60Case Catalog.pdf ID=IqVGop5QCLNEBN3qO500ND1rBxo999hEqDV2QNc8grM 0b&Act View=1&R...

Rounder…Smoother…Straighter…Quicker Delivery…Lasts 5 Times Longer…

INCLUDESCUSTOM

MACHININGTEMPLATES

Rounder…Smoother…Straighter…Quicker Delivery…Lasts 5 Times Longer…

Genuine 60 Case* LinearRace* ShaftingGenuine 60 Case* LinearRace* Shafting

Catalog No. 0200-98A

ALL SHAFTINGIS NOT ALIKE

While Shafts may appear the same, there are

significant performance differences due to the

manufacturer’s selected standards, and the

manufacturing used to achieve them.

The linear inner race demands the highest

levels of material cleanliness, surface topog-

raphy, surface hardening, diameter, taper and

roundness, surface finish and straightness to

provide optimum performance, minimal main-

tenance and long life.

Unlike common shafting, Thomson 60 Case

LinearRace* shafting is manufactured to the

highest quality standards. Our techniques are

continuously upgraded with proprietary know-

how gained from over 53 years of linear bear-

ing design and manufacture. Using 60 Case

LinearRace shafting with Thomson Ball Bush-

ing* bearings ensures optimal bearing perfor-

mance and travel life.

Thomson 60 Case LinearRaceshafting Benefits:

• Longer Life

• Optimum Performance

• Greater Accuracy

• Manufactured in an

ISO 9002 registered facility

1. 60 Case UltraRace* LinearRace* shaftingFor the ultimate in performance. Premier, state-of-the-artLinear Bearing Race featuring high hardness, cylindricityand diametrical tolerances at one-half current industrystandards, and surface finishes designed for maximumbearing performance and life. UltraRace* is so different,that a new parameter of surface bearing area, tp-, is usedto describe the feature and quality standard. Used when theultimate linear inner race is required.

2. 60 Case LinearRace* shaftingAn upgrade of the existing high performance LinearRaceshafting with improved surface finish (4 to 8Ra) and tighterdemonstrated dimensional conformance. Intended for useas the inner race of a linear Ball Bushing bearing.

Thomson 60 Case LinearRace shaftingis Available in Two Distinct Product Categories:

2

The specifications and data in this publication are believed to be accurate and reliable. However, it is the responsibility of the product user to determine the suitability of Thomson productsfor a specific application. While defective products will be replaced without charge if promplty returned, no liability is assumed beyond such replacement.

3

Materials ..............................................................................................................................4

Roundness ..........................................................................................................................5

Cylindricity ..........................................................................................................................6

Straightness ........................................................................................................................7

Surface Finish .....................................................................................................................8

Hardness .............................................................................................................................9

Corrosion Resistance .......................................................................................................10

Special Machining ............................................................................................................11

Specifications ...................................................................................................................17

LinearRace* shafting Par t Numbers .........................................................................18–19

Solid Steel LinearRace Shafting ......................................................................................20

Stainless Steel LinearRace Shafting ...............................................................................20

Tubular LinearRace Shafting ...........................................................................................20

Metric LinearRace Shafting .............................................................................................21

Predrilled LinearRace Shafting .......................................................................................21

Preplated Chr ome LinearRace ........................................................................................22

Ball Gr oove LinearRace Shafting ....................................................................................22

QUICK* Shaft ....................................................................................................................22

Random Length Shafting ...........................................................................................23–24

Precision Machining ...................................................................................................25-26

Shaft Rail Assemblies & Suppor ts ............................................................................27–36

Deflection ..........................................................................................................................37

Templates, Custom Machining ..................................................................................38-55

Index ..................................................................................................................................56

TABLE OFCONTENTS

* Trademark of Thomson Industries, Inc. THOMSON is registered in the US Patent and Trademark Office and in other countries.© 1998 Thomson Industries, Inc.

A D V A N T A G E

N U M B E R 1

M A T E R I A L S

What advantages inmaterials dif ferentiate60 Case* LinearRace shafting?Chemistr yThomson 60 Case LinearRace shaftingproducts are available in a number of proprietarysteels. Our most popular LinearRace shaftingproducts are manufactured from high carbon,bearing quality formulations to assure superiorwear, toughness and consistency. The chemi-cal properties of the steel are customized toprovide consistent, homogenous microstruc-ture and proper response to thermal processing.This assures you of receiving consistentproduct with optimum surface characteristicsfor bearing applications, where rolling contactfatigue and bending fatigue resistance arerequired. When extraordinary corrosion

resistance is required, 60 Case LinearRaceshafting is available in 440C, 440EH (extrahard), and 300 series stainless steels. Varioustypes of plating are available for coating highcarbon steel products (See Advantage Num-ber 7 on page 10 for more information oncorrosion resistance.)

CleanlinessCritical bearing load applications require“clean” steel to minimize rolling contactfatigue initiation sites in the race. Thomsonuses only steels that pass exacting require-ments for cleanliness from “non metallicinclusions” (initiation sites), which can shortenbearing life.

Machinability60 Case shafting is machinable with ceramicand carbide tools. The material may also be

selectively annealed by induction or flamemethods. Thomson offers a completerange of custom machining services.(See Advantage Number 8 on page 11 formore information on special machining.)

60 Case BearingQuality Steel Means:

• Superior Reliability

• Longer T ravel Life

• Consistent Machinability

• Incr eased UltimateTensile Str ength

Figure 1: Thomson usesonly steels that pass exactingrequirements for cleanlinessfrom “non metallic inclusions”(initiation sites), which canshorten bearing life.

4


A D V A N T A G E

N U M B E R 2

R O U N D N E S S

Shaft Roundness is vital for linear race

applications or in applications such as

spindles and guide rods where accuracy,

life or precision is paramount. Figure 2

illustrates that all shafting is not alike. Shafts

that look round can be deceiving to the eye

and can be anything but round when properly

evaluated, using precision tracing techniques

(noted below). Microscopically out-of-round

shafts can cause unequal bearing ball loads

resulting in a significant reduction of bearing

performance and life. To ensure that you are

getting a quality product and unequalled

roundness, always look for the Thomson “T”

on the end of the shaft. Always specify

60 Case* LinearRace* shafting to protect

your Ball Bushing* bearing warranty.

Superior Roundness Provides:

• Unifor m Distributionof Bearing Loads

• Maximized Bearing Life

• Longer T ravel Life

• Impr oved PositionalAccuracy

Figure 2: These two graphs taken from a roundness trace display the major roundnessdifference between Thomson 60 Case LinearRace shafting products and non-conforming shafting.

Non-Conforming Shafting60 Case LinearRace shafting

5

100 µinch


A D V A N T A G E

N U M B E R 3

C Y L I N D R I C I T Y

Cylindricity is a measure of the degree ofconformance of the outside surface (diameteralong the length of the race) to a true cylinder.True conformance (high cylindricity) ensuresthat the benefits of roundness, diameter andstraightness are present over the LinearRaceshaft length, or working surface, and not justin a particular location. This ensures uniformshaft accuracy and load capacity in the workingarea of the bearing. Taper is a componentof cylindricity. Taper, concavity and convexityare controlled to fractions of the diametrialtolerance.

High Cylindricity Ensures:

• Uniform Distribution ofBearing Loads

• Maximized Bearing Life

• Increased Travel Life

• Increased Load Capacity

Outer Race

High Load

Low Load

Clearance

Outer Race

Figure 3: In linear bearing applications, taper found in non-conforming shafting can cause one portion of the linearbearing to be loaded higher than the other. This can cause dramatic reduction in travel life or load capacity.As taper increases balls go in and out of preload causing premature wear and reduction in travel life.

Taper

6


A D V A N T A G E

N U M B E R 4

S T R A I G H T N E S S

Straightness is the most vital parameter to

positioning accuracy for Ball Bushing* bearing

systems. For example, in precision machine

tool applications, shaft straightness is

essential to ensure proper positioning of

cutting tools, gauges, and material handling

mechanisms. 60 Case* LinearRace* shafting,

with its exacting straightness specifications, is

the optimum product for these and other

precision positioning applications. Thomson

60 Case LinearRace shafting straightness

specifications (as defined below) are one-half

the value of most competitive offerings.

Exacting StraightnessMeans:

• Easier Installation

• More Precise and Accurate Performance

• Longer Life

A0.2L 0.2L

L

B

Figure 4: 60 Case LinearRace shafting is inspected to ensure that it meets the highest quality standards. Standardstraightness for all 60 Case LinearRace shafting is .001 inch per foot (25 µm/300mm) cumulative .002 inch (50 µm) TIR,with special straightness of .0005 inch per foot (12 µm/300mm) cumulative .001 inch (25 µm) TIR available.

7


A D V A N T A G E

N U M B E R 5

SURFACE F IN ISH

Surface finish is the key factor affecting travellife, load levels, frictional resistance, andsmoothness of travel. For most applications,60 Case* LinearRace* shafting will meet yourbearing performance requirements. However,when you require the ultimate in performance,you should specify 60 Case UltraRace*shafting.

