 2).

(2) Housing RigidityIn order to obtain the best performance from drawn cup roller clutches, the

housing must have sufficient thickness and be designed to avoid deformationeven if torque and radial loads are imposed. Special attention should bepaid material quality and wall thickness of the housing. Housing materialusually consists of steel. However, if cast iron housing is used, themaximum load torque value must not exceed 70% of torque capacity. For aluminum housing, the same value must not exceed 50% of torquecapacity.

Even with steel housings, the outside diameter shoud be larger than theminimum outside diameter dimension of the housing shown in the bearingtable.

Fitting

Drawn cup roller clutches can perform as designed only when used withstandard fittings. Therefore, the shaft and housing bore should be finished tothe recommended fitting dimensions shown in Table 3. The recommendedvalues shown in Table 3 are for steel, provided that the housing outerdiameter is larger than the minimum dimension shown in the bearing table.

Depending on application conditions, a fitting change may be required.

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NSK NEEDLE BEARING

B 233

DRAWN CUP ROLLER CLUTCHES

B 232

Mounting

For press fitting of drawn cup roller clutches into the housing bore, it isnecessary to prevent the outer ring from deformation and damage by usingan appropriate jig as shown Fig. 4. Precautions for mounting are describedbelow:

(1) Use a hand press or similar for press fitting. Avoid applying blows witha hammer or similar instrument. (Fig. 3)

(2) Place the roller clutch side face on the marked side onto the jigshoulder. For accurate press fitting, provide a stopper for the locationsand guide. (Fig. 4)

(3) A snap ring and shoulder for positioning the roller clutch are notrequired. When press fitting the roller clutch into the housing with ashoulder or a closed and, care should be taken not to have the side faceof the roller clutch contact the shoulder or the bottom. (Fig. 5)

(4) When assembling the shaft, keep rotating it while mounting. A largechamfer for the corner of the shaft is advisable. (Fig. 6)

Operating Temperature and Engagement Speed

The operating temperature of drawn cup roller clutches should be 90°C orless for a standard plastic spring and 120°C or less for a stainless steelspring.

When engagement speed exceeds 200 cycles per minute and whenoperation of the spring is impaired by low temperatures, a clutch with astainless steel spring must be applied.

Lubrication

Oil lubrication is generally recommended and, in the conditions describedbelow, it is required.○ Overrunning○ High engagement speed○ Very low transmitting torque○ High operating temperatureAs grease lubrication is common, NSK produces bearings packed with

standard grease.Grease containing extreme pressure additives should be avoided as it may

cause slippage.Hardening of grease due to deterioration and formation of sludge impair

the lock performance of the clutch. Extreme caution must be taken fordeterioration of lubricant.

Please consult NSK regarding the lubricant to be applied.

Engagement Direction

Clutch engagement takes place when rotating the housing in the directionof the arrow (←LOCK) marked on the side face of the drawn cup outer ring.(Refer to Fig. 7)

Cautions in Application

Some machines using a one-way clutch generate inertia during operation.In such cases, it is necessary to accurately determine the load torqueimposed on the clutch.

In some cases, the torque actually imposed on the clutch is a far greatervalue than the value calculated based on the power source such as a motoror brake. Sometimes the transient response at the instant the clutch islocked, in particular, is this excessive load torque. (This is caused by theinertia force of the whole motion system surrounding the mounted clutch andtherefore can hardly be calculated beforehand.)

If such a case is anticipated, it is necessary to select a clutch aftermeasuring the impact value and correctly grasping the torque imposed on theclutch. In any case, the torque imposed on the clutch should not exceed thetorque capacity as shown in the bearing table.

If vibration is involved, the clutch function may be destroyed. Therefore,either refrain from using roller clutches when vibration is involved or attach aneffective protection device. Furthermore, for those parts where an accidentmay cause injury or critical damage, add effective protection devices to theexisting equipment.

Fig. 3

Fig. 4

A: Housing bore diameter -0.04 mmB: Shaft diameter -0.45 mmC: Insertion amount from housing side face

(minimum 0.25 mm)

15°

C

O Ring

A

B

Fig. 5

Chamfer

Minimuminsertion amount

0.25 mm

Fig. 6 Fig. 7

Large Chamfer

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NSK NEEDLE BEARING

B 235

DRAWN CUP ROLLER CLUTCHES

B 234

FC・FCL

RC

Shaft Diameter 4 - 30 mm

0.2500

0.3750

0.5000

0.6250

0.7500

1.0000

81010

11.11211.112

1214

15.87515.875

1416

18

19.05019.050

20

22.22522.225

22

25.40025.400

2632

33.33833.338

37

0.43750.4375

0.62500.6250

0.75000.7500

0.87500.8750

1.00001.0000

1.31251.3125

61212

12.7012.70

1212

12.7012.70

1212

16

12.7012.70

16

15.8815.88

16

15.8815.88

1620

15.8815.88

20

0.50000.5000

0.50000.5000

0.50000.5000

0.62500.6250

0.62500.6250

0.62500.6250

0.312.451.96

1.961.96

3.244.02

5.105.10

4.415.30

13.24

8.348.34

14.22

16.1816.18

20.59

22.0622.06

30.8968.65

46.5846.58

95.12

0.0320.2500.200

0.2000.200

0.3300.410

0.5200.520

0.4500.540

1.350

0.8500.850

1.450

1.6501.650

2.100

2.2502.250

3.1507.000

4.7504.750

9.700

46

6.350

8

9.525

10

12

12.700

14

15.875

16

19.050

2025

25.400

30

0-0.25

0.904.12.7

3.63.6

3.36.8

7.77.7

3.99.1

12

9.19.1

16

1414

18

1515

2134

2626

42

121414

1616

1820

2222

2325

27

2828

29

3030

31

3636

3846

4848

51

F-48F-68F-68

B-45B-45

F-810FH-810

BH-68BH-68

F-1010FH-1010

FH-1212

BH-88BH-88

F-1412

BH-108BH-108

F-1612

B-1210B-1210

F-2012F-2516

BH-168BH-168

F-3020

―FJ-69FJ-69

J-45J-45

FJ-810FJH-810

JH-68JH-68

FJ-1010FJH-1010

FJH-1212

JH-88JH-88

FJ-1412

JH-108JH-108

FJ-1612

J-1210J-1210

FJ-2012FJ-2516

JH-1612JH-1612

FJ-3020

FC-4K(1)FC-6FC-6K(1)

――

FCL-8K(1)FC-8

――

FCL-10K(1)FC-10

FC-12

――

FC-14K(1)

――

FC-16

――

FC-20FC-25

――

FC-30

―――

RC-040708RC-040708-FS(2)

――

RC-061008RC-061008-FS(2)

――

RC-081208RC-081208-FS(2)

RC-101410RC-101410-FS(2)

RC-121610RC-121610-FS(2)

――

RC-162110RC-162110-FSS(2)

φD φFw

C

FC

φD φFw

C

RC

Boundary Dimensions(mm)

Fw D C

Torque Capacities(N・m) {kgf・m}

Roller Clutch Numbers

Metric Design Inch design

Mass(g)

approx

MinimumOutside

Diametersof Housing

(mm)

Matching Support NeedleRoller Bearing Numbers

Full Complement With Cage

Notes (1) The suffix K indicates low-torque products.(2) Even if the suffix FS is not marked on the product, it can be distinguished from others because its cage is

always red.Remarks For stock availability, please contact NSK.Please consult NSK when making a selection.

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NSK NEEDLE BEARING

B 237

DRAWN CUP ROLLER CLUTCHES

B 236

FCB・FCBN

RCB

Shaft Diameter 4 - 30 mm

1 1901 6302 430

3 7003 700

2 820

3 800

4 4004 400

4 9004 900

4 100

5 5505 5505 100

6 8509 7509 750

7 000

121166248

375375

288

390

450450

500500

420

565565520

700995995

715

FCBN-4K(1)FCBN-6K(1)FCB-8

――

FCB-10

FCB-12

――

――

FCB-16

――

FCB-20

FCB-25――

FCB-30

―――

RCB-061014RCB-061014-FS(2)

RCB-081214RCB-081214-FS(2)

RCB-101416RCB-101416-FS(2)

RCB-121616RCB-121616-FS(2)

―RCB-162117RCB-162117-FS(2)

540735

1 200

2 0102 010

1 450

2 240

2 5802 580

3 0503 050

2 670

3 7003 7003 550

4 7006 7506 750

5 250

5575

122

205205

148

228

263263

310310

272

375375360

480690690

535

2.73.8

11

1414

13

18

1616

2323

24

262628

484545

54

161820

2222

25

27

2828

3030

31

363638

464848

51

0.3750

0.5000

0.6250

0.7500

1.0000

101214

15.87515.875

16

18

19.05019.050

22.22522.225

22

25.40025.40026

3233.33833.338

37

0.62500.6250

0.75000.7500

0.87500.8750

1.00001.0000

1.31251.3125

91020

22.2222.22

20

26

22.2222.22

25.4025.40

26

25.4025.4026

3027.0027.00

30

0.87500.8750

0.87500.8750

1.00001.0000

1.00001.0000

――

0.190.564.02

5.105.10

5.30

13.24

8.348.34

16.1816.18

20.59

22.0622.0630.89

68.6546.5846.58

95.12

0.0190.0570.410

0.5200.520

0.540

1.350

0.8500.850

1.6501.650

2.100

2.2502.2503.150

7.0004.7504.750

9.700

468

9.525

10

12

12.700

15.875

16

19.050

20

2525.400

30

C

FCB

φD φFw

C

RCB

0-0.25

Boundary Dimensions(mm, inch)

Fw D C

Torque Capacities(N・m) {kgf・m}

Roller Clutch Numbers

Metric Design Inch design

Mass(g)

approx

MinimumOutside

Diametersof Housing

(mm)

Basic DynamicLoad Ratings

(N) {kgf}Cr

Limiting Loads

(N) {kgf}Pmax

Notes (1) The suffix K indicates low-torque products.(2) Even if the suffix FS is not marked on the product, it can be distinguished from others because its cage is

always red.Remarks For stock availability, please contact NSK.Please consult NSK when making a selection.

φD φFw

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NSK NEEDLE BEARING

B 239B 238

Nominal Outside Diameter

over incl

Tolerance

high low

Nominal Width

over incl

Width Tolerance

high low

30

30

120

+0.30

+0.35

+0.10

+0.10

- 6 +0.2 -0.2

Table 2 Outside Diameter ToleranceUnits: mm

Table 3 Width ToleranceUnits: mm

OIL SEALS FOR NEEDLE BEARINGSPages

Single-Lip Synthetic Rubber Seals ............................................................................................................. B242

Double-Lip Synthetic Rubber Seals............................................................................................................ B242

Needle roller bearing oil seals are manufactured to meet the sectionheight of drawn cup needle bearings. It is possible, therefore, to mountthem onto the side face of a needle bearing without specially machining thehousing bore.

The oil seals of VC and KC bearings serve as packing because theiroutside circumferences are rubber and facilitate easy mounting.

Types

The types of needle roller bearing oil seals are shown in Table 1.

Accuracy

The dimensional tolerance of oil seals complies with ISO6194 (JIS B 2402).The outside diameter and the width tolerances are shown in Table 2 andTable 3, respectively.