Thomson has long recognized that the tradi-tional measurement of “Ra,” or peak-to-valleyheights, is not a true indicator of an optimumbearing surface (See Figure 5 below). While alower “Ra” value is considered a “better”bearing surface in a general sense, Thomsonproprietary processes are designed to

produce a bearing surface that is “especiallyfriendly” for critical applications. 60 CaseUltraRace presents an extraordinarily smoothbearing surface over approximately 90 to95% of its area. This yields travel life that is200% to 300% better than standard 60 CaseLinearRace shafting and several hundred per-cent superior to standard commercial shafting.

UltraRace shafting comes with a guaranteed“Ra” of 2 microinch (0,05 µm) max., and abearing surface area of 92%, at a meandepth of 8 µ-inch (0,2 µm) below the surface.

When you can’t afford a shafting failure, youshould specify 60 Case UltraRace.

Ultimate Surface FinishProvides:

• Longest Travel Life

• Highest Load Capacity

• Maximum Cleanliness

Figure 5: 60 Case* UltraRace* shafting presents an extraordinary smooth bearing surface over 90-95% of its area. This yields travel life thatis 200-300% better than standard 60 Case LinearRace shafting and several hundred percent superior to standard commercial shafting.

Other Typical Shafting60 Case UltraRace

8


A D V A N T A G E

N U M B E R 6

H A R D N E S S

60 Case LinearRace* shaft surface hardnessprovides resistance to deformation, whetherit be from extreme point contact loading frombearing balls, line contact from rollers, or areacontact from sleeve bearings. Hardness alsoprovides resistance to wear, maintainingcritical internal bearing fitup dimensions.

60 Case*-hardened LinearRace shafting alsoprovides a significant increase in bending androtational fatigue resistance. This fact hasbeen known in the automotive industry foryears and is applied to the manufacturer ofshafts and axles for cars and trucks.

In addition to 60 Case LinearRace shaftingand UltraRace* shafting products, Thomsonhas pioneered the introduction of a newstainless steel designated Thomsalloy* 440EHwith minimum hardness of HRC 60. Thus it isno longer necessary to derate stainless steellinear races. Thomsalloy is excellent for highloads and critical applications that require asuperior corrosion resistance.

Hardness Benefit Summary:

• Greater Resistanceto Wear

• Increased Load Capacity

• Improved Strength

100%

50%

060 50 40 30 20

Standard 60 Case LinearRace shafting and Thomsalloy 440EH Stainless Steel Stainless Steel (standard competitive offerings)

Lo

ad C

apac

ity

Hardness (HRC)

100% improvementin load capacity

withThomson 60 Case

Figure 6: Graphically illustrates the derating of load capacity due strictly to less than HRC 60 surface hardness (to be avoided in bearing applications).

Hardness HRC

9


A D V A N T A G E

N U M B E R 7

CORROSION RESISTANCE

Thomson offers a variety of corrosion

resistant products to meet the needs of

specific corrosive environments. Among

these are standard 440C, new Thomsalloy*

440EH (extra hard), and 300 series stainless

steels. The last is new for Thomson and is

suitable for severe corrosive environments,

nonmagnetic applications, or light loads.

Various types of plating––both commercial

and proprietary––are also available for use

with 60 Case* high carbon steels. Among

these are chrome plate, thin dense chrome

plate, nickel plate (electroless, electrolytic,

Teflon® impregnated, bright) and black oxide,

to name a few.

Corrosion ResistanceBenefit Summary:

• Enhanced Applications

• Longer Life

• Process Ensures UniformBearing Surface

Thin DenseChrome Plating

Base Material

Figure 7: Cross sectional view of plated 60 Case LinearRace* shafting. Plating is uniformly held to 2 microns overthe length and circumference of the shaft to ensure optimum hardness, performance and corrosion resistance.

Photomicrograph

10

The specifications and data in this publication are believed to be accurate and reliable. However, it is the responsibility of the product user to determine the suitability of Thomson productsfor a specific application. While defective products will be replaced without charge if promplty returned, no liability is assumed beyond such replacement.Teflon® is a registered trademark of E.I. du Pont de Nemors and Company.

A D V A N T A G E

N U M B E R 8

SPECIAL MACHINING

Thomson does it all: mounting holes, journals,

keyways, butt joints, grooves, flats, etc.

State-of-the-art custom machining, to your

exacting specifications, has been a mainstay

at Thomson for 53 years. We provide you

with quick delivery service, just-in-time

support, and the fastest possible response––

at prices that are highly competitive.

Over 53 Years ExperienceEnsures:

• Accurate Machining toSpecification

• Fast Turnaround

• Ordering Ease

• Single Source Availability

Figure 8: Thomson provides complete, high precisionmachining services to meet your exacting specifications.

11


A D V A N T A G E

N U M B E R 9

V A R I E T Y

Thomson 60 Case* LinearRace* shafting canbe mounted on, or delivered pre-assembled,in three configurations: type LSR low profilesupport rails, type SR standard support rails,and type XSR extra rigid support rails. Thomson shaft supports are available forend supported, intermittently supported,and continuously supported applications.

The combination of support types, coupledwith our wide choice of materials, platings,finishes, and special machining options,provides you with the most comprehensiveset of design choices available. So no matter

what your requirements are, there’s a Thomson 60 Case LinearRace shaftingsolution immediately available.

60 Case LinearRace shafting Variety Means:

• Hundreds of ProductsImmediately Available forQuick Design and Prototyping

• Greater Design Optionsand Flexibility

• Lower Overall DesignCost

Figure 9: Thomson 60 Case pre-assembled shaft rail assemblies save time,increase design flexibility, and lower overall design time and cost.

12


A D V A N T A G E

N U M B E R 1 0

PRODUCT INNOVATION

Thomson Industries manufactures the world’smost complete linear motion product line.One reason for this is our on-going commit-ment to research and new product develop-ment. Our new Smart Rail* system representsthis commitment.

Smart Rail consists of a LinearRace shaftingand support with bolt-down-from-the-top railassembly installation. The mounting holespacing is interchangable with correspondingsize ProfileRail* systems. This gives designersa lower cost, easier-to-install rail system forprecise linear motion when used with theThomson Super Smart Ball Bushing* bearing.

Product Innovation Means:

• Continuous Product Per-formance Improvements

• Guaranteed ReliabilityThrough Rigorous Development and Testing

• On-Going Design SupportFrom the Leaders in Linear Motion Technology

Figure 10: The newpre-assembled ThomsonSmart Rail* system offersdesigners a lower cost,easier-to-install out-of-the-boxrail system for precise linearmotion.

13


A D V A N T A G E

N U M B E R 1 1

SUPERIOR PERFORMANCE

Thomson 60 Case* LinearRace* shafting is

the preferred inner race for optimum perfor-

mance of all Thomson Ball Bushing* bearings.

The combination of 60 Case LinearRace

shafting with Thomson Super Smart Ball

Bushing* bearings, for example, results in

6 times the load or 216 times the life, as

well as 5 times the LinearRace shaft life,

of conventional linear bearings.

For designers, this can mean the use of

smaller components and power devices.

For plant personnel, this can mean longer

machine life and less down time. For

purchasing managers, this means lower

overall material cost.

Superior Performance Means:

• Use of Smaller Components

• Longer Machine Life/Less Downtime

• Lower OverallMaterial Cost

Figure 11: The combination of Thomson Super Smart Ball Bushing* bearings with 60 Case* LinearRace* shafting results in the highestperformance possible today––6 times the load or 216 times the life, and 5 times the shaft life compared to conventional linear bearings.

14


A D V A N T A G E

N U M B E R 1 2

CUSTOMER VALUE

Thomson 60 Case* provides the best value in

terms of product quality, responsiveness, and

immediate availability and technical support.

Quote response time is less than 24 hours!

Shipments of standard product can be made

on the day ordered; or for just in time delivery.

Whether you need solid, tubular, stainless or

plated varieties, 60 Case LinearRace* shafting

is available from over 1800 distributor locations

worldwide. If it’s in the catalog, it’s on the

shelf at Thomson.

For immediate information call us at:

1-800-55-4-THOMSON(1-800-554-8466)

or try our LinearFax* data service andspecify:

LinearFax No. 10172or visit us on the Internet:

http://www.thomsonindustries.com

Or write to us at:

Thomson Industries2 Channel DrivePort Washington, NY 11050

Genuine 60 CaseLinearRace Shafting Provides:• Over 53 Years of Experience• Best Overall Value• Immediate Availability

• Wide Variety of Platings• State-of-the-Art Materials• Tubular• Stainless Steel• New Thomsalloy 440EH 60

Case Stainless Steel• Pre-engineered,

Pre-assembled, Ready-to-Install Shaft Rail Assembliesand Smart Rail*

• Ready-to-ship standardsizes and shapes. Lengthsfrom 2 inches to 17 feet indiameters from 1/8( to 4(,and 5 mm to 80 mm

15


16

60 Case* LinearRace* shafting for Ball Bushing* andRoundway* bearings and Other Applications

The shaft on which Ball Bushing* and Roundway* bearingsoperate acts as the inner bearing race. To assure long servicefor all but lightly loaded applications, the shaft should be hard-ened to Rockwell 60C minimum to an adequate depth. Toprovide smooth operation and the required precision, thesurface should be smooth, round and straight. Thomsonhardened and ground 60 Case* LinearRace* shafts are manu-factured for this specific purpose. This material is of extremelyhigh quality and fills all requirements. It is carried in stock forimmediate shipment and is supplied cut to the required lengthwith or without special machining.

If you prefer to make your own shafts, be careful to obtainthe proper hardness and straightness and not to exceed themaximum permissible diameter. Because of the tolerance on thebore diameter of Ball Bushing bearings, the shaft diametershould always be smaller than the nominal dimension. Forexample, the bore diameter of the 1/2( shaft precision seriesA Ball Bushing bearing (A81420) is .5000( + .0000( – .0005(.Since the bore can go as small as .4995( and an operating clear-ance of .0005( is generally recommended, the shaft diametershould not exceed .4990(. Tolerances for the various sizes andtypes of Ball Bushing bearings as well as recommended shaftdiameters are in the Advanced Linear Motion Technology Guide.

Where no looseness or play is permissible, adjustablediameter Ball Bushing bearings are used. If they are not used,line-to-line fits can be otained by selectively fitting shafts ofvarying diameters within the bearing bore tolerance to the BallBushing bearings, after they have been finally installed in thehousing. This is important to eliminate misalignment orchanges in I.D. due to press fitting. If the shaft cannot rotatefreely with a light finger pressure, an interference fit exists. Theshaft should then be removed and a smaller shaft substituted.

The required surface hardness of shafting depends onthe load which the bearing must support. Data on this shouldbe obtained from the Advanced Linear Motion TechnologyGuide. If too soft a shaft is used for a given load, the balls willcold work a race or ball conforming groove along the workinglength of the shaft. Grooves so formed will increase theloosenss of the fit. Where looseness can be tolerated anda soft shaft is used, periodically rotate the shaft or bearingslightly to obtain a new working surface and eliminate thelooseness. This operation should only be done with all loadremoved from the bearing.

60 Case shafts––other applications.In addition to their use as LinearRace shafts for Ball Bushingand Roundway bearings, 60 Case shafts are also used formany other industrial applications, such as guide rods, rolls,piston rods, spindles and mandrels. All sizes and types of60 Case shafts are included in our engineering specificationson pages 18 through 24.

This is a handy reference for Ball Bushing and Roundwaybearing users who also require 60 Case shafts for other uses.Note the availability of in-between sizes, metric sizes and othertolerance classes.

60 Case shaft is available in bearing-quality, highcarbon alloy and in 440C stainless steel. For engineeringspecifications see pages 18 through 24. Quotations onshafts with special machining will be made promptlyupon receipt of a detailed sketch and informationconcerning the quantity required. If additional informationis required contact your local representative or phoneor write factory direct.


✯ ✯ ✯

17

AdvantagesCost Reduction: The basic material from which 60Case* shafts or LinearRace* shafting are made is fabricatedin mill quantities on our highly specialized productionequipment. Both heat treating and grinding areperformed on continuous, high speed, through-feedequipment. This gives you substantial savings.

Wear Resistance: 60 Case LinearRace shafting has anextremely smooth, very hard surface. The hardness isRockwell 60 to 65C, which will give long life with reducedmaintenance. Also, the extreme surface hardness pro-tects the round ways from nicks, scratches or abrasion.

Increased Machine Life: 60 Case LinearRace shaftinghas a carefully ground finish of 8 Ra or better…a super-smooth bearing surface that reduces friction and wear.

Skilled Special Machining: 60 Case LinearRace shaftusers often need tapped holes or special-machiningalong the length or on the ends of the shafts. We can doit for you. Our skilled machinists insure high quality, lowcost work. Prompt quotations are made upon receipt ofa print or sketch.

Immediate Delivery: Standard sizes of 60 Case Lin-earRace shafting are carried in stock for promptshipment. This fast service helps users who have rushjobs or emergency requirements.

Customer Stocking: Some 60 Case LinearRace shaftusers often purchase a stock of random length 60 Casematerial in frequently used diameters. This offers economiesand provides instant availability for rush jobs. An abra-sive type cut-off machine, suitable for cutting hardenedshafting, will be needed.

Avoid Divided Responsibility: The successfulprocessing of long, heat-treated parts involvesnumerous separate functions. In nearly all plants theseare done by separate departments or sub-contractors.Warpage from conventional methods affects the properoperation of every department or sub-contractor. It isvery difficult to isolate and eliminate the cause of badresults. The trouble may be anywhere from the steel millto the inspection department. Required is a complete,integrated facility, coordinated and designed particularlyor one purpose, to successfully manufacture a materialof this type at a reasonable cost. That’s what we offeryou. Our guaranteed high quality, economy and deliveryare known factors, and the one responsibility is ours.

SpecificationsDiameter: Classes L, S, XL, N, PD, D, M and G 60 Casehardened and ground LinearRace shafting, guaranteed tobe within required diameter tolerances, are listed on pages17 through 22.

Hardness: 60 Case LinearRace shafting of high carbon alloyis case hardened to HRC 60 minimum. Our 440C StainlessSteel 60 Case LinearRace shafting is hardened to HRC 50-55New Thomsalloy* 440EH is hardened to HRC 60 minimum.Tubular 60 Case LinearRace shafting is hardened to HRC 58-63.Depth of case is listed in the tables on pages 18 through 22.

Surface Finish: 60 Case LinearRace shafting has a surfacefinish of 8 Ra or better except on surfaces with machining oradjacent to annealed areas.

Straightness: 60 Case LinearRace shafting is very straight,within .001 per foot cummulative (.002 TIR). Even straighterparts can be supplied at a slight extra charge.

Length Tolerance: 60 Case LinearRace shafting is cut tothe required length within plus or minus 1/32( for shafts up to2( diameter (±1/16( for shafts 2( dia. and over). Closer lengthtolerances can be maintained.

Chamfered Ends: Ends are chamfered about1/16( x 45º. Precision chamfers can also be done.

Special Alloys: Many times special alloys are specifiedwhen not needed. In most applications, 60 Case LinearRaceshafting will prove entirely adequate.

Stainless Steel: 60 Case LinearRace shafting is alsoavailable in 440C Stainless Steel. See page 18 and 20.

Special Machining: Complete facilities are available forspecial machine work. When special machine work is required,send a sketch or print with your request for quotation.

Maximum Lengths: Maximum lengths are shown on pages17 through 23. Shafts may be joined for longer lengths.

Random Lengths: (Shafts 3/8( diameter and larger). Theselengths are mill cut to 14*/15* for Classes L, S, D, N and M.However, when specified on order, longer lengths (16*/17*)are available in Class L only in diameters 3/4(, 1(, 11/4(, 11/2(,2(, 21/2(, 3( and 4(.

Several inches on one or both ends may not be withindiameter tolerance, hence the designation “random lengths.”The set-up charge is waived if the order indicates random length.

Standard Lengths: Class L high carbon alloy steel 60 CaseQUICK* shafts in 1/4(, 3/8(, 1/2(, 5/8(, 3/4(, 1(, 11/4(and 11/2( diameters are immediately available from localstocking distributors in lengths from 6 inches through72 inches. Cutting instructions are included. See page 22.

Roundness: 60 Case LinearRace shaft roundness is within.000080( (Class L, S, D, M) and within .000050( (Class N).

Taper: 60 Case LinearRace shafting maximum taper is .0001(over the entire length of the LinearRace shaft.


Part Number Part Number Part Number Part Number Part Number

60 CaseSolid

LinearRaceshafting

60 CaseLinearRace

shaftingDiameterClass L

Max.Length

in.

StainlessSteel

60 caseLinearRace

shafting

Max.Length

in.

ChromePlated

60 CaseLinearRace

shafting

Max.Length

in.

60 CaseTubular Lite

60 CaseLinearRace

shafting

Max.Length

in.

Chrome PlatedTubular Lite

60 CaseLinearRace

shafting

Max.Length

in.