Type Details

VC

KC

Synthetic rubber

Synthetic rubber

Single lip

Double lip

Table 1 Types of Oil Seals

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NSK NEEDLE BEARING

B 241

OIL SEALS FOR NEEDLE BEARINGS

B 240

Fig. 3 Typical Examples of Oil Seal Mounting

APPLICATIONS

Mounting

When single-lip VC bearings are mounted, the lip should be bent inward toprevent lubricant leakage and outward to prevent entry of foreign matter.

Double-lip KC bearings, which have good sealing properties and highresistance to foreign particles, emphasize the prevention of entry of foreignmatter and are provided with sufficient interference, so the main lip should bebent outward.

As wear and heat are easily generated if there is no oil film between theseal lip and the shaft, a coating of oil must be applied to the seal whenmounting.

When press fitting the seal into the housing as prescribed, any shock thatmay cause deformation to the seal should be avoided. It is recommended touse a press-fitting jig that is capable of equally pushing the whole back faceof the seal (Fig. 1).

Mounting on Shaft

If there is no slope in the shaft end or there is a key way or screw thread,the lip can be protected from any damage or peeling by using a bush asshown in Fig. 2, since the bore diameter of the seal is less than the shaftdiameter.

Coating grease onto the lip can make mounting easier and protect it. It isrecommended that the shaft end to which the seal is mounted should bechamfered at about 30 degrees.

Limiting Speed

Limiting speed, which varies depending on the eccentricity of the shaft incontact and roughness of the finished face, is generally 10 m/sec for VC and6 m/sec for KC bearings. In the case of outer ring rotation, it should be harf ofthe above values. The maximum operating temperature is about 120°C forshort periods of operation.

A typical example of oil seal mounting is shown in Fig. 3.

a+B=b-(1 to 2)mmd=D-(0.1 to 0.3)mm

B

D

d

b

a

Fig. 1

Fig. 2

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NSK NEEDLE BEARING

■EXAMPLE FIGURES

■APPENDICES

FIGURES Page

・ MOTOR VEHICLES .................................................................................. C 2

・ CONSTRUCTION AND CARGO HANDLING EQUIPMENT ....................... C 9

・ AGRICULTURAL MACHINERY................................................................. C19

・ MACHINE TOOLS.................................................................................... C20

・ BUSINESS MACHINES ............................................................................ C26

・ ELECTRIC AND PNEUMATIC EQUIPMENT.............................................. C30

・ TWO-STROKE ENGINES ......................................................................... C39

・ HYDRAULIC MACHINES.......................................................................... C41

・ OTHERS .................................................................................................. C44

APPENDICES

APPENDIX 1 CONVERSION TABLE FROM SI

(INTERNATIONAL UNITS) SYSTEM ...................................... C48

APPENDIX 2 N-kgf CONVERSION TABLE................................................. C50

APPENDIX 3 kg-lb CONVERSION TABLE.................................................. C51

APPENDIX 4 °C-°F CONVERSION TABLE ................................................. C52

APPENDIX 5 VISCOSITY CONVERSION TABLE........................................ C53

APPENDIX 6 inch-mm CONVERSION TABLE............................................ C54

APPENDIX 7 HARDNESS CONVERSION TABLE (REFERENCE)................ C56

APPENDIX 8 PHYSICAL AND MECHANICAL PROPERTIES OF MATERIALS .. C57

APPENDIX 9 TOLERANCES FOR SHAFT DIAMETERS.............................. C58

APPENDIX 10 TOLERANCES FOR HOUSING BORE DIAMETERS .............. C60

APPENDIX 11 VALUES OF STANDARD TOLERANCE GRADES IT ............. C62

APPENDIX 12 SPEED FACTOR fn ............................................................... C64

APPENDIX 13 FATIGUE LIFE FACTOR fh AND FATIGUE LIFE L・Lh ........... C65

APPENDIX 14 BOUNDARY DIMENSIONS OF RADIAL BEARINGS.............. C66

APPENDIX 15 BOUNDARY DIMENSIONS OF THRUST BEARINGS ............ C67

OIL SEALS FOR NEEDLE BEARINGS

B 242

8

9

10

11

1215

1316

1417

161819

19

2022

2122

2224

2324

2425

2627

2829

3233

3537

3740

42

4245

4750

5255

62

2.5

2.5

2.5

2.5

2.53

2.53

2.53

2.533

3

33

33

33

33

33

44

44

44

44

44

4

44

44

44

4

4

5

6

7

8

9

10

12

13

14

15

16

17

18

20

22

25

28

30

32

35

40

45

50

BoundaryDimensions (mm)d D B

Oil Seal Numbers

VC KC

VC-4825

VC-5925

VC-61025

VC-71125

VC-81225VC-8153

VC-91325VC-9163

VC-101425VC-10173

VC-121625VC-12183VC-12193

VC-13193

VC-14203VC-14223

VC-15213VC-15223

VC-16223VC-16243

VC-17233VC-17243

VC-18243VC-18253

VC-20264VC-20274

VC-22284VC-22294

VC-25324VC-25334

VC-28354VC-28374

VC-30374VC-30404

VC-32424

VC-35424VC-35454

VC-40474VC-40504

VC-45524VC-45554

VC-50624

――

――

――

―――

KC-14203KC-14223

KC-15213KC-15223

KC-16223KC-16243

KC-17233KC-17243

KC-18243KC-18253

KC-20264KC-20274

KC-22284KC-22294

KC-25324KC-25334

KC-28354KC-28374

KC-30374KC-30404

KC-32424

KC-35424KC-35454

KC-40474KC-40504

KC-45524KC-45554

KC-50624

φD φd

φD φd

B

B

VC

KC

Please consult NSK when making a selection.

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C 2 C 3

EXAMPLE FIGURES NSK NEEDLE BEARING

MOTOR VEHICLES

Fig. 1 Transmission Pilot

This illustrates the application of cage & needle roller assemblies inthe transmission pilot. Due to considerable misalignment, it isdesirable to provide a radial internal clearance of at least 0.038mm.

Fig. 2 Constant Mesh Transmission

This illustrates the application of needle rollers to the countershaftor main idler gear. In many cases, cage & needle roller assembliesare applied instead of needle rollers.

Fig. 3 Automatic Transmission

This illustrates a typical application in automatic transmissions.In particular, since thrust from the output shaft is expected, athrust needle roller bearing with a large roller diameter is appliedto the output shaft. A full complement is applied to the planetarygear. These rollers are usually treated with special crowning.

Fig. 4 Manual Steering System

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C 4 C 5

EXAMPLE FIGURES NSK NEEDLE BEARING

Fig. 5 Ball Screw Steering Sector Shaft

For large trucks and buses, solid bearings are used. Forpassenger cars, however, drawn cup needle roller bearings areapplied in many cases.

Fig. 6 Power Steering Systems

Drawn cup needle roller bearings and thrust needle rollerbearings are applied to the hydraulic mechanism in powersteering systems.

Fig. 7 Torque Converter

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C 6 C 7

EXAMPLE FIGURES NSK NEEDLE BEARING

Fig. 8 Air Pump (3-vane)

In order to reduce size and weight, drawn cup needle rollerbearings with a cage are applied to the vanes and rotor shaft.A two-vane type is also available.

Fig. 9 Kingpin

Drawn cup needle roller bearings areapplied to the kingpin. In some cases,a g rease n ipp le i s a t tached fo rlubrication.

Fig. 10 Clutch Finger

Fig. 13 Universal Joint

(Example of Drawn Cup Bearing Application)

This illustrates an application of drawn cup needle rollerbearings in a universal joint to reduce size, weight andcost.

Fig. 12 Engine Camshaft Follower

Fig. 11 Universal Joint (Example of Solid Bearing Application)

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Input Shaft

C 8 C 9

EXAMPLE FIGURES

CONSTRUCTION AND CARGO HANDLING EQUIPMENT

NSK NEEDLE BEARING

Fig. 14 Automotive Air-Conditioner Compressor

This illustrates the application in the compressor of a swash plateair conditioner, with a characteristic structure involving supportby a thrust bearing.

Fig. 15 Alternator (AC Generator)

A drawn cup needle roller bearing with a cage is applied on theopposite side of the pulley to reduce size, weight and cost.

Fig. 16 Planetary Gear Transmission

For transmission in heavy construction and agriculturalmachinery, needle rollers are generally applied inside theplanetary gear and placed in two rows for stability. Forassembly reasons, cage & needle roller assemblies are alsoused.

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C 10 C 11

EXAMPLE FIGURES NSK NEEDLE BEARING

Input Shaft

Fig. 18 Detailed Drawing of Clutch Pack

Two units of cage & needle roller assemblies are commonlyapplied to the gear support of the clutch pack. This bearingusually runs with a light load or without any load and does notrun if a load is imposed.In such an application, a bearing with a static load rating of 4 to7 times that of the static load should be selected.

Fig. 17 Constant Mesh Transmission

(Using Clutch Pack)

This illustrates the constant mesh transmission in termsof the intermediate shaft of a large-size front end loaderwith rubber tires. Speed change is facilitated by a discclutch pack. Cage & needle roller assemblies are appliedto this intermediate shaft.

Input Shaft

Input Shaft

Reverse Idler Gear

Fig. 20 Six-Speed Transmission

The figure shows a six-speed sliding mesh transmission, which is basically athree-speed transmission with a two-speed power shift in the earlier stage.

Fig. 19 Three-Speed Transmission

The figure shows an example of the three-speed transmission of a garden tractor or the like.Cage & needle roller assemblies are applied to the countershaft and planetary gear. Cage &needle roller assemblies are also used as clutch support on the right-hand side of a one-wayclutch.

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C 12 C 13

EXAMPLE FIGURES NSK NEEDLE BEARING

Fig. 22 Final Reduction Gear

The structure is similar to Fig. 21.Two rows of cage & needle roller assembliesare also applied to this device to enhancethe stability of the gears. Rollers treatedwith a proper crowning are recommended.

Fig. 21 Final Reduction Gear

for Large Tractor

For rubber-tire tractors used in construction,a planetary final reduction gear is used asshown in the figure. In this case, since theload is large and space is limited, cage &needle roller assemblies are used inconsideration of the large load capacity,compact size, assembly, and service.

Input Shaft

Fig. 23 Final Reduction Gear

In some cases, a final reduction gear ispositioned close to the differential gears asshown in this figure. Instead of cage & needleroller assemblies, a single needle roller bearingis integrated into the two rows and the rollersare kept separate by a hardened spacer. It isabsolutely essential that the needle rollers havethe proper crowning.

Fig. 24 Auxiliary Gearbox

This illustrates an application of cage & needle roller assemblies tothe planetary gears of an auxiliary gearbox.

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C 14 C 15

EXAMPLE FIGURES NSK NEEDLE BEARING

B―B

A

A

B

B

Input Shaft

Fig. 25 Governor

The governor of a diesel engine is one of theparts where fretting corrosion or false brinellingis easily caused by vibration. In the figure, adrawn cup, full complement bearing is appliedto the pivot arm.

Fig. 27 Hydraulic Pump Drive Unit

For hydraulic pump drive units in equipment such as largescrapers, which generally use aluminum or copper alloy metal, ifforced lubrication is not possible, the application of a needle rollerbearing facilitates lubrication as shown in the figure.

Fig. 26 Sheave for Cargo

Handling Vehicle

Fig. 28 Two-Speed Transmission PTO Unit

The power take-off (PTO) of a large two-speed tractor foragricultural use is successfully designed very compactly with acombination of drawn cup needle roller bearings and thrustbearings.

Fig. 29 Truck Roller in Forklifts

Fig. 31 Control System Linkage

Fig. 30 Forklift and Truck Roller

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C 16 C 17

EXAMPLE FIGURES NSK NEEDLE BEARING

A

A

C

C

B

B

Fig. 32 Control Lever System

For the control lever system in equipment such as constructionmachinery, there has been a switch from plain metal to needleroller bearings for smoother performance and lubrication.Depending on the applicable part, due consideration is soughtfor enabling re-lubrication. Detailed cross-sectional drawings foreach part are shown on the following page.

Fig. 32.1 Cross-Section A-A

Fig. 32.2 Cross-Section B-B

Fig. 32.3 Cross-Section C-C

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C 18 C 19

EXAMPLE FIGURES

AGRICULTURAL MACHINERY

NSK NEEDLE BEARING

Fig. 33 Hydraulic Cylinder for Bulldozer Blade Operation

Fig. 34 Scraper Linkage

Fig. 35 Hydraulic Cylinder for Shovel Operation

Fig. 36 Grain Reaping Machine

Fig. 37 Tractor Bolster

A compact thrust needle roller bearing isapplied to the thrust pad of a tractor bolster.A drawn cup needle roller bearing is also usedat the same time for smoother operation.

Fig. 38 Pitman

For superior wear resistance and operating efficiency, a drawn cupneedle roller bearing is applied to the pitman crank and crankpin.

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C 20 C 21

EXAMPLE FIGURES

MACHINE TOOLS

NSK NEEDLE BEARING

Fig. 39 Machine Tool Gearbox

Fig. 40 Feeding Handle for Machine Tool

Fig. 41 Multi-Spindle Drill

In the case of multiple spindles occupying a limited space,such as a multiple spindle drilling machine, a drawn cupneedle roller bearing is recommended.

Fig. 42 Roller Leveler

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C 22 C 23

EXAMPLE FIGURES NSK NEEDLE BEARING

Fig. 43 Back-Up Roll and Working Roll

Fig. 44 Crane Wheel

Fig. 45 Worm Driving Shaft

Fig. 46 Small Drill Press Spindle

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C 24 C 25

EXAMPLE FIGURES NSK NEEDLE BEARING

Fig. 47 Gearbox

Fig. 48 Gearbox

Fig. 49 Conveyer Driving Reduction Gear

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C 26 C 27

EXAMPLE FIGURES

BUSINESS MACHINES

NSK NEEDLE BEARING

Fig. 50 Magnetic Tape Driving Pulley for Electronic Computers

Fig. 51 Copying Machine Side Frame

Fig. 52 Copying Machine Side Frame

The application of a closed drawn cup needle roller bearing tothe shaft end contributes to cost reduction and enhancement ofseal performance.

Fig. 53 Copying Machine Paper Feed Mechanism

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C 28 C 29

EXAMPLE FIGURES NSK NEEDLE BEARING

Fig. 55 Speed Reducer for Business Machines

Fig. 54 Copying Machine Side Frame

(In Case of Frequent Misalignment)

In case misalignment cannot be avoided, thespherical housing may be used as shown inthe figure.

Fig. 57 Copying Machine

Paper Feed Roll Mechanism

Fig. 58 Copying Machine Drive Roll (With Small Roll Diameter)

Fig. 56 Copying Machine Paper Feed Roll

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C 31C 30

EXAMPLE FIGURES

ELECTRIC AND PNEUMATIC EQUIPMENT

Fig. 59 Electric Drill

The application of a drawn cup needle roller bearing contributesto shortening the distance between shafts and reduces size andweight.A needle roller bearing with a cage is applied to the motor shaftdue to high-speed rotation.

Fig. 60 Electric Polisher

Fig. 61 Hedge Trimmer

The figure shows the crankshaft of a hedge trimmer. A hardenedsteel ball is used as the center shaft because an axial loadthrough worm gears is imposed there.

Fig. 62 Circular Saw

Since ball bearings are commonly applied to motor fan shafts,the housing space on the right-hand side of the spindle shaft isconsiderably limited. Accordingly, drawn cup needle rollerbearings are used in many cases. In order to prevent grease inthe gearbox from entering into the motor, a closed type bearingis applied.

NSK NEEDLE BEARING

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C 32 C 33

EXAMPLE FIGURES NSK NEEDLE BEARING

Fig. 64 Shaper Saw

Fig. 63 Angular Saw

Fig. 65 Rivetter

Fig. 66 Planetary Gears of Air Drill

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C 34 C 35

EXAMPLE FIGURES NSK NEEDLE BEARING

Fig. 68 Polisher

It is possible to use the housing as a throughhole by changing the drawn cup needle rollerbearing on the upper part of the spindle shaftto a closed type.

Fig. 69 Nut Setter

Fig. 67 Jig Saw

Two drawn cup needle rollerbearings are applied to supportthe blade and counter balancedriving gears.

Fig. 70 Agitator Shaft Fig. 71 Pulley Support

This is a good example of low-cost design,showing that a single drawn cup needle rollerbearing with a seal can deliver stableperformance without maintenance over a longperiod of time to facilitate long life.

Fig. 72 Agitator Shaft

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C 36 C 37

EXAMPLE FIGURES NSK NEEDLE BEARING

Fig. 74 Spank Agitator

Fig. 73 Spank Mechanism

This is a typical example of a vertical agitatorin which a ball bearing was replaced with aneedle roller bearing to reduce size.

Fig. 76 Washer and Dryer Two-Speed Transmission

Fig. 75 Washer and Dryer

Fan-Drive Pulley

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C 38 C 39

EXAMPLE FIGURES

TWO-STROKE ENGINES

NSK NEEDLE BEARING

Fig. 77 Washer and Dryer Two-Speed Transmission

Fig. 78 Washing Machine Basket Drive Shaft

Fig. 79 Chain Saw Engine

Many drawn cup needle roller bearings are applied to the chainsaw engine, contributing to its lighter weight. Application of adrawn cup roller clutch to the starter allows further simplificationof operation.

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C 40 C 41

EXAMPLE FIGURES

HYDRAULIC MACHINES

NSK NEEDLE BEARING

Fig. 80 Two-Stroke Engine

This illustrates the application of a solidneedle roller bearing to the crankshaft,increasing load capacity and facilitating amore compact size.

Fig. 81 Outboard Motor Lower Unit

Fig. 82 Gear Pump

A solid needle roller bearing is commonly applied to high-pressure gear pumps. Since the load is large and problemssuch as edge load may be caused by shaft deflection, crowningshould be applied to the rollers.

Fig. 83 Gear Pump

The comparatively low-pressure gear pump operates satisfactorily witha drawn cup needle roller bearing. It also serves to reduce cost.

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C 42 C 43

EXAMPLE FIGURES NSK NEEDLE BEARING

Fig. 84 Gear Pump

Fig. 85 Axial Piston Pump

Fig. 86 Axial Piston Pump

For high-pressure axial piston pumps, NTH thrust roller bearings,which have a large load capacity, are recommended.Although this example uses a copper alloy bush for the borediameter guide face of the thrust roller bearing, a bush wouldnot be required should the guide face be hardened and groundto HRC58 or more.

Fig. 87 Hydraulic Transmission

This illustrates a hydraulic transmission combining a variabledisplacement axial piston pump and a fixed displacement gearmotor.A drawn cup needle roller bearing is applied to the pivotingportion and the gear motor of the rotating swash plate of theaxial piston pump.

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C 45

NSK NEEDLE BEARING

C 44

EXAMPLE FIGURES

OTHERS

Fig. 88 Magic Hand

The application of a thrust needle rollerbearing to a magic hand or artificial armfacilitates smooth operation.

Fig. 89 Oil Well Equipment (Pump Jack)

Fig. 90 Oil Well Equipment (Pump Jack)

Fig. 91 Valve

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C 46

EXAMPLE FIGURES

Fig. 92 Electric Guitar Tremolo

Fig. 93 Meat Saw for Hamburgers

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C 48 C 49

APPENDICES NSK NEEDLE BEARING

Units

SI

Length Mass Time Temp. Accelera-tion Force Stress Pressure Energy Power

m kg s K, °C m/s2 N Pa Pa J W

cm

m

s

s

g

kgf・s2/m

°C

°C

Gal

m/s2

dyn

kgf

dyn/cm2

kgf/m2

dyn/cm2

kgf/m2

erg

kgf・m

erg/s

kgf・m/s

CGS System

EngineeringUnit System

UnitSystem

Appendix 1 Conversion Table from SI (International Units) System

Comparison of SI, CGS, and Engineering Units

Parameter

Angle

Length

Area

Volume

Time

Frequency

Speed of Rotation

Speed

Acceleration

Mass

Force

Torque or Moment

Stress

Radian

Meter

Square meter

Cubic meter

Second

Hertz

Revolution per second

Meter per second

Meter per second per second

Kilogram

Newton

Newton・meter

Pascal

rad

m

m2

m3

s

Hz

s-1

m/s

m/s2

kg

N

N・m

Pa(N/m2)

DegreeMinuteSecond

MicronAngstrom

AreHectare

LiterDeciliter

MinuteHourDay

Cycle

Revolution per minute

Kilometer per hourKnot

Galg

Ton

Kilogram-forceTon-forceDyne

Kilogram-force meter

Kilogram-force per square centimeterKilogram-force per square milimeter

180/π10 800/π648 000/π

106

1010

10-2

10-4

103

104

1/601/3 6001/86 400

1

60

3 600/1 0003 600/1 852

102

1/9.806 65

10-3

1/9.806 651/(9.806 65 × 103 )105

1/9.806 65

1/(9.806 65 × 104 )1/(9.806 65 × 106 )

°’”

p

Å

aha

l, Ldl, dL

minhd

s-1

rpm

km /hkn

Galg

t

kgftfdyn

kgf・m

kgf /cm2

kgf /mm2

SI Units

Names of Units Symbols Names of Units Symbols

Units other than SI Conversion Factorsfrom SI Units

Conversion Factors from SI UnitsParameter

Pressure

Energy

Work

Viscosity,Viscosity Index

Kinematic Viscosity,Kinematic Viscosity Index

Temperature

Electric Current,Magnetomotive Force

Voltage,Electromotive Force

Magnetic FieldStrength

Magnetic FluxDensity

Electrical Resistance

Pascal(Newton per square meter)

Joule(Newton-meter)

Watt(Joule per second)

Pascal second

Square meter per second

Kelvin, Degree Celsius

Ampere

Volt

Ampere per meter

Tesla

Ohm

Pa(N/m2)

J(N・m)

W(J/s)

Pa・s

m2/s

K, °C

A

V

A/m

T

Ω

Kilogram-force per square meterWater ColumnMercury ColumnTorrBarAtmosphere

ErgCalorie (International)Kilogram-force meterKilowatt hourFrench horse power hour

Kilogram-force meter per secondKilocalorie per hourFrench horse power

Poise

StokesCentistokes

Degree,

Ampere

(Watts per ampere)

Oersted

GaussGamma

(Volts per ampere)

1/9.806 651/(9.806 65 × 103 )760/(1.013 25 × 105 )760/(1.013 25 × 105 )10-5

1/(1.013 25 × 105 )

107

1/4.186 81/9.806 651/(3.6 × 106 )~~ 3.776 72 × 10-7

1/9.806 651/1.163~~ 1/735.498 8

10

104

106

(See Note (1))

1

1

4π/103

104

109

1

kgf/m2

mH2OmmHgTorrbaratm

ergcalIT

kgf・mkW・hPS・h

kgf・m/skcal/hPS

P

StcSt

°C

A

(W/A)

Oe

Gsγ

(V/A)

SI Units

Names of Units Symbols Names of Units Symbols

Units other than SI Conversion Factorsfrom SI Units

Conversion Factors from SI Units (Continued)

Note (1) The conversion from TK intoθ°C is θ = T-273.15 but for a temperature difference, it is dT = dθ. However, dT and dθrepresent temperature differences measured using the Kelvin and Celsius scales respectively.