LRL-4 .2495/.2490 96 LRL-4-SS 60 LRL-4-CP 92LRL-6 .3745/.3740 180 LRL-6-SS 180 LRL-6-CP 166LRL-8 .4995/.4990 180 LRL-8-SS 180 LRL-8-CP 168LRL-10 .6245/.6240 180 LRL-10-SS 180 LRL-10-CP 178LRL-12 .7495/.7490 204 LRL-12-SS 180 LRL-12-CP 178 LRL-12-TU 180 LRL-12-TU-CP 178LRL-16 .9995/.9990 204 LRL-16-SS 180 LRL-16-CP 178 LRL-16-TU 180 LRL-16-TU-CP 178LRL-20 1.2495/1.2490 204 LRL-20-SS 180 LRL-20-CP 178LRL-24 1.4994/1.4989 204 LRL-24-SS 180 LRL-24-CP 178 LRL-24-TU 180 LRL-24-TU-CP 178LRL-32 1.9994/1.9987 204 LRL-32-SS 180 LRL-32-CP 178 LRL-32-TU 180 LRL-32-TU-CP 178

Thomson 60 Case* LinearRace* shafting Part NumberDescription and Specifications for End Supported Applications

TypeLR

ClassSL

D

Description60 Case LinearRace shafting

DescriptionFor use with A type Ball Bushing* bearingsFor use with XA, Open and Adjustable BallBushing bearings and Pillow Blocks as wellas Super Ball Bushing* bearings and SuperSmart Ball Bushing* bearingsFor use with Die Set Ball Bushing bearings

Nom.Size Dia. in.

4 .2506 .3758 .500

10 .62512 .750

Nom.Size Dia. in.16 1.00020 1.25024 1.50032 2.000

Option–

SSTUCP

DescriptionCarbon Steel440C Stainless SteelTubular LitePreplate Chrome

LRS-16-SS

60 Case LinearRace shafting Support Blocks for End Supported Applications

TypeASBSBFSB

DescriptionLow Profile 60 Case LinearRace Shaft End Support BlockStandard 60 Case LinearRace Shaft End Support BlockFlanged 60 Case LinearRace Shaft End Support Block

ASB-16

Part Number Part Number

60 CaseSolid

LinearRaceshafting

60 CaseLinearRace

shaftingDiameterClass S

Max.Length

in.

StainlessSteel

LinearRaceshafting

Max.Length

in.

LRS-4 .2490/.2485 96 LRS-4-SS 168LRS-6 .3740/.3735 168 LRS-6-SS 168LRS-8 .4990/.4985 168 LRS-8-SS 168LRS-10 .6240/.6235 180 LRS-10-SS 168LRS-12 .7490/.7485 180 LRS-12-SS 168LRS-16 .9990/.9985 180 LRS-16-SS 168

60 Case LinearRace shafting Class S Table 2

Part Number

60 CaseSolid

LinearRaceshafting

60 CaseLinearRace

shaftingDiameterClass D

Max.Length

in.

LRD-16 1.0003/1.0000 180LRD-20 1.2503/1.2500 180LRD-24 1.5003/1.5000 180LRD-32 2.0003/2.0000 180

60 Case LinearRace shafting Class D Table 4

Nom.SizeDia. (in.)

4 .2506 .3758 .500

Nom.SizeDia. (in.)10 .62512 .75016 1.000

Nom.SizeDia. (in.)20 1.25024 1.50032 2.000

LRL-40 2.4993/2.4985 204 LRL-40-SS 180 LRL-40-CP 178 LRL-40-TU 180 LRL-40-TU-CP 178

LRL-64 3.9988/3.9976 216 – – LRL-64-CPLRL-48 2.9992/2.9983 204 – – LRL-48-CP 178 LRL-48-TU 180 LRL-48-TU-CP 178

178 LRL-64-TU 180 LRL-64-TU-CP 178

60 Case LinearRace shafting Class L Table 1

Part Number Part Number

60 CaseSolid

LinearRaceshafting

60 CaseLinearRace

shaftingDiameterClass S

Max.Length

in.

StainlessSteel

LinearRaceshafting

Max.Length

in.

LRS-48 2.9983/2.9974 168 – –LRS-64 3.9976/3.9964 180 – –

LRS-40 2.4985/2.4977 180 LRS-40-SS 168

LRS-20 1.2490/1.2485 180 LRS-20-SS 168LRS-24 1.4989/1.4984 180 LRS-24-SS 168LRS-32 1.9987/1.9980 180 LRS-32-SS 168

60 Case LinearRace shafting Class S Table 3

18



Thomson 60 Case* LinearRace* shafting (PreDrilled) Part NumberDescription and Specifications for Continuously Supported Applications

TypeLR

TypePDClass

LDescription60 Case LinearRaceshafting

Size8

101216202432

Option–SSTUCP

DescriptionStandard Carbon Steel440 C Stainless SteelTubular LitePreplate Chrome

DescriptionPreDrilled

LRL-16-SS-PD

NominalDiameter in.

.500

.625

.7501.0001.2501.5002.000

60 Case LinearRace Shaft Support Rails and Assembliesfor Continuously Supported Applications

Type–

SS

TU

CP

TypeSRA

Description60 Case LinearRace shaftingSupport Rail Assembly

DescriptionStandard AssemblyWith Stainless Steel 60 Case LinearRace shafting With Tubular Lite 60 Case LinearRace shaftingPrePlate Chrome

Size8

101216

SRA-16-SS x Length

SR-16-PD x Length

Nom.Dia..500.625.750

1.000

Nom.Dia.

1.2501.5002.000

Size202432

Type–

PD

Descriptionw/o PreDrilled holeswith PreDrilled holes

Part Number Part Number Part Number

60 CaseSolid

LinearRaceshafting

60 CaseLinearRace

shaftingDiameterClass L

Max.Length

in.

StainlessSteel

60 Case LinearRace

shafting

Max.Length

in.

ChromePlated

60 Case LinearRace

shafting

Max.Length

in.

LRL-8-PD .4995/.4990 168 –– –– LRL-8-CP-PD 168LRL-10-PD .6245/.6240 178 LRL-10-SS-PD 178 LRL-10-CP-PD 178LRL-12-PD .7495/.7490 178 LRL-12-SS-PD 178 LRL-12-CP-PD 178LRL-16-PD .9995/.9990 178 LRL-16-SS-PD 178 LRL-16-CP-PD 178LRL-20-PD 1.2495/1.2490 178 LRL-20-SS-PD 178 LRL-20-CP-PD 178LRL-24-PD 1.4994/1.4989 178 LRL-24-SS-PD 178 LRL-24-CP-PD 178LRL-32-PD 1.9994/1.9987 178 LRL-32-SS-PD 178 LRL-32-CP-PD 178

DescriptionLow Profile 60 CaseLinearRace shafting ShaftSupport Rail60 Case LinearRace shaftingShaft Support Rail

TypeLSR

SR

LRL-40-PD 2.4993/2.4985 178 LRL-40-SS-PD 178 LRL-40-CP-PD 178

LRL-64-PD 3.9988/3.9976 178 –– –– LRL-64-CP-PD 178LRL-48-PD 2.9992/2.9983 178 –– –– LRL-48-CP-PD 178

60 Case LinearRace shafting Table 5

19

20


Thomson Hardened-and-Ground60 Case* LinearRace* Steel shaftingSolid Steel 60 Case LinearRace shafting (Rockwell 60-65C) Table 6

WeightNom. Tolerances† Max.‡ Tolerances† Max.‡ Tolerances† Max.‡ Tolerances† Max.‡ Minimum Per InchDia. Class Length Class Length Class Length Class Length Hardness of Length

(inch) L (feet) S (feet) D (feet) N (feet) Depth (inch) (lb.)

3/16 .1870/.1865 2 - - - - - - .027 .0081/4 .2495/.2490 8 .2490/.2485 8 - - .2500/.2498 8 .027 .0143/8 .3745/.3740 14 .3740/.3735 14 - - .3750/.3748 14 .027 .0311/2 .4995/.4990 14 .4990/.4985 14 - - .5000/.4998 14 .040 .0555/8 .6245/.6240 15 .6240/.6235 15 - - .6250/.6248 15 .040 .0863/4 .7495/.7490 17 .7490/.7485 15 - - .7500/.7498 15 .060 .1257/8 .8745/.8740 15 - - - - .8750/.8748 15 .060 .1701 .9995/.9990 17 .9990/.9985 15 1.0003/1.0000 15 1.0000/.9998 15 .080 .222

1-1/8 1.1245/1.1240 15 - - - - 1.1250/1.1248 15 .080 .2811-1/4 1.2495/1.2490 17 1.2490/1.2485 15 1.2503/1.2500 15 1.2500/1.2498 15 .080 .3481-3/8 1.3745/1.3740 15 - - - - 1.3750/1.3747 15 .080 .4201-1/2 1.4994/1.4989 17 1.4989/1.4984 15 1.5003/1.5000 15 1.5000/1.4997 15 .080 .5001-5/8 1.6245/1.6240 15 - - - - 1.6250/1.6247 15 .080 .5871-3/4 1.7495/1.7490 15 - - - - 1.7500/1.7497 15 .100 .681

2 1.9994/1.9987 17 1.9987/1.9980 15 2.0003/2.0000 15 2.0000/1.9997 15 .100 .8902-1/2 2.4993/2.4985 17 2.4985/2.4977 15 - - 2.5000/2.4996 15 .100 1.391

3 2.9992/2.9983 17 2.9983/2.9974 14 - - 3.0000/2.9996 14 .100 2.0033-1/2 3.4990/3.4980 15 - - - - - - .100 2.726

4 3.9988/3.9976 17 3.9976/3.9964 15 - - - - .100 3.560

Solid 440C Stainless Steel 60 Case LinearRace shafting (Rockwell 50-55C) Table 7Nominal Tolerance† Max.‡ Minimum Weight

Dia. Length Hardness Per inch of(inch) Class L SS Class S SS (Feet) Depth (Inch) Length (lb.)