Remarks The names and symbols in ( ) are equivalent to those directly above them or on their left.Example of conversion 1N = 1/9.806 65kgf

Prefixes Used In SI System

Multiples Prefix Symbols Multiples Prefix Symbols

1018

1015

1012

109

106

103

102

10

EPT

GMk

hda

ExaPetaTera

GigaMegaKiro

HectoDeca

DeciCentiMilli

MicroNanoPico

FemtoAto

10-1

10-2

10-3

10-6

10-9

10-12

10-15

10-18

dcm

p

np

fa

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C 51

NSK NEEDLE BEARING

C 50

APPENDICES

N

9.806619.61329.42039.22749.033

58.84068.64778.45388.26098.066

107.87117.68127.49137.29147.10

156.91166.71176.52186.33196.13

205.94215.75225.55235.36245.17

254.97264.78274.59284.39294.20

304.01313.81323.62

0.10200.20390.30590.40790.5099

0.61180.71380.81580.91771.0197

1.12171.22371.32561.42761.5296

1.63151.73351.83551.93752.0394

2.14142.24342.34532.44732.5493

2.65132.75322.85522.95723.0591

3.16113.26313.3651

12345

6789

10

1112131415

1617181920

2122232425

2627282930

313233

kgf N

333.43343.23353.04362.85372.65

382.46392.27402.07411.88421.69

431.49441.30451.11460.91470.72

480.53490.33500.14509.95519.75

529.56539.37549.17558.98568.79

578.59588.40598.21608.01617.82

627.63637.43647.24

3.46703.56903.67103.77293.8749

3.97694.07894.18084.28284.3848

4.48684.58874.69074.79274.8946

4.99665.09865.20065.30255.4045

5.50655.60845.71045.81245.9144

6.01636.11836.22036.32226.4242

6.52626.62826.7301

3435363738

3940414243

4445464748

4950515253

5455565758

5960616263

646566

kgf N

657.05666.85676.66686.47696.27

706.08715.89725.69735.50745.31

755.11764.92774.73784.53794.34

804.15813.95823.76833.57843.37

853.18862.99872.79882.60892.41

902.21912.02921.83931.63941.44

951.25961.05970.86

6.83216.93417.03607.13807.2400

7.34207.44397.54597.64797.7498

7.85187.95388.05588.15778.2597

8.36178.46368.56568.66768.7696

8.87158.97359.07559.17749.2794

9.38149.48349.58539.68739.7893

9.89129.9932

10.095

6768697071

7273747576

7778798081

8283848586

8788899091

9293949596

979899

kgf kg

0.4540.9071.3611.8142.268

2.7223.1753.6294.0824.536

4.9905.4435.8976.3506.804

7.2577.7118.1658.6189.072

9.5259.979

10.43310.88611.340

11.79312.24712.70113.15413.608

14.06114.51514.969

2.2054.4096.6148.818

11.023

13.22815.43217.63719.84222.046

24.25126.45528.66030.86533.069

35.27437.47939.68341.88844.092

46.29748.50250.70652.91155.116

57.32059.52561.72963.93466.139

68.34370.54872.753

12345

6789

10

1112131415

1617181920

2122232425

2627282930

313233

lb kg

15.42215.87616.32916.78317.237

17.69018.14418.59719.05119.504

19.95820.41220.86521.31921.772

22.22622.68023.13323.58724.040

24.49424.94825.40125.85526.308

26.76227.21627.66928.12328.576

29.03029.48429.937

74.95777.16279.36681.57183.776

85.98088.18590.39092.59494.799

97.00399.208

101.41103.62105.82

108.03110.23112.44114.64116.84

119.05121.25123.46125.66127.87

130.07132.28134.48136.69138.89

141.10143.30145.51

3435363738

3940414243

4445464748

4950515253

5455565758

5960616263

646566

lb kg

30.39130.84431.29831.75132.205

32.65933.11233.56634.01934.473

34.92735.38035.83436.28736.741

37.19537.64838.10238.55539.009

39.46339.91640.37040.82341.277

41.73042.18442.63843.09143.545

43.99844.45244.906

147.71149.91152.12154.32156.53

158.73160.94163.14165.35167.55

169.76171.96174.17176.37178.57

180.78182.98185.19187.39189.60

191.80194.01196.21198.42200.62

202.83205.03207.23209.44211.64

213.85216.05218.26

6768697071

7273747576

7778798081

8283848586

8788899091

9293949596

979899

lb

1 N=0.1019716 kgf

1 kgf=9.80665 N1 kg=2.2046226 lb1 lb=0.45359237 kg

Appendix 2 N-kgf Conversion Table Appendix 3 kg-lb Conversion Table

(Method of using this table) For example, to convert 10N into kgf, read the figure in the rightkgf column adjacent to the 10 in the center column in the 1stblock. This means that 10N is 1.0197kgf. To convert 10kgf into N,read the figure in the left N column of the same row, whichindicates that the answer is 98.066N.

(Method of using this table) For example, to convert 10kg into lb, read the figure in the right lbcolumn adjacent to the 10 in the center column in the 1st block.This means that 10kg is 22.046lb. To convert 10lb into kg, readthe figure in the left kg column of the same row, which indicatesthat the answer is 4.536kg.

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C 53

NSK NEEDLE BEARING

C 52

APPENDICES

C= (F-32)

F=32+ C

-73.3-62.2-51.1-40.0-34.4

-28.9-23.3-17.8-17.2-16.7

-16.1-15.6-15.0-14.4-13.9

-13.3-12.8-12.2-11.7-11.1

-10.6-10.0- 9.4- 8.9- 8.3

- 7.8- 7.2- 6.7- 6.1- 5.6

- 5.0- 4.4- 3.9- 3.3- 2.8

- 2.2- 1.7- 1.1- 0.6

-148.0-112.0- 76.0- 40.0- 22.0

- 4.014.032.033.835.6

37.439.241.042.844.6

46.448.250.051.853.6

55.457.259.060.862.6

64.466.268.069.871.6

73.475.277.078.880.6

82.484.286.087.8

-100- 80- 60- 40- 30

- 20- 10

012

34567

89

101112

1314151617

1819202122

2324252627

28293031

˚F ℃

0.00.61.11.72.2

2.83.33.94.45.0

5.66.16.77.27.8

8.38.99.4

10.010.6

11.111.712.212.813.3

13.914.415.015.616.1

16.717.217.818.318.9

19.420.020.621.1

89.691.493.295.096.8

98.6100.4102.2104.0105.8

107.6109.4111.2113.0114.8

116.6118.4120.2122.0123.8

125.6127.4129.2131.0132.8

134.6136.4138.2140.0141.8

143.6145.4147.2149.0150.8

152.6154.4156.2158.0

3233343536

3738394041

4243444546

4748495051

5253545556

5758596061

6263646566

67686970

˚F ℃

21.722.222.823.323.9

24.425.025.626.126.7

27.227.828.328.929.4

30.030.631.131.732.2

32.833.333.934.435.0

35.636.136.737.237.8

38.338.939.440.040.6

41.141.742.242.8

159.8161.6163.4165.2167.0

168.8170.6172.4174.2176.0

177.8179.6181.4183.2185.0

186.8188.6190.4192.2194.0

195.8197.6199.4201.2203.0

204.8206.6208.4210.2212.0

213.8215.6217.4219.2221.0

222.8224.6226.4228.2

7172737475

7677787980

8182838485

8687888990

9192939495

96979899

100

101102103104105

106107108109

˚F ℃

43.346.148.951.754.4

57.260.065.671.176.7

82.287.893.398.9

104.4

110.0115.6121.1148.9176.7

204232260288316

343371399427454

482510538593649

704760816871

230239248257266

275284302320338

356374392410428

446464482572662

752842932

10221112

12021292138214721562

16521742183220122192

2372255227322912

110115120125130

135140150160170

180190200210220

230240250300350

400450500550600

650700750800850

900950

1 0001 1001 200

1 3001 4001 5001 600

˚F

5―9

9―5

Appendix 4 °C-°F Conversion Table Appendix 5 Viscosity Conversion Table

(Method of using this table) For example, to convert 38°C into °F, read the figure in the right °Fcolumn adjacent to the 38 in the center column in the 2nd block.This means that 38°C is 100.4°F. To convert 38°F into °C, read thefigure in the left °C column of the same row, which indicates thatthe answer is 3.3°C.

KinematicViscositymm2/s

SayboltUniversalSUS (sec)

100˚F 210˚F 50℃ 100℃

No.1 TypeRedwood

R (sec)Engler

E (degree)

SayboltUniversalSUS (sec)

100˚F 210˚F 50℃ 100℃

No.1 TypeRedwood

R (sec)Engler

E (degree)

23456

789

1011

1213141516

1718192021

2223242526

2728293031

323334

32.636.039.142.345.5

48.752.055.458.862.3

65.969.673.477.281.1

85.189.293.397.5

102

106110115119123

128132137141145

150154159

32.836.339.442.645.8

49.052.455.859.262.7

66.470.173.977.781.7

85.789.894.098.2

102

107111115120124

129133138142146

150155160

30.833.335.938.541.1

43.746.349.152.155.1

58.261.464.768.071.5

75.078.682.185.889.5

93.397.1

101105109

112116120124128

132136140

31.233.736.539.141.7

44.347.050.052.956.0

59.162.365.669.172.6

76.179.783.687.491.3

95.198.9

103107111

115119123127131

135139143

1.141.221.311.401.48

1.561.651.751.841.93

2.022.122.222.322.43

2.542.642.762.872.98

3.103.223.343.463.58

3.703.823.954.074.20

4.324.454.57

3536373839

4041424344

4546474849

5055606570

7580859095

100120140160180

200250300

163168172177181

186190195199204

208213218222227

231254277300323

346371394417440

464556649742834

9271 1591 391

164170173178183

187192196201205

210215219224228

233256279302326

349373397420443

467560653747840

9331 1671 400

144148153156160

164168172176180

184188193197201

205225245266286

306326347367387

408490571653734

8161 0201 224

147151155159164

168172176180185

189193197202206

210231252273294

315336357378399

420504588672757

8411 0511 241

4.704.834.965.085.21

5.345.475.595.725.85

5.986.116.246.376.50

6.637.247.908.559.21

9.8910.511.211.812.5

13.215.818.421.123.7

26.332.939.5

Remarks 1mm2/s=1cSt

KinematicViscositymm2/s

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C 55

NSK NEEDLE BEARING

C 54

APPENDICES

inch 0 1

Fraction Decimal mm

01/641/323/641/165/643/327/641/89/645/32

11/643/16

13/647/32

15/641/4

17/649/32

19/645/16

21/6411/3223/64

3/825/6413/3227/64

7/1629/6415/3231/64

1/233/6417/3235/64

9/1637/5419/3239/64

5/841/6421/3243/6411/1645/6423/3247/64

3/449/6425/3251/6413/1653/6427/3255/64

7/857/6429/3259/6415/1661/6431/3263/64

0.0000000.0156250.0312500.0468750.0625000.0781250.0937500.1093750.1250000.1406250.1562500.1718750.1875000.2031250.2187500.2343750.2500000.2656250.2812500.2968750.3125000.3281250.3437500.3593750.3750000.3906250.4062500.4218750.4375000.4531250.4687500.4843750.5000000.5156250.5312500.5468750.5625000.5781250.5937500.6093750.6250000.6406250.6562500.6718750.6875000.7031250.7187500.7343750.7500000.7656250.7812500.7968750.8125000.8281250.8437500.8593750.8750000.8906250.9062500.9218750.9375000.9531250.9687500.984375

0.0000.3970.7941.1911.5881.9842.3812.7783.1753.5723.9694.3664.7625.1595.5565.9536.3506.7477.1447.5417.9388.3348.7319.1289.5259.992

10.31910.71611.11211.50911.90612.30312.70013.09713.49413.89114.28814.68415.08115.47815.87516.27216.66917.06617.46217.85918.25618.65319.05019.44719.84420.24120.63821.03421.43121.82822.22522.62223.01923.41623.81224.20924.60625.003

25.40025.79726.19426.59126.98827.38427.78128.17828.57528.97229.36929.76630.16230.55930.95631.35331.75032.14732.54432.94133.33833.73434.13134.52834.92535.32235.71936.11636.51236.90937.30637.70338.10038.49738.89439.29139.68840.08440.48140.87841.27541.67242.06942.46642.86243.25943.65644.05344.45044.84745.24445.64146.03846.43446.83147.22847.62548.02248.41948.81649.21249.60950.00650.403

50.80051.19751.59451.99152.38852.78453.18153.57853.97554.37254.76955.16655.56255.95956.35656.75357.15057.54757.94458.34158.73859.13459.53159.92860.32560.72261.11961.51661.91262.30962.70663.10363.50063.89764.29464.69165.08865.48465.88166.27866.67567.07267.46967.86668.26268.65969.05669.45369.85070.24770.64471.04171.43871.83472.23172.62873.02573.42273.81974.21674.61275.00975.40675.803

76.20076.59776.99477.39177.78878.18478.58178.97879.37579.77280.16980.56680.96281.35981.75682.15382.55082.94783.34483.74184.13884.53484.93185.32885.72586.12286.51986.91687.31287.70988.10688.50388.90089.29789.69490.09190.48890.88491.28191.67892.07592.47292.86993.26693.66294.05994.45694.85395.25095.64796.04496.44196.83897.23497.63198.02898.42598.82299.21999.616

100.012100.409100.806101.203

101.600101.997102.394102.791103.188103.584103.981104.378104.775105.172105.569105.966106.362106.759107.156107.553107.950108.347108.744109.141109.538109.934110.331110.728111.125111.522111.919112.316112.712113.109113.506113.903114.300114.697115.094115.491115.888116.284116.681117.078117.475117.872118.269118.666119.062119.459119.856120.253120.650121.047121.444121.841122.238122.634123.031123.428123.825124.222124.619125.016125.412125.809126.206126.603

127.000127.397127.794128.191128.588128.984129.381129.778130.175130.572130.969131.366131.762132.159132.556132.953133.350133.747134.144134.541134.938135.334135.731136.128136.525136.922137.319137.716138.112138.509138.906139.303139.700140.097140.494140.891141.288141.684142.081142.478142.875143.272143.669144.066144.462144.859145.256145.653146.050146.447146.844147.241147.638148.034148.431148.828149.225149.622150.019150.416150.812151.209151.606152.003

152.400152.797153.194153.591153.988154.384154.781155.178155.575155.972156.369156.766157.162157.559157.956158.353158.750159.147159.544159.941160.338160.734161.131161.528161.925162.322162.719163.116163.512163.909164.306164.703165.100165.497165.894166.291166.688167.084167.481167.878168.275168.672169.069169.466169.862170.259170.656171.053171.450171.847172.244172.641173.038173.434173.831174.228174.625175.022175.419175.816176.212176.609177.006177.403

2 3 4 5 6 inch 7 8

Fraction Decimal mm

01/641/323/641/165/643/327/641/89/645/32

11/643/16

13/647/32

15/641/4

17/649/32

19/645/16

21/6411/3223/64

3/825/6413/3227/64

7/1629/6415/3231/64

1/233/6417/3235/64

9/1637/5419/3239/64

5/841/6421/3243/6411/1645/6423/3247/64

3/449/6425/3251/6413/1653/6427/3255/64

7/857/6429/3259/6415/1661/6431/3263/64

0.0000000.0156250.0312500.0468750.0625000.0781250.0937500.1093750.1250000.1406250.1562500.1718750.1875000.2031250.2187500.2343750.2500000.2656250.2812500.2968750.3125000.3281250.3437500.3593750.3750000.3906250.4062500.4218750.4375000.4531250.4687500.4843750.5000000.5156250.5312500.5468750.5625000.5781250.5937500.6093750.6250000.6406250.6562500.6718750.6875000.7031250.7187500.7343750.7500000.7656250.7812500.7968750.8125000.8281250.8437500.8593750.8750000.8906250.9062500.9218750.9375000.9531250.9687500.984375

177.800178.197178.594178.991179.388179.784180.181180.578180.975181.372181.769181.166182.562182.959183.356183.753184.150184.547184.944185.341185.738186.134186.531186.928187.325187.722188.119188.516188.912189.309189.706190.103190.500190.897191.294191.691192.088192.484192.881193.278193.675194.072194.469194.866195.262195.659196.056196.453196.850197.247197.644198.041198.438198.834199.231199.628200.025200.422200.819201.216201.612202.009202.406202.803

203.200203.597203.994204.391204.788205.184205.581205.978206.375206.772207.169207.566207.962208.359208.756209.153209.550209.947210.344210.741211.138211.534211.931212.328212.725213.122213.519213.916214.312214.709215.106215.503215.900216.297216.694217.091217.488217.884218.281218.678219.075219.472219.869220.266220.662221.059221.456221.853222.250222.647223.044223.441223.838224.234224.631225.028225.425225.822226.219226.616227.012227.409227.806228.203

228.600228.997229.394229.791230.188230.584230.981231.378231.775232.172232.569232.966233.362233.759234.156234.553234.950235.347235.744236.141236.538236.934237.331237.728238.125238.522238.919239.316239.712240.109240.506240.903241.300241.697242.094242.491242.888243.284243.681244.078244.475244.872245.269245.666246.062246.459246.856247.253247.650248.047248.444248.841249.238249.634250.031250.428250.825251.222251.619252.016252.412252.809253.206253.603

254.000254.397254.794255.191255.588255.984256.381256.778257.175257.572257.969258.366258.762259.159259.556259.953260.350260.747261.144261.541261.938262.334262.731263.128263.525263.922264.319264.716265.112265.509265.906266.303266.700267.097267.494267.891268.288268.684269.081269.478269.875270.272270.669271.066271.462271.859272.256272.653273.050273.447273.844274.241274.638275.034275.431275.828276.225276.622277.019277.416277.812278.209278.606279.003

279.400279.797280.194280.591280.988281.384281.781282.178282.575282.972283.369283.766284.162284.559284.956285.353285.750286.147286.544286.941287.338287.734288.131288.528288.925289.322289.719290.116290.512290.909291.306291.703292.100292.497292.894293.291293.688294.084294.481294.878295.275295.672296.069296.466296.862297.259297.656298.053298.450298.847299.244299.641300.038300.434300.831301.228301.625302.022302.419302.816303.212303.609304.006304.403

304.800305.197305.594305.991306.388306.784307.181307.578307.975308.372308.769309.166309.562309.959310.356310.753311.150311.547311.944312.341312.738313.134313.531313.928314.325314.722315.119315.516315.912316.309316.706317.103317.500317.897318.294318.691319.088319.484319.881320.278320.675321.072321.469321.866322.262322.659323.056323.453323.850324.247324.644325.041325.438325.834326.231326.628327.050327.422327.819328.216328.612329.009329.406329.803

9 10 11 12

1″=25.4mm

Appendix 6 inch-mm Conversion Table

Page 177: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

C 57

NSK NEEDLE BEARING

C 56

APPENDICES

RockwellC Scale

Hardness(1 471N){150kgf}

VickersHardness

Brinell Hardness

Standard Ball TungstenCarbide Ball

Rockwell Hardness

A Scale

Load 588.4N{60kgf}

BraleIndenter

B Scale

Load 980.7N{100kgf}

1.588mmBall(1/16in)

940900865832800

772746720697674

653633613595577

560544528513498

484471458446434

423412402392382

372363354345336

327318310302294

286279272266260

254248243238

230222213204

196188180173166160

―――――

―――――

―――――

―500487475464

451442432421409

400390381371362

353344336327319

311301294286279

271264258253247

243237231226

219212203194

187179171165158152

―――

739722

705688670654634

615595577560543

525512496481469

455443432421409

400390381371362

353344336327319

311301294286279

271264258253247

243237231226

219212203194

187179171165158152

ShoreHardness

85.685.084.583.983.4

82.882.381.881.280.7

80.179.679.078.578.0

77.476.876.375.975.2

74.774.173.673.172.5

72.071.570.970.469.9

69.468.968.467.967.4

66.866.365.865.364.7

64.363.863.362.862.4

62.061.561.060.5

――――

――――――

―――――

―――――

―――――

―――――

―――――

―――――

――

(109.0)(108.5)(108.0)

(107.5)(107.0)(106.0)(105.5)(104.5)

(104.0)(103.0)(102.5)(101.5)(101.0)

100.099.098.597.8

96.795.593.992.3

90.789.587.185.583.581.7

9795929188

8785838180

7876757472

7169686766

6463626058

5756555452

5150494847

4644434241

4140383837

36353534

33323129

282726252424

6867666564

6362616059

5857565554

5352515049

4847464544

4342414039

3837363534

3332313029

2827262524

23222120

(18)(16)(14)(12)

(10)(8)(6)(4)(2)(0)

Appendix 7 Hardness Conversion Table (Reference) Appendix 8 Physical and Mechanical Properties of Materials

Materials

Bearing Steel (hardened)

Martensitic Stainless SteelSUS 440C

Mild (C=0.12 to 0.20%)Steel

Hard (C=0.3 to 0.5%)Steel

Austenitic Stainless SteelSUS 304

Cast Iron

Gray IronFC200

Spheroidalgraphite Iron

FCD400

Aluminum

Zinc

Copper

(Annealed)

Brass

(Machined)

SpecificGravity

7.83

7.68

7.86

7.84

8.03

7.3

7.0

2.69

7.14

8.93

8.5

Coefficientof Linear

Expansion(0°to 100°C)

Hardness(Brinell)

Modulusof LinearElasticity

(MPa){kgf/mm2}

Tensile Strength(MPa)

{kgf/mm2}

Yield Point(MPa)

{kgf/mm2}

Elongation(%)

12.5×10-6

10.1×10-6

11.6×10-6

11.3×10-6

16.3×10-6

10.4×10-6

11.7×10-6

23.7×10-6

31×10-6

16.2×10-6

19.1×10-6

650 to 740

580

100 to 130

160 to 200

150

Less than223

Less than201

15 to 26

30 to 60

50

45

85 to 130

208 000{21 200}

200 000{20 400}

206 000{21 000}

206 000{21 000}

193 000{19 700}

98 100{10 000}

70 600{7 200}

92 200{9 400}

123 000{12 500}

103 000{10 500}

1 570 to 1 960{160 to 200}

1 960{200}

373 to 471{38 to 48}

539 to 686{55 to 70}

588{60}

More than200{20}

More than400{41}

78{8}

147{15}

196{20}

294 to 343{30 to 35}

363 to 539{37 to 55}

1 860{190}

216 to 294{22 to 30}

333 to 451{34 to 46}

245{25}

34{3.5}

69{7}

24 to 36

14 to 26

60

More than12

35

30 to 40

15 to 20

65 to 75

15 to 50

Remarks The hardness of hardened bearing steel and martensitic stainless steel is usually expressed using the Rockwell CScale, but for comparison, it is converted into Brinell hardness.