1/4 .2495/2490 .2490/.2485 5 .040 .0143/8 .3745/.3740 .3740/.3735 14 .040 .0311/2 .4995/.4990 .4990/.4985 14 .060 .0555/8 .6245/.6240 .6240/.6235 15 .060 .0863/4 .7495/.7490 .7490/.7485 15 .060 .1251 .9995/.9990 .9990/.9985 15 .080 .222

1-1/4 1.2495/1.2490 1.2490/1.2485 15 .080 .3481-1/2 1.4994/1.4989 1.4989/1.4984 15 .080 .500

2 1.9994/1.9987 1.9987/1.9980 15 .100 .8902-1/2 2.4993/2.4985 2.4985/2.4977 15 .100 1.391

Tubular 52100 Steel 60 Case LinearRace shafting (Rockwell 58-63C) Table 9Nominal Nominal Tolerance† Max.‡ Minimum Weight

O.D. I.D. Length Hardness Per inch of(inch) (inch) Class L TU Class S TU (Feet) Depth (Inch) Length (lb.)

3/4 .438 ± 5% .7495/.7490 .7490/.7485 15 .060 .0751 .599 ± 5% .9995/.9990 .9990/.9985 15 .080 .158

1-1/2 .890 ± 5% 1.4994/1.4989 1.4989/1.4984 15 .080 .3282 1.250 ± 5% 1.9994/1.9987 1.9987/1.9980 15 .100 .542

2-1/2 1.750 ± 5% 2.4993/2.4985 2.4985/2.4977 15 .100 .7493 2.000 ± 10% 2.9992/2.9983 2.9983/2.9974 15 .100 1.1124 3.000 ± 10% 3.9988/3.9976 3.9976/3.9964 15 .100 1.558

† Please specify Tolerance Class on order.‡ For longer lengths, shafts may be joined at factory. Contact your Thomson Distributor for a quotation.

Solid 440EH Stainless Steel 60 Case LinearRace shafting (Rockwell 60C Min.) Table 8Nominal Tolerance† Maximum Minimum Weight

O.D. Length Hardness Per inch of(inch) Class L SS EH (inch) Depth (inch) Length (lb.)1/2 .4495/.4490 166 .060 .0555/8 .6245/.6240 178 .060 .0863/4 .7495/.7490 178 .060 .1251 .9995/.9990 178 .080 .222

1-1/4 1.2495/1.2490 178 .080 .3481-1/2 1.4994/1.4989 178 .080 .500

21

Engineered for PrecisionMetric Diameter Solid Steel 60 Case* LinearRace*shafting (Rockwell 60-65C) Table 10Nominal Tolerances† Maximum‡ Minimum Weight

Dia. Class MM Length Hardness per Inch of(mm) (inch) (feet) Depth (inch) Length (lb.)

5 mm .1969/.1965 8 .027 .0098 mm .3150/.3146 14 .027 .02210 mm .3937/.3932 14 .027 .03512 mm .4724/.4720 14 .040 .05016 mm .6299/.6295 15 .040 .08820 mm .7874/.7869 15 .060 .13825 mm .9843/.9838 15 .080 .21630 mm 1.1811/1.1806 15 .080 .31140 mm 1.5748/1.5743 15 .080 .55350 mm 1.9685/1.9679 15 .100 .86460 mm 2.3622/2.3615 15 .100 1.24080 mm 3.1496/3.1489 15 .100 2.210


Class PD Stainless Steel 60 Case LinearRaceshafting with Drilled-and-Tapped Mounting Holes(Rockwell 50-55C) Table 13

Class “PD” 60 Case LinearRace* shafting––with Drilled and Tapped Mounting Holes Table 12

Nominal Tolerances Maximum Hole StandardDia. Class PD SS Length Spacing† Thread

(inch) (inch) (inch) (inch) Size

1/2 .4995/.4990 166 4 6-325/8 .6245/.6240 166 4 8-323/4 .7495/.7490 178 6 10-321 .9995/.9990 178 6 1/4-20

1-1/4 1.2495/1.2490 178 6 5/16-181-1/2 1.4994/1.4989 178 8 3/8-16

2 1.9994/1.9987 178 8 1/2-13

† Specify location of first hole when ordering. Setup charge $20.00.

Standard hole spacing (holes are drilled and tapped to center of shaft)

Metric Diameter Solid 440C Stainless Steel 60 CaseLinearRace shafting (Rockwell 50-55C) Table 11Nominal Tolerances† Maximum‡ Minimum Weight

Dia. Class MM SS Length Hardness per Inch of(mm) (inch) (feet) Depth (inch) Length (lb.)

5 mm .1969/.1965 5 .027 .0098 mm .3150/.3146 14 .027 .02210mm .3937/.3932 14 .027 .03512 mm .4724/.4720 15 .040 .05016 mm .6299/.6295 15 .040 .08820 mm .7874/.7869 15 .060 .13825 mm .9843/.9838 15 .080 .21630 mm 1.1811/1.1806 15 .080 .31140 mm 1.5748/1.5743 15 .080 .55350 mm 1.9685/1.9679 15 .100 .86460 mm 2.3622/2.3615 15 .100 1.240


Class XL Shafts for use withXR Ball Bushing bearings Table 16

Class XL MinimumNominal Diameter Maximum Depth of Weight

Dia. Tolerance Length* Hardness per Inch of(inch) (inch) (feet) (inch) Length (lb)

2 1.9994/1.9991 14 .100 .8903 2.9992/2.9989 14 .100 2.0034 3.9988/3.9983 14 .100 3.560

* For longer lengths contact factory.Material: Bearing-quality, high carbon alloy, 60-65Rc Hardness.

For use with Ball Bushing* and Roundway* bearings.Material: Bearing-quality, high carbon alloy steel.Thomson 60 Case hardened-and-ground steel shaft is available with drilled-and-tapped mounting holes accurately spaced on standard centers. We stock drilled-and-tapped 60 Case LinearRace shafting in 1/2 through 2-inch diameters.

Hole SpacingShaft X Y Standard Length Maximum

Diameter (inch ± 1/64) Thread Tolerance, LengthA, inch (noncumulative) inch Size inch inch

1/2 (0.4995/0.4990) 4 2 6-32 ±1/32 1665/8 (0.6245/0.6240 4 2 8-32 ±1/32 1783/4 (0.7495/0.7490) 6 3 10-32 ±1/32 178

1 (0.9995/0.9990) 6 3 1/4-20 ±1/32 1781-1/4 (1.2495/1.2490) 6 3 5/16-18 ±1/32 1781-1/2 (1.4994/1.4989) 8 4 3/8-16 ±1/32 178

2 (1.9994/1.9987) 8 4 1/2-13 ±1/16 178

Different Y dimensions are possible. Please specify when ordering. (See Page 29)

Instrument 440C Stainless Steel LinearRaceshafting for use with Thomson InstrumentBall Bushing* bearings Table 17Nominal Tolerances Maximum Minimum Weight

Dia. Class INST Length Hardness Depth Per Inch of(inch) (inch) (inch) (inch) Length (lb)

1/8 .1248/.1247 12 .027 .0043/16 .1873/.1872 12 .027 .0081/4 .2498/.2497 12 .027 .014

Class MMT1 Steel 60 Case LinearRace shaftingwith Drilled-and-Tapped Mounting Holes(Rockwell 60-65C) Table 14Nominal Tolerances Maximum Hole Standard

Dia. Class MMT1 Length Spacing Thread(mm) (inch) (inch) (mm) Size

12 mm .4724/.4720 166 75 M416 mm .6299/.6295 178 100 M520 mm .7874/.7869 178 100 M625 mm .9843/.9838 178 120 M830 mm 1.1811/1.1806 178 150 M1040 mm 1.5748/1.5743 178 200 M10

Class MMT2 Steel 60 Case LinearRace shaftingwith Drilled-and-Tapped Mounting Holes(Rockwell 60-65C) Table 15

Nominal Tolerances Maximum Hole StandardDia. Class MMT2 Length Spacing Thread

(mm) (inch) (inch) (mm) Size

12 mm .4724/.4720 166 120 M416 mm .6299/.6295 178 150 M520 mm .7874/.7869 178 150 M625 mm .9843/.9838 178 200 M830 mm 1.1811/1.1806 178 200 M1040 mm 1.5748/1.5743 178 300 M10

Surface Finish: 4-8 Ra for 2 inch and 3 inch diameters.6-10 Ra for 4 inch diameter.

Roundness: .0002 inch for 2 inch and 3 inch diameters..0003 inch for 4 inch diameter.