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C 59

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C 58

APPENDICES

DiameterClassification

(mm)a c d e f g h

a13 c12 d6 e6 f5 f6 g5 g6 h5 h6 h7 h8 h9 h10

Single PlaneMean BoreDeviation(Normal)ddmpover incl

3

6

10

14

18

24

30

40

50

65

80

100

120

140

160

180

200

225

250

280

315

355

400

450

6 0- 8

-270-450

-280-500

-290-560

-300-630

- 310- 700

- 320- 710

- 340- 800

- 360- 820

- 380- 920

- 410- 959

- 460-1 090

- 520-1 150

- 580-1 210

- 660-1 380

- 740-1 460

- 820-1 540

- 920-1 730

-1 050-1 860

-1 200-2 090

-1 350-2 240

-1 500-2 470

-1 650-2 620

- 70-190

- 80-230

- 95-275

-110-320

- 120- 370

- 130- 380

- 140- 440

- 150- 450

- 170- 520

- 180- 530

- 200- 600

- 210- 610

- 230- 630

- 240- 700

- 260- 720

- 280- 740

- 300- 820

- 330- 850

- 360- 930

- 400- 970

- 440-1 070

- 480-1 110

- 30- 38

- 40- 49

- 50- 61

- 65- 78

- 80- 96

-100-119

-120-142

-145-170

-170-199

-190-222

-210-246

-230-270

- 20- 28

-10-15

-13-19

-16-24

-20-29

-25-36

-30-43

-36-51

-43-61

-50-70

-56-79

-62-87

-68-95

- 10- 18

- 13- 22

- 16- 27

- 20- 33

- 25- 41

- 30- 49

- 36- 58

- 43- 68

- 50- 79

- 56- 88

- 62- 98

- 68-108

- 4- 9

- 5-11

- 6-14

- 7-16

- 9-20

-10-23

-12-27

-14-32

-15-35

-17-40

-18-43

-20-47

- 4-12

- 5-14

- 6-17

- 7-20

- 9-25

-10-29

-12-34

-14-39

-15-44

-17-49

-18-54

-20-60

0- 5

0- 8

0-12

0-18

0- 30

0- 48

0- 6

0- 9

0-15

0-22

0- 36

0- 58

0- 8

0-11

0-18

0-27

0- 43

0- 70

0- 9

0-13

0-21

0-33 0

- 520

- 84

0-11

0-16

0-25

0-39

0- 62

0-100

0-13

0-19

0-30

0-46

0- 74

0-120

0-15

0-22

0-35

0-54

0- 87

0-140

0-18

0-25

0-40

0-63

0-100

0-160

0-20

0-29

0-46

0-72

0-115

0-185

0-23

0-32

0-52

0-81

0-130

0-210

0-25

0-36

0-57

0-89

0-140

0-230

0-27

0-40

0-63

0-97

0-155

0-250

- 25- 34

- 32- 43

- 40- 53

- 50- 66

- 60- 79

- 72- 94

- 85-110

-100-129

-110-142

-125-161

-135-175

0- 8

0- 8

0-10

0-12

0-15

0-20

0-25

0-30

0-35

0-40

0-45

10

14

18

24

30

40

50

65

80

100

120

140

160

180

200

225

250

280

315

355

400

450

500

DiameterClassification

(mm)js

js5 js6 over incl

3

6

10

14

18

24

30

40

50

65

80

100

120

140

160

180

200

225

250

280

315

355

400

450

6±2.5

± 3

± 4

±4.5

±5.5

±6.5

±7.5

± 9

±10

±11.5

±12.5

±13.5

± 4

10

14

18

24

30

40

50

65

80

100

120

140

160

180

200

225

250

280

315

355

400

450

500

j

j5 j6

+ 3- 2

+ 6- 2

k

k5 k6

+ 6+ 1

+ 9+ 1

m

m5 m6

+ 9+ 4

+12+ 4

n

n5 n6

+13+ 8

+16+ 8

p

p5 p6

+17+12

+ 20+ 12

r

r6 r7

+ 23+ 15

±4.5 + 4- 2

+ 7- 2

+ 7+ 1

+10+ 1

+12+ 6

+15+ 6

+16+10

+19+10

+21+15

+ 24+ 15

+ 28+ 19

+ 34+ 23

+ 41+ 28

+ 50+ 34

+ 60+ 41

+ 62+ 43

+ 73+ 51

+ 76+ 54

+ 88+ 63

+ 90+ 65

+ 93+ 68

+106+ 77

+109+ 80

+113+ 84

+126+ 94

+130+ 98

+144+108

+150+114

+166+126

+172+132

±5.5 + 5- 3

+ 8- 3

+ 9+ 1

+12+ 1

+15+ 7

+18+ 7

+20+12

+23+12

+26+18

+ 29+ 18

±6.5 + 5- 4

+ 9- 4

+11+ 2

+15+ 2

+17+ 8

+21+ 8

+24+15

+28+15

+31+22

+ 35+ 22

± 8 + 6- 5

+11- 5

+13+ 2

+18+ 2

+20+ 9

+25+ 9

+28+17

+33+17

+37+26

+ 42+ 26

±9.5 + 6- 7

+12- 7

+15+ 2

+21+ 2

+24+11

+30+11

+33+20

+39+20

+45+32

+ 51+ 32

±11 + 6- 9

+13- 9

+18+ 3

+25+ 3

+28+13

+35+13

+38+23

+45+23

+52+37

+ 59+ 37

±12.5 + 7-11

+14-11

+21+ 3

+28+ 3

+33+15

+40+15

+45+27

+52+27

+61+43

+ 68+ 43

±14.5 + 7-13

+16-13

+24+ 4

+33+ 4

+37+17

+46+17

+51+31

+60+31

+70+50

+ 79+ 50

±16 + 7-16 ±16 +27

+ 4+36+ 4

+43+20

+52+20

+57+34

+66+34

+79+56

+ 88+ 56

±18 + 7-18 ±18 +29

+ 4+40+ 4

+46+21

+57+21

+62+37

+73+37

+87+62

+ 98+ 62

±20 + 7-20 ±20 +32

+ 5+45+ 5

+50+23

+63+23

+67+40

+80+40

+95+68

+108+ 68

+ 27+ 15

+ 34+ 19

+ 41+ 23

+ 49+ 28

+ 59+ 34

+ 71+ 41

+ 73+ 43

+ 86+ 51

+ 89+ 54

+103+ 63

+105+ 65

+108+ 68

+123+ 77

+126+ 80

+130+ 84

+146+ 94

+150+ 98

+165+108

+171+114

+189+126

+195+132

for Shaft DiametersAppendix 9 TolerancesUnits: pm

Page 179: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

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NSK NEEDLE BEARING

C 60

APPENDICES

Housing Bore DiametersAppendix 10 Tolerances forUnits: pm

DiameterClassification

(mm)E F G H

E10 E11 F6 F7 F8 G6 G7 H5 H6 H7 H8 H9 H10

Single PlaneMean O. D.Deviation(Normal)dDmpover incl

3

6

10

14

18

24

30

40

50

65

80

100

120

140

160

180

200

225

250

280

315

355

400

450

6 0- 8

+ 68+ 20

+ 83+ 25

+102+ 32

+124+ 40

+150+ 50

+ 95+ 20

+115+ 25

+142+ 32

+170+ 40

+210+ 50

+180+ 60

+250+ 60

+212+ 72

+292+ 72

+245+ 85

+335+ 85

+285+100

+390+100

+320+110

+430+110

+355+125

+485+125

+385+135

+535+135

+ 18+ 10

+ 22+ 13

+ 27+ 16

+ 33+ 20

+ 41+ 25

+ 49+ 30

+ 58+ 36

+ 68+ 43

+ 79+ 50

+ 88+ 56

+ 98+ 62

+108+ 68

+ 22+ 10

+ 28+ 10

+ 35+ 13

+ 43+ 16

+ 53+ 20

+ 64+ 25

+ 76+ 30

+ 90+ 36

+106+ 43

+122+ 50

+137+ 56

+151+ 62

+165+ 68

+12+ 4

+14+ 5

+17+ 6

+20+ 7

+25+ 9

+29+10

+34+12

+39+14

+44+15

+46+17

+54+18

+60+20

+16+ 4

+20+ 5

+24+ 6

+28+ 7

+34+ 9

+40+10

+47+12

+54+14

+61+15

+69+17

+75+18

+83+20

+ 50

+ 60

+ 80

+ 90

+110

+130

+150

+180

+200

+230

+250

+270

+ 80+12

0+18

0+ 30

0+ 48

0

+ 90+15

0+22

0+ 36

0+ 58

0

+110+18

0+27

0+ 43

0+ 70

0

+130+21

0+33

0+ 52

0+ 84

0

+160+25

0+39

0+ 62

0+100

0

+190+30

0+46

0+ 74

0+120

0

+220+35

0+54

0+ 87

0+140

0

+250+40

0+63

0+100

0+160

0

+290+46

0+72

0+115

0+185

0

+320+52

0+81

0+130

0+210

0

+360+57

0+89

0+140

0+230

0

+400+63

0+97

0+155

0+250

0

+ 28+ 13

+ 34+ 16

+ 41+ 20

+ 50+ 25

+ 60+ 30

+ 71+ 36

+ 83+ 43

+ 96+ 50

+108+ 56

+119+ 62

+131+ 68

0- 8

0- 8

0- 9

0-11

0-13

0-15

0-18

(D≦150)

0-25

(D>150)

0-30

0-35

0-40

0-45

10

14

18

24

30

40

50

65

80

100

120

140

160

180

200

225

250

280

315

355

400

450

500

DiameterClassification

(mm)JS

JS6 JS7 over incl

3

6

10

14

18

24

30

40

50

65

80

100

120

140

160

180

200

225

250

280

315

355

400

450

6± 4

±4.5

±5.5

±6.5

± 8

±9.5

±11

±12.5

±14.5

±16

±18

±20

± 6

10

14

18

24

30

40

50

65

80

100

120

140

160

180

200

225

250

280

315

355

400

450

500

J

J6 J7

+ 5- 3 ± 6

K

K6 K7

+ 2- 6

+ 3- 9

M

M6 M7

- 1- 9

0-12

N

N6 N7

- 5-13

- 4-16

P

P6 P7

- 9-17

- 8- 20

R

R6 R7

- 12- 20

± 7 + 5- 4

+ 8- 7

+ 2- 7

+ 5-10

- 3-12

0-15

- 7-16

- 4-19

-12-21

- 9- 24

- 16- 25

- 20- 31

- 24- 37

- 29- 45

- 35- 54

- 37- 56

- 44- 66

- 47- 69

- 56- 81

- 58- 83

- 61- 86

- 68- 97

- 71-100

- 75-104

- 85-117

- 89-121

- 97-133

-103-139

-113-153

-119-159

± 9 + 6- 5

+10- 8

+ 2- 9

+ 6-12

- 4-15

0-18

- 9-20

- 5-23

-15-26

- 11- 29

±10.5 + 8- 5

+12- 9

+ 2-11

+ 6-15

- 4-17

0-21

-11-24

- 7-28

-18-31

- 14- 35

±12.5 +10- 6

+14-11

+ 3-13

+ 7-18

- 4-20

0-25

-12-28

- 8-33

-21-37

- 17- 42

±15 +13- 6

+18-12

+ 4-15

+ 9-21

- 5-24

0-30

-14-33

- 9-39

-26-45

- 21- 51

±17.5 +16- 6

+22-13

+ 4-18

+10-25

- 6-28

0-35

-16-38

-10-45

-30-52

- 24- 59

±20 +18- 7

+26-14

+ 4-21

+12-28

- 8-33

0-40

-20-45

-12-52

-36-61

- 28- 68

±23 +22- 7

+30-16

+ 5-24

+13-33

- 8-37

0-46

-22-51

-14-60

-41-70

- 33- 79

±26 +25- 7

+36-16

+ 5-27

+16-36

- 9-41

0-52

-25-57

-14-66

-47-79

- 36- 88

±28.5 +29- 7

+39-18

+ 7-29

+17-40

-10-46

0-57

-26-62

-16-73

-51-87

- 41- 98

±31.5 +33- 7

+43-20

+ 8-32

+18-45

-10-50

0-63

-27-67

-17-80

-55-95

- 45-108

- 11- 23

- 13- 28

- 16- 34

- 20- 41

- 25- 50

- 30- 60

- 32- 62

- 38- 73

- 41- 76

- 48- 88

- 50- 90

- 53- 93

- 60-106

- 63-109

- 67-113

- 74-126

- 78-130

- 87-144

- 93-150

-103-166

-109-172

Page 180: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

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NSK NEEDLE BEARING

C 62

APPENDICES

Basic Size(mm)

Standard

over incl Tolerances (pm)

IT1

3

6

10

18

30

50

80

120

180

250

315

400

500

630

800

1 000

1 250

1 600

2 000

2 500

3

6

10

18

30

50

80

120

180

250

315

400

500

630

800

1 000

1 250

1 600

2 000

2 500

3 150

0.8

1

1

1.2

1.5

1.5

2

2.5

3.5

4.5

6

7

8

9

10

11

13

15

18

22

26

1.2

1.5

1.5

2

2.5

2.5

3

4

5

7

8

9

10

11

13

15

18

21

25

30

36

2

2.5

2.5

3

4

4

5

6

8

10

12

13

15

16

18

21

24

29

35

41

50

3

4

4

5

6

7

8

10

12

14

16

18

20

22

25

28

33

39

46

55

68

4

5

6

8

9

11

13

15

18

20

23

25

27

32

36

40

47

55

65

78

96

6

8

9

11

13

16

19

22

25

29

32

36

40

44

50

56

66

78

92

110

135

10

12

15

18

21

25

30

35

40

46

52

57

63

70

80

90

105

125

150

175

210

14

18

22

27

33

39

46

54

63

72

81

89

97

110

125

140

165

195

230

280

330

25

30

36

43

52

62

74

87

100

115

130

140

155

175

200

230

260

310

370

440

540

40

48

58

70

84

100

120

140

160

185

210

230

250

280

320

360

420

500

600

700

860

60

75

90

110

130

160

190

220

250

290

320

360

400

440

500

560

660

780

920

1 100

1 350

IT2 IT3 IT4 IT5 IT6 IT7 IT8 IT9 IT10 IT11

Basic Size(mm)

Grades

over inclTolerances (mm)

IT12 IT13 IT14 IT15 IT16 IT17 IT18

3

6

10

18

30

50

80

120

180

250

315

400

500

630

800

1 000

1 250

1 600

2 000

2 500

3

6

10

18

30

50

80

120

180

250

315

400

500

630

800

1 000

1 250

1 600

2 000

2 500

3 150

0.10

0.12

0.15

0.18

0.21

0.25

0.30

0.35

0.40

0.46

0.52

0.57

0.63

0.70

0.80

0.90

1.05

1.25

1.50

1.75

2.10

0.14

0.18

0.22

0.27

0.33

0.39

0.46

0.54

0.63

0.72

0.81

0.89

0.97

1.10

1.25

1.40

1.65

1.95

2.30

2.80

3.30

0.25

0.30

0.36

0.43

0.52

0.62

0.74

0.87

1.00

1.15

1.30

1.40

1.55

1.75

2.00

2.30

2.60

3.10

3.70

4.40

5.40

0.40

0.48

0.58

0.70

0.84

1.00

1.20

1.40

1.60

1.85

2.10

2.30

2.50

2.80

3.20

3.60

4.20

5.00

6.00

7.00

8.60

0.60

0.75

0.90

1.10

1.30

1.60

1.90

2.20

2.50

2.90

3.20

3.60

4.00

4.40

5.00

5.60

6.60

7.80

9.20

11.00

13.50

1.00

1.20

1.50

1.80

2.10

2.50

3.00

3.50

4.00

4.60

5.20

5.70

6.30

7.00

8.00

9.00

10.50

12.50

15.00

17.50

21.00

1.40

1.80

2.20

2.70

3.30

3.90

4.60

5.40

6.30

7.20

8.10

8.90

9.70

11.00

12.50

14.00

16.50

19.50

23.00

28.00

33.00

Remarks 1. Standard tolerance grades IT14 to IT18 shall not be used for basic sizes less than or equal to 1 mm.2. Values for standard tolerance grades IT1 to IT5 for basic sizes over 500 mm are included for experimental use.

Appendix 11 Values of Standard Tolerance Grades IT

Page 181: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

C 65

NSK NEEDLE BEARING

C 64

APPENDICES

Speedn (min-1)

Speed Factor fn

BallBearings

RollerBearings

1011121314

1516171819

2021222324

2526272829

30313233.334

3638404244

4648505560

6570758085

9095

100110120

130140150160170

1.491.451.411.371.34

1.301.281.251.231.21

1.191.171.151.131.12

1.101.091.071.061.05

1.041.021.011.000.993

0.9750.9570.9410.9260.912

0.8980.8860.8740.8460.822

0.8000.7810.7630.7470.732

0.7180.7050.6930.6720.652

0.6350.6200.6060.5930.581

1.441.391.361.331.30

1.271.251.221.201.18

1.171.151.131.121.10

1.091.081.071.051.04

1.031.021.011.000.994

0.9770.9610.9470.9330.920

0.9080.8960.8850.8610.838

0.8180.8000.7840.7690.755

0.7420.7300.7190.6990.681

0.6650.6500.6370.6250.613

Speedn (min-1)

Speed Factor fn

BallBearings

RollerBearings

180190200220240

260280300320340

360380400420440

460480500550600

650700750800850

900950

1 0001 0501 100

1 1501 2001 2501 3001 400

1 5001 6001 7001 8001 900

2 0002 1002 2002 3002 400

2 5002 6002 7002 8002 900

0.5700.5600.5500.5330.518

0.5040.4920.4810.4710.461

0.4520.4440.4370.4300.423

0.4170.4110.4050.3930.382

0.3720.3620.3540.3470.340

0.3330.3270.3220.3170.312

0.3070.3030.2990.2950.288

0.2810.2750.2700.2650.260

0.2550.2510.2470.2440.240

0.2370.2340.2310.2280.226

0.6030.5930.5840.5680.553

0.5400.5280.5170.5070.498

0.4900.4820.4750.4680.461

0.4550.4490.4440.4310.420

0.4100.4010.3930.3850.378

0.3720.3660.3600.3550.350

0.3460.3410.3370.3330.326

0.3190.3130.3070.3020.297

0.2930.2890.2850.2810.277

0.2740.2710.2680.2650.262

Speedn (min-1)

Speed Factor fn

BallBearings

RollerBearings

3 0003 2003 4003 6003 800

4 0004 2004 4004 6004 800

5 0005 2005 4005 6005 800

6 0006 2006 4006 6006 800

7 0007 2007 4007 6007 800

8 0008 5009 0009 500

10 000

11 00012 00013 00014 00015 000

16 00017 00018 00019 00020 000

22 00024 00026 00028 00030 000

32 00034 00036 00038 00040 000

0.2590.2540.2500.2450.242

0.2380.2340.2310.2280.225

0.2220.2200.2170.2150.213

0.2110.2090.2070.2050.203

0.2010.1990.1980.1960.195

0.1930.1900.1860.1830.181

0.1760.1710.1670.1630.160

0.1570.1540.1510.1490.147

0.1430.1390.1360.1330.130

0.1270.1250.1230.1210.119

Ball Bearings fn=(0.03n)-1/3

Roller Bearings fn=(0.03n)-3/10

Appendix 12 Speed Factor fn Appendix 13 Fatigue Life Factor fh and Fatigue Life L・Lh

Ball Bearings L=(C /P)3Lh=500fh

3

Roller Bearings L=(C /P)10/3Lh=500fh

10/3

C/P or fh Ball Bearing Life Roller Bearing Life

L(106 rev)

Lh

(h)L

(106 rev)Lh

(h)

0.700.750.800.850.90

0.951.001.051.101.15

1.201.251.301.351.40

1.451.501.551.601.65

1.701.751.801.851.90

1.952.002.052.102.15

2.202.252.302.352.40

2.452.502.552.602.65

2.702.752.802.852.90

2.953.003.053.103.15

3.203.253.303.353.40

0.340.420.510.610.73

0.861.001.161.331.52

1.731.952.202.462.74

3.053.383.724.104.49

4.915.365.836.336.86

7.418.008.629.269.94

10.611.412.213.013.8

14.715.616.617.618.6

19.720.822.023.124.4

25.727.028.429.831.3

32.834.335.937.639.3

172211256307365

429500579665760

864977

1 1001 2301 370

1 5201 6901 8602 0502 250

2 4602 6802 9203 1703 430

3 7104 0004 3104 6304 970

5 3205 7006 0806 4906 910

7 3507 8108 2908 7909 300

9 84010 40011 00011 60012 200

12 80013 50014 20014 90015 600

16 40017 20018 00018 80019 700

0.300.380.480.580.70

0.841.001.181.371.59

1.842.102.402.723.07

3.453.864.314.795.31

5.866.467.097.778.50

9.2610.110.911.912.8

13.814.916.117.318.5

19.821.222.724.225.8

27.429.130.932.834.8

36.838.941.143.445.8

48.350.853.556.359.1

152192238291352

421500588687797

9181 0501 2001 3601 530

1 7301 9302 1502 4002 650

2 9303 2303 5503 8904 250

4 6305 0405 4705 9306 410

6 9207 4608 0308 6309 250

9 91010 60011 30012 10012 900

13 70014 60015 50016 40017 400

18 40019 50020 60021 70022 900

24 10025 40026 80028 10029 600

C/P or fh Ball Bearing Life Roller Bearing Life

L(106 rev)