Hardness: HRC 55 minimum. Straightness: .0001( per inch cumulative.Surface Finish: 4 Ra or better. Standard Length Tolerance: ±.005

* Trademark of Thomson Industries, Inc. THOMSON is registered in the US Patent and TrademarkOffice and in other countries.© 1998 Thomson Industries, Inc.

22


60 Case* PrePlate*LinearRace* shafting

Solid 60 Case QUICK*Shafts in Standard Lengths

60 Case Ball GrooveLinearRace Shafts

Chrome plated shafting is available from stock in Class L and Class PD. Ends are not chrome plated.

The following sizes are available from stock at your local Thomson distributor.

Specifications: 60 Case Class “G” Ball-Groove LinearRace shafts(Bearing-quality, high carbon alloy steel) are case hardened to Rockwell 60-65C.Ends are chamfered 1/16( x 45º but not precision finished unless specified. Shaftstraightness is within .001( per foot. Groove straightness is within .002( per foot.Surface finish is 8 Ra micro inches. Length tolerance is ±1/32(.

60 Case PrePlate LinearRace shafting StandardCut-to-Length Version (without holes) Table 18

Nominal Tolerances Maximum WeightPart Diameter Class LCP Length Per Inch of

Number (inch) (inch) (inch) Length (lb)

1/2 L-CP 1/2 .4995/.4990 166 .0555/8 L-CP 5/8 .6245/.6240 178 .0863/4 L-CP 3/4 .7492/.7490 178 .1251 L-CP 1 .9995/.9990 178 .222

1-1/4 L-CP 1-1/4 1.2495/1.2490 178 .3481-1/2 L-CP 1-1/2 1.4994/1.4989 178 .500

2 L-CP 2 1.9994/1.9987 178 .890

QUICK* Shaft Steel 60 Case LinearRace shaftingStandard Length (Rockwell 60-65C) Table 22

Minimum WeightNominal Tolerance Standard Depth of per Inch

Part Dia. Class L Length Hardness of LengthNumber (inch) (inch) (inch) (inch) (lbs.)

QS 1/4 L 6 1/4 .2495/.2490 6 .027 .014QS 1/4 L 12 1/4 .2495/.2490 12 .027 .014QS 1/4 L 18 1/4 .2495/2490 18 .027 .014QS 1/4 L 24 1/4 .2495/.2490 24 .027 .014QS 1/4 L 30 1/4 .2495/.2490 30 .027 .014QS 1/4 L 36 1/4 .2495/.2490 36 .027 .014QS 1/4 L 48 1/4 .2495/.2490 48 .027 .014QS 1/4 L 60 1/4 .2495/.2490 60 .027 .014QS 3/8 L 6 3/8 .3745/.3740 6 .027 .031QS 3/8 L 12 3/8 .3745/.3740 12 .027 .031QS 3/8 L 18 3/8 .3745/.3740 18 .027 .031QS 3/8 L 24 3/8 .3745/.3740 24 .027 .031QS 3/8 L 36 3/8 .3745/.3740 36 .027 .031QS 3/8 L 48 3/8 .3745/.3740 48 .027 .031QS 3/8 L 60 3/8 .4745/.3740 60 .027 .031QS 1/2 L 12 1/2 .4995/.4990 12 .040 .055QS 1/2 L 18 1/2 .4995/.4990 18 .040 .055QS 1/2 L 24 1/2 .4995/.4990 24 .040 .055QS 1/2 L 30 1/2 .4995/.4990 30 .040 .055QS 1/2 L 36 1/2 .4995/.4990 36 .040 .055QS 1/2 L 42 1/2 .4995/.4990 42 .040 .055QS 1/2 L 48 1/2 .4995/.4990 48 .040 .055QS 1/2 L 60 1/2 .4995/.4990 60 .040 .055QS 5/8 L 12 5/8 .6245/.6240 12 .040 .086QS 5/8 L 18 5/8 .6245/.6240 18 .040 .086QS 5/8 L 24 5/8 .6245/.6240 24 .040 .086QS 5/8 L 30 5/8 .6245/.6240 30 .040 .086QS 5/8 L 36 5/8 .6245/.6240 36 .040 .086QS 5/8 L 42 5/8 .6245/.6240 42 .040 .086QS 5/8 L 48 5/8 .6245/.6240 48 .040 .086QS 5/8 L 60 5/8 .6245/.6240 60 .040 .086QS 3/4 L 12 3/4 .7495/.7490 12 .060 .125QS 3/4 L 18 3/4 .7495/.7490 18 .060 .125QS 3/4 L 24 3/4 .7495/.7490 24 .060 .125QS 3/4 L 30 3/4 .7495/.7490 30 .060 .125QS 3/4 L 36 3/4 .7495/.7490 36 .060 .125QS 3/4 L 42 3/4 .7495/.7490 42 .060 .125QS 3/4 L 48 3/4 .7495.7490 48 .060 .125QS 3/4 L 60 3/4 .7495/.7490 60 .060 .125QS 1 L 18 1 .9995/.9990 18 .080 .222QS 1 L 24 1 .9995/.9990 24 .080 .222QS 1 L 30 1 .9995/.9990 30 .080 .222QS 1 L 36 1 .9995/.9990 36 .080 .222QS 1 L 42 1 .9995/.9990 42 .080 .222QS 1 L 48 1 .9995/.9990 48 .080 .222QS 1 L 60 1 .9995/.9990 60 .080 .222QS 1 L 72 1 .9995/.9990 72 .080 .222QS 11/4 L 18 1-1/4 1.2495/1.2490 18 .080 .348QS 11/4 L 24 1-1/4 1.2495/1.2490 24 .080 .348QS 11/4 L 30 1-1/4 1.2495/1.2490 30 .080 .348QS 11/4 L 36 1-1/4 1.2495/1.2490 36 .080 .348QS 11/4 L 42 1-1/4 1.2495/1.2490 42 .080 .348QS 11/4 L 48 1-1/4 1.2495/1.2490 48 .080 .348QS 11/4 L 60 1-1/4 1.2495/1.2490 60 .080 .348QS 11/4 L 72 1-1/4 1.2495/1.2490 72 .080 .348QS 11/2 L 18 1-1/2 1.4994/1.4989 18 .080 .500QS 11/2 L 24 1-1/2 1.4994/1.4989 24 .080 .500QS 11/2 L 36 1-1/2 1.4994/1.4989 36 .080 .500QS 11/2 L 48 1-1/2 1.4994/1.4989 48 .080 .500QS 11/2 L 60 1-1/2 1.4994/1.4989 60 .080 .500QS 11/2 L 72 1-1/2 1.4994/1.4989 72 .080 .500

60 Case PrePlate LinearRace shaftingPre-Drilled and Tapped Version Table 19

Nominal Tolerances Maximum Weight HolePart Diameter Class LCP Length Per Inch of Spacing

Number (inch) (inch) (inch) Length (lb) (inch)

1/2 L-CP-PD 1/2 .4995/.4990 166 .055 45/8 L-CP-PD 5/8 .6245/.6240 178 .086 43/4 L-CP-PD 3/4 .7492/.7490 178 .125 61 L-CP-PD 1 .9995/.9990 178 .222 6

1-1/4 L-CP-PD 1-1/4 1.2495/1.2490 178 .348 61-1/2 L-CP-PD 1-1/2 1.4994/1.4989 178 .500 8

2 L-CP-PD 2 1.9994/1.9987 178 .890 8

Class “G” 60 Case Ball-Groove LinearRace shafts.For use with Super Ball Bushing* Bearings. Table 20Nominal Tolerances Maximum Minimum Weight

Dia. Class G Length Hardness Per Inch of(inch) (inch) (inch) Depth (inch) Length (lb)

1/4 .2495/.2490 45 .027 .0143/8 .3745/.3740 45 .027 .0311/2 .4995/.4990 45 .040 .0555/8 .6245/.6240 45 .040 .0863/4 .7495/.7490 45 .060 .1251 .9995/.9990 45 .080 .222

† For use only with Thomson SUPER BALL BUSHING linear bearings.For longer lengths please contact factory.

Class “G” Stainless Steel 60 Case LinearRaceShafting (Rockwell 50-55C) Table 21Nominal Tolerances Maximum Minimum

Dia. Class G SS Length Hardness(inch) (inch) (inch) Depth (inch)

1/4 .2495/.2490 45 .0403/8 .3745/.3740 45 .0401/2 .4995/.4990 45 .0605/8 .6245/.6240 45 .0603/4 .7495/.7490 45 .0601 .9995/.9990 45 .080

† For use only with Thomson SUPER BALL BUSHING linear bearings.

23

Thomson Hardened and Ground60 Case* LinearRace* shafting––RANDOM LENGTH ShaftsIMPORTANT INFORMATION: READ BEFORE ORDERING 60 CASE LINEARRACE SHAFTING!Random Lengths. Several inches on one or both ends of the random length LinearRace shaft may not be withindiameter tolerance. The minimum usable length of LinearRace shafting is listed in each table.Random lengths may be up to 7 inches longer than minimum usable length.

Solid Steel 60 Case LinearRace shafting (Rockwell 60-65C) Table 23Minimum Weight

Nom. Tolerances† Min.‡ Tolerances† Min.‡ Tolerances† Min.‡ Tolerances† Min.‡ Hardness Per InchDia. Class Usable Length Class Usable Length Class Usable Length Class Usable Length Depth of Length

(inch) L (inch) S (inch) D (inch) N (inch) (inch) (lb.)3/16 .1870/.1865 22 - - - - - - .027 .0081/4 .2495/.2490 94 .2490/2485 94 - - .2500/.2498 94 .027 .0143/8 .3745/.3740 166 .3740/.3735 166 - - .3750/.3748 166 .027 .0311/2 .4995/.4990 166 .4990/.4985 166 - - .5000/.4998 166 .040 .0555/8 .6245/.6240 178 .6240/.6235 178 - - .6250/.6248 178 .040 .0863/4 .7495/.7490 178 .7490/.7485 178 - - .7500/.7498 178 .060 .125

3/4 LRLL .7495/.7490 202 - - - - - - .060 .1257/8 .8745/.8740 178 - - - - .8750/.8748 178 .060 .1701 .9995/.9990 178 .9990/.9985 178 1.0003/1.0000 178 1.0000/.9998 178 .080 .222

1 LRLL .9995/.9990 202 - - - - - - .080 .2221-1/8 1.1245/1.1240 178 - - - - 1.1250/1.1248 178 .080 .2811-1/4 1.2495/1.2490 178 1.2490/1.2485 178 1.2500/1.2503 178 1.2500/1.2498 178 .080 .348

1-1/4 LRLL 1.2495/1.2490 202 - - - - - - .080 .3481-3/8 1.3745/1.3740 178 - - - - 1.3750/1.3747 178 .080 .4201-1/2 1.4994/1.4989 178 1.4989/1.4984 178 1.5000/1.5003 178 1.5000/1.4997 178 .080 .500

1-1/2 LRLL 2.5995/2.5989 202 - - - - - - .080 .5001-5/8 1.6245/1.6240 178 - - - - 1.6250/1.6247 178 .080 .5871-3/4 1.7495/1.7490 178 - - - - 1.7500/1.7497 178 .100 .681

2 1.9994/1.9987 178 1.9987/1.9980 178 2.0000/2.0003 178 2.0000/1.9997 178 .100 .8902 LRLL 1.9994/1.9987 202 - - - - - - .100 .8902-1/2 2.4993/2.4985 178 2.4985/2.4977 178 - - 2.5000/2.4996 178 .100 1.391

2-1/2 LRLL 2.4993/2.4985 202 - - - - - - .100 1.3913 2.9992/2.9983 178 2.9983/2.9974 178 - - 3.0000/2.9996 178 .100 2.003

3 LRLL 2.9992/2.9983 202 - - - - - - .100 2.0033-1/2 3.4990/3.4980 202 - - - - - - .100 2.726

4 3.9988/3.9976 202 3.9976/3.9964 202 - - - - .100 3.560

Solid 440C Stainless Steel 60 Case LinearRace shafting (Rockwell 50-55C) Table 24Nominal Tolerance† Minimum‡ Minimum Weight

Dia. Usable Length Hardness Per inch of(inch) Class L SS Class S SS (inch) Depth (inch) Length (lb.)1/4 .2495/.2490 .2490/.2485 54 .040 .0143/8 .3745/.3740 .3740/.3735 166 .040 .0311/2 .4495/.4490 .4490/.4485 166 .060 .0555/8 .6245/.6240 .6240/.6235 178 .060 .0863/4 .7495/.7490 .7490/.7485 178 .060 .1251 .9995/.9990 .9990/.9985 178 .080 .222

1-1/4 1.2495/1.2490 1.2490/1.2485 178 .080 .3481-1/2 1.4994/1.4989 1.4989/1.4984 178 .080 .500

2 1.994/1.9987 1.9987/1.9980 178 .100 ,8902-1/2 2.4993/2.4985 2.4985/2.4977 178 .100 1.391

Tubular 52100 Steel 60 Case LinearRace shafting (Rockwell 58-63C) Table 26Nominal Nominal Tolerance† Minimum‡ Minimum Weight

O.D. I.D. Usable Length Hardness Per inch of(inch) (inch) Class L TU Class S TU (inch) Depth (inch) Length (lb.)3/4 .438 ± 5% .7495/.7490 .7490/.7485 142 .060 .07541 .599 ± 5% .9995/.9990 .9990/.9985 173 .080 .158

1-1/2 .890 ± 5% 1.4994/1.4989 1.4989/1.4984 173 .080 .3282 1.250 ± 5% 1.9994/1.9987 1.9987/1.9980 173 .100 .542

2-1/2 1.750 ± 5% 2.4993/2.4985 2.4985/2.4977 173 .100 .7493 2.000 ± 10% 2.9992/2.9983 2.9983/2.9974 173 .100 1.1124 3.000 ± 10% 3.9988/3.9976 3.9976/3.9964 173 .100 1.558

† Please specify Tolerance Class on order. ‡ Random lengths may be up to 7 inches longer than minimum usable length.


Solid 440EH Stainless Steel 60 Case LinearRace shafting (Rockwell 60C Min.) Table 25Nominal Tolerance† Minimum‡ Minimum Weight

O.D. Length Hardness Per inch of(inch) Class L SS EH (inch) Depth (inch) Length (lb.)1/2 .4495/.4490 166 .060 .0555/8 .6245/.6240 178 .060 .0863/4 .7495/.7490 178 .060 .1251 .9995/.9990 178 .080 .222

1-1/4 1.2495/1.2490 178 .080 .3481-1/2 1.4994/1.4989 178 .080 .500

24


Thomson Hardened and Ground60 Case* LinearRace* shafting––RANDOM LENGTH ShaftsMetric Diameter Solid Steel 60 Case LinearRaceshafting (Rockwell 60-65C) Table 27Nominal Tolerances† Min.‡ Minimum Weight

Dia. Class M Usable Length Hardness per Inch of(mm) (inch) (inch) Depth (inch) Length (lbs.)

5 mm .1969/.1965 75 .027 .0098 mm .3150/.3146 166 .027 .02210 mm .3937/.3932 166 .027 .03512 mm .4724/.4720 166 .040 .05016 mm .6299/.6295 178 .040 .08820 mm .7874/.7869 178 .060 .13825 mm .9843/.9838 178 .080 .21630 mm 1.1811/1.1806 178 .080 .31140 mm 1.5748/1.5743 178 .080 .55350 mm 1.9685/1.9679 178 .100 .86460 mm 2.3622/2.3615 202 .100 1.24080 mm 3.1496/3.1489 178 .100 2.210

Metric Diameter Solid 440C Stainless Steel 60 CaseLinearRace shafting (Rockwell 50-55C) Table 28Nominal Tolerances† Min.‡ Minimum Weight

Dia. Class M SS Usable Length Hardness per Inch of(mm) (inch) (inch) Depth (inch) Length (lbs.)

5 mm .1969/.1965 54 .040 .0098 mm .3150/.3146 166 .040 .02210mm .3937/.3932 166 .027 .03512 mm .4724/.4720 166 .060 .05016 mm .6299/.6295 178 .060 .08820 mm .7874/.7869 178 .060 .13825 mm .9843/.9838 178 .080 .21630 mm 1.1811/1.1806 178 .080 .31140 mm 1.5748/1.5743 178 .080 .55350 mm 1.9685/1.9679 178 .100 .86460 mm 2.3622/2.3615 178 .100 1.240

Class XL LinearRace shafting forExtra Rigid Series XR System Table 29Nominal Tolerances† Min.‡ Minimum Weight

Dia. Class XL Usable Length Hardness per Inch of(inch) (inch) (inch) Depth (inch) Length (lbs.)

2 1.9994/1.9991 178 .100 .8903 2.9992/2.9989 178 .100 2.0034 3.9988/3.9983 202 .100 3.560

Class L PD Steel 60 Case LinearRace shaftingwith Drilled and Tapped Mounting Holes(Rockwell 60-65C) Table 30Nominal Tolerances† Hole Standard

Dia. Class L PD Length Spacing† Thread(inch) (inch) (inch) (inch) Size

1/2 .4995/.4990 166 4 6-325/8 .6245/.6240 178 4 8-323/4 .7495/.7490 178 6 10-321 .9995/.9990 178 6 1/4-20

1-1/4 1.2495/1.2490 178 6 5/16-181-1/2 1.4994/1.4989 178 8 3/8-16

2 1.9994/1.9987 178 8 1/2-13

Class L PD SS Stainless Steel 60 Case LinearRaceshafting with Drilled and Tapped Mounting Holes(Rockwell 50-55C) Table 31Nominal Tolerances† Hole Standard

Dia. Class L PD SS Length Spacing† Thread(inch) (inch) (inch) (inch) Size1/2 .4995/.4990 166 4 6-325/8 .6245/.6240 178 4 8-323/4 .7495/.7490 178 6 10-321 .9995/.9990 178 6 1/4-20

1-1/4 1.2495/1.2490 178 6 5/16-181-1/2 1.4994/1.4989 178 8 3/8-16

2 1.9994/1.9987 178 8 1/2-13

Class MMT1 Steel 60 Case LinearRace shafting with Drilledand Tapped Mounting Holes (Rockwell 60-65C) Table 32Nominal Tolerance† Hole Standard

Dia. Class MMT1 Length Spacing† Thread(mm) (inch) (inch) (mm) Size

12 mm .4724/.4720 166 75 M416 mm .6299/.6295 178 100 M520 mm .7874/.7869 178 100 M625 mm .9843/.9838 178 120 M830 mm 1.1811/1.1806 178 150 M1040 mm 1.5748/.1.5743 178 200 M10

Class MMT2 Steel 60 Case LinearRace shaftingwith Drilled and Tapped Mounting Holes(Rockwell 60-65C) Table 33Nominal Tolerances† Hole Standard

Dia. Class MMT2 Length Spacing† Thread(mm) (inch) (inch) (mm) Size

12 mm .4724/.4720 166 120 M416 mm .6299/.6295 178 150 M520 mm .7874/.7869 178 150 M625 mm .9843/.9838 178 200 M830 mm 1.1811/1.1806 178 200 M1040 mm 1.5748/.1.5743 178 300 M10

60 Case PrePlate LinearRace shaftingStandard Cut-to-Length Version Table 34

Nominal Tolerances†

Part Diameter Class LCP Length MassNumber (inch) (inch) (inch) (lb/in)

1/2 L-CP 1/2 .4995/.4990 166 .0555/8 L-CP 5/8 .6245/.6240 178 .0863/4 L-CP 3/4 .7495/.7490 178 .1251 L-CP 1 .9995/.9990 178 .222

1-1/4 L-CP 11/4 1.2495/1.2490 178 .3481-1/2 L-CP 11/2 1.4994/1.4989 178 .500

2 L-CP 2 1.9994/1.9987 178 .890

60 Case PrePlate LinearRace shaftingPre-Drilled and Tapped Version Table 35

Tolerances† StandardPart Class LCP Length Hole Thread

Number (inch) (inch) Spacing Size1/2 L-CP-PD .4995/.4990 166 4 6-325/8 L-CP-PD .6245/.6240 178 4 8-323/4 L-CP-PD .7495/.7490 178 6 10-321 L-CP-PD .9995/.9990 178 6 1/4-20

1-1/4 L-CP-PD 1.2495/1.2490 178 6 5/16-181-1/2 L-CP-PD 1.4994/1.4989 178 8 3/8-16

2 L-CP-PD 1.9994/1.9987 178 8 1/2-13

† Specify location of first hole when ordering.‡ Random lengths may be up to 7 inches longer than minimum usable lengths.

25

Precision MachiningCustom Machined 60 Case* LinearRace* shafting.Skilled machinists can perform a wide variety of specialmachining operations on the ends or along the length of60 Case* shafts to provide exactly the part needed for yourapplication.

Standard 60 Case shafting, which is always availablefrom stock, can be cut with special length tolerances. 60Case LinearRace shafting may also be drilled with a varietyof radial holes and tapped if needed. Shafts can be suppliedwith flats, keyways and reduced diameters.

There is an extra charge for all special machiningoperations. For specific prices, send your sketch to Thomson.

Special Length Tolerance.Standard length tolerance is ± 1/32( for shafts less than2( diameter and ± 1/16( for 2( diameter and larger. Speciallength tolerances of ± .010(, ±.005( and .002( can beachieved on shafts up to 4( in diameter.

Special Straightness Tolerance.Standard straightness is .001( per foot, cumulative(.002( TIR). Special straightness tolerance is .0005(

per foot, cumulative (.001( TIR), for all diameters.

Special Chamfer.Standard chamfer is 1/16( x 45º.Chamfer of 1/32( x 45º can besupplied at no extra charge. Specialchamfer (any angle) can be supplied.

Machining Shaft Ends.Prior to threading or turning shaft ends, the annealing processmay cause approximately 1/4( to 1/2( of heat travel frommachined area (depending on major shaft O.D.). Hardnessof major shaft diameter near the machined area will be belowRockwell 60-65C. If annealing effects are objectionable,alternate machining processes can be used which preventmajor diameter softening. Contact factory for special options.(See relevant sections following).

Threaded Shaft Diameter.

Standard threads are either Unified National Coarse or Uni-fied National Fine, Class 2-A fit. Shafts will be annealed andsoft around the circumference of threaded areas within thecase.

Reduced Shaft Diameter.

Standard diameter tolerance on turned down diameters is± .001(. Special tolerance of ± .0001( is available. Concentricityis within .001( total indicator reading. Shafts are annealedand soft in turned down sections within the case. Two-stepshaft diameter reduction is also available.

Radial Holes Drilled and Tapped to Center of Shaft.U.N.C. or U.N.F. Class 2-B thread.Tolerances for hole alignmentand location are ± 1/64(, ± .010(

and ± .005(.

Radial Holes Drilled and Tapped thru Shaft.U.N.C. or U.N.F. Class 2-B thread.Alignment and location tolerance± .010( shaft annealed and softaround circumference in holearea.

Radial Holes Drilled thru Shaft.Alignment and location tolerance± .010(. Shaft may be annealedand soft around circumferencein hole area.

45º

Threading major diameter Threading reduced diameter

Reduced diameter Two-stepdiameter reduction


For requests for quotation and ordering custom machined 60 Case LinearRaceshafting see the convenient templates on pages 38 through 55.

26


Radial Holes Drilled and Reamed thru Shafts.Alignment and locationtolerance ± .010(. Holediameter tolerance ± .001(.Shaft annealed and soft around circumference in hole area.

Radial Holes Drilled thru Shaft andCounterbored for Cap Screw.Alignment and location tolerance± .010(. Tolerance for bodydiameter and head diameterfor American Std. cap screw is+ 1/32(. Shaft remains hard in hole area (not annealed).

Coaxial Holes Drilled and Tappedin Center of End of Shaft.U.N.C. or U.N.F. Class 2-Bthread. Concentricity ± .005(.Certain diameters and materials will be annealed and remainsoft around the circumference. Note: Holes may also belocated on a “bolt” circle. Location tolerance is .010(.

Retaining Ring Groove.Location tolerances betweengrooves ± 1/64( or ± .005(.Tolerance of ± .005( formaximum ring groove spacing of 96(.

Joining Shafts to Obtain Longer Lengths.Threaded and ground joints for 3/4( thru 4( and 20mmthru 80mm diameter shaft for lengths up to 20 feet. Doweledjoints with concentricity ± .001( for 1/2( thru 4( and 12mmthru 80mm diameter shaft.

The feasibility of butted joints should be considered aspossibly the most economical solution before consideringeither of the previous alternatives.

Butted Joints.Ends machined square,no chamfer. Availablefor all nominal shaftdiameters.

Flats.Flats are available. Flats extending over large portion or entirelength of shaft are not available. Cutting into the hardenedlayer would cause considerable warping and subsequentstraightening cost is prohibitive.

One Flat on a Shaft.Location tolerance± .001(.

Multiple Flats on a Shaft.Alignment and locationtolerance ± 1/64(.

Drilled Spot for Set Screws.Location tolerance ± 1/64(.Drill sizes 1/8( thru 3/4(.

Keyways.Keyways may be square, flat or American StandardWoodruff. Available for nominal shaft diameters from1/2( thru 4(.

Threaded and groundjoint

Dowel joint

Shaft support

Butted joint

Shaft support

��

��

W

Square Flat Woodruff

1/2 W

��

For requests for quotation and ordering custom machined 60 Case LinearRaceshafting see the convenient templates on pages 38 through 55.

27

Shaft Supports Simplify Mounting of 60 Case*LinearRace* shaftingShaft Supports.The low cost way of mounting LinearRace shaftsand guide rods.Thomson Industries, Inc., also has a complete line ofengineered shaft supports. These shaft supports simplifymounting of Thomson 60 Case hardened and groundLinearRace shafts for use with Thomson Ball Bushing*bearings or Thomson Roundway* bearings.

All users of LinearRace shafting should carefully considerthe use of these low cost shaft supports. They are standard,available from stock, and simplify LinearRace shaft mounting.In addition to many other benefits, they eliminate manyproblems encountered in designing and manufacturing shaft-supporting devices. These versatile mounts can be usedhorizontally or vertically, and in many different arrangements.

Thomson standard shaft supports are available in threedifferent types: 1) shaft support rails for continuous supportor intermittent support; 2) shaft support blocks for end orintermittent support, and 3) Waymount support whichincorporate means for straightening and providing exactalignment of shafting in both planes without the use of shims.

Shaft Support