Lh

(h)L

(106 rev)Lh

(h)

3.453.503.553.603.65

3.703.753.803.853.90

3.954.004.054.104.15

4.204.254.304.354.40

4.454.504.554.604.65

4.704.754.804.854.90

4.955.005.105.205.30

5.405.505.605.705.80

5.906.006.507.007.50

8.008.509.009.50

10.0

11.012.013.014.015.0

41.142.944.746.748.6

50.752.754.957.159.3

61.664.066.468.971.5

74.176.879.582.385.2

88.191.194.297.3

101

104107111114118

121125133141149

157166176185195

205216275343422

512614729857

1 000

1 3301 7302 2002 7403 380

20 50021 40022 40023 30024 300

25 30026 40027 40028 50029 700

30 80032 00033 20034 50035 700

37 00038 40039 80041 20042 600

44 10045 60047 10048 70050 300

51 90053 60055 30057 00058 800

60 60062 50066 30070 30074 400

78 70083 20087 80092 60097 600

103 000108 000137 000172 000211 000

256 000307 000365 000429 000―

―――――

62.065.168.271.574.9

78.381.985.689.493.4

97.4102106110115

120124129134140

145150156162168

174180187193200

207214228244260

276294312331351

371392513656826

1 0201 2501 5201 8202 150

2 9603 9605 1706 6108 320

31 00032 50034 10035 80037 400

39 20041 00042 80044 70046 700

48 70050 80052 90055 20057 400

59 80062 20064 60067 20069 800

72 50075 20078 00080 90083 900

87 00090 10093 30096 60099 900

103 000107 000114 000122 000130 000

138 000147 000156 000165 000175 000

186 000196 000256 000328 000413 000

512 000627 000758 000908 000―

―――――

Page 182: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

C 67

NSK NEEDLE BEARING

C 66

APPENDICES

BoreDiameter

d

D* 38

B

48 58 68 38~68

r (min)

Dimension Series

Diameter Series 8

0.61

1.52

2.5

34567

89

101215

1720222528

3032354045

5055606570

7580859095

100105110120130

140150160170180

190200220240260

280300320340360

380400420440

2.5345679

111314161719212426323437404244475258657278859095

100110115120125130140150165175190200215225240250270300320350380400420440480500520540

1.41.5

22.32.6

34566667777

10101010101010101012131415151515191919191923232626303034343737374545526060606075757575

――――――――――

889999

12―12―12―121213151718202020202525252525303035354040454550505060606980808080

100100100100

――――――――――――――――1616161616161616182023242727272734343434344040464654546060676767808095

109109109109136136136136

――――――――――――――――2222222222222222232730323636363645454545455454636371718080909090

109109125145145145145180180180180

0.050.050.050.080.080.10.10.150.150.150.20.20.30.30.30.30.30.30.30.30.30.30.30.30.30.30.30.30.60.60.60.611111111.11.11.11.11.11.11.51.51.52222.12.12.12.12.12.12.12.1

D* 39

B

49 59 69 39~69

r (min)

Dimension Series

Diameter Series 9

―45678

1113151719202224283037394245475255626872808590

100105110120125130140145150165180190210220230250260280300320360380420440460480520540560600

―2.32.6

33.5

4567799

10101010131313131315151616161919192323232626263030303437374545455252606060757590909090

106106106118

―――――――101010111113131313171717171720202222222525253030303535354040404550506060606969808080

100100118118118118140140140160

――――――――――――16161818232323232327273030303434344040404646465454546067678080809595

109109109136136160160160160190190190218

――――――――――――2222232330303030303636404040454545545454636363717171809090

109109109125125145145145180180218218218218250250250290

―0.1(1)0.15(1)0.15(1)0.15(1)

0.15(1)0.15(1)0.15(2)0.15(2)0.15(2)

0.2(2)0.30.30.30.30.30.30.30.30.30.30.60.60.60.60.61111111.11.11.11.11.11.11.11.51.5222222.12.12.12.12.133334444

D* 30

B

40 50 60 30~60

r (min)

Dimension Series

Diameter Series 0

――

6789

12141719222426283235424447525558626875809095

100110115125130140145150160170180200210225240260280290310340360400420460480520540560600620650

――

33.5

45679

10111212121314161616181920202123232626263030343437373741454652535660677475829092

104106118121133134135148150157

――――――――――14151616171822222224252627283030353535404045455050505660606969758090

100100109118118140140160160180180180200200212

――――――――――19202121232430303032343536384040464646545460606767677580809595

100109122136136150160160190190218218243243243272272280

――――――――――2527292930324040404345474850545463636371718080909090

100109109125125136145160180180200218218250250290290325325325355355375

――

0.150.150.150.150.20.20.30.30.30.30.30.30.30.30.60.60.60.61111111.11.11.11.11.11.11.11.51.51.5222222.12.12.12.12.12.1334444555556

BoreDiameter

d

D* 70

H

Dimension Series

Diameter Series 0

468

1012

1517202530

3540455055

6065707580

8590

100

1216182022

2628323742

4752606570

7580859095

100105120

45555

55666

66777

77777

779

67777

77888

89

101010

1010101010

101014

0.30.30.30.30.3

0.30.30.30.30.3

0.30.30.30.30.3

0.30.30.30.30.3

0.30.30.6

―――――――――――――――――――――――

90 10 r (min) D* 71

H

Dimension Series

Diameter Series 1

―――2426

2830354247

5260657078

859095

100105

110120135

―――66

66788

8999

10

1111111111

111416

―――99

99

101111

1213141416

1718181919

192225

―――0.30.3

0.30.30.30.60.6

0.60.60.60.60.6

11111

111

――――――――――――――――――――――21

91 11 r (min) D* 72

H

Dimension Series

Diameter Series 2

1620222628

3235404752

6268737890

95100105110115

125135150

66677

889

1010

1213131316

1616161616

182023

899

1111

1212141516

1819202225

2627272728

313538

0.30.30.30.60.6

0.60.60.60.60.6

11111

11111

11.11.1

――――――――――――――21

2121212121

242730

92 12 r (min)

Notes (1) Chamfer dimensions for dimension series 39 only.(2) For dimension series 39, chamfer dimensions are 0.2 mm for bore diameters of 5 and 6 mm and 0.3 mm for bore

diameters of 7 and 8 mm.

Appendix 14 Boundary Dimensions of Radial BearingsUnits: mm

Appendix 15 Boundary Dimensions of Thrust BearingsUnits: mm

*:Outside Diameter

*:Outside Diameter

Page 183: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

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P: 051-3222-1324 F: 051-3222-2599 C: 55RECIFE Av. Conselheiro Aguiar, 2738-6th andar-conj. 604-Boa Viagem Recife-PE, Brazil 51020-020

P: 081-3326-3781 F: 081-3326-0547 C: 55Canada:NSK CANADA INC. www.ca.nsk.comHEAD OFFICE 5585 McAdam Road, Mississauga, Ontario, Canada L4Z 1N4

P: 905-890-0740 F: 905-890-0488 C: 1MONTREAL 2150-32E Avenue, Lachine, Quebec, Canada H8T 3H7

P: 514-633-1220 F: 514-633-8164 C: 1VANCOUVER 3353 Wayburne Drive, Burnaby, British Columbia, Canada V5G 4L4

P: 604-294-1151 F: 604-294-1407 C: 1Mexico:NSK RODAMIENTOS MEXICANA, S.A. DE C.V. www.mx.nsk.comMEXICO CITY Av. Presidente Juarez No.2007 Lote 5, Col. San Jeronimo Tepetlacalco,

Tlalnepantla, Estado de Mexico, Mexico, C.P.54090P: 55-5390-4312 F: 55-5390-8175 C: 52

United States of America:NSK CORPORATION www.us.nsk.comHEAD OFFICE 4200 Goss Road, Ann Arbor, Michigan 48105, U.S.A.

P: 734-913-7500 F: 734-913-7511 C: 1NSK AMERICAN 4200 Goss Road, Ann Arbor, Michigan 48105, U.S.A.TECHNOLOGY CENTER P: 734-913-7500 F: 734-913-7511 C: 1CLARINDA PLANT 1100 N. First Street, Clarinda, lowa 51632, U.S.A.

P: 712-542-5121 F: 712-542-4905 C: 1FRANKLIN PLANT 3450 Bearing Drive, Franklin, Indiana 46131, U.S.A.

P: 317-738-5000 F: 317-738-5050 C: 1LIBERTY PLANT 1112 East Kitchel Road, Liberty, Indiana 47353, U.S.A.

P: 765-458-5000 F: 765-458-7832 C: 1NSK PRECISION AMERICA, INC. www.npa.nsk.comOFFICE/PLANT 3450 Bearing Drive, Franklin, Indiana 46131, U.S.A.

P: 317-738-5000 F: 317-738-5050 C: 1SAN JOSE 780 Montague Expressway, Suite 508, San Jose, California 95131, U.S.A.

P: 408-944-9400 F: 408-944-9405 C: 1NSK STEERING SYSTEMS AMERICA, INC. www.nssa.nsk.comOFFICE/PLANT 110 Shields Drive, Bennington, Vermont 05201, U.S.A.

P: 802-442-5448 F: 802-442-2253 C: 1ANN ARBOR 4200 Goss Road, Ann Arbor, Michigan 48105, U.S.A.

P: 734-913-7500 F: 734-913-7102 C: 1NSK-WARNER U.S.A., INC.TROY 3001 West Big Beaver Road, Suite 701, Troy, Michigan 48084, U.S.A.

P: 248-822-8888 F: 248-822-1111 C: 1NSK LATIN AMERICA, INC. www.la.nsk.comMIAMI 2500 NW 107th Avenue, Suite 300, Miami, Florida 33172, U.S.A.

P: 305-477-0605 F: 305-477-0377 C: 1

P: Phone F: Fax C: Country Code Printed in Japan

Worldwide Sales Offices and Manufacturing Plants

NSK Ltd. has a basic policy not to export any products or technology designated as controlled items by export-related laws. When exporting the products inthis brochure, the laws of the exporting country must be observed. Specifications are subject to change without notice and without any obligation on the partof the manufacturer. Every care has been taken to ensure the accuracy of the data contained in this brochure, but no liability can be accepted for any loss ordamage suffered through errors or omissions. We will gratefully acknowledge any additions or corrections.

Page 184: Needle Roller Bearings - מיסבים · NSK NEEDLE BEARING TECHNICAL INFORMATION Cage & Needle Roller Assemblies Drawn Cup Needle Roller Bearings Solid Needle Roller Bearings Inner

CAT. No. E1419c 2007 E-11 Printed in Japan ©NSK Ltd. 2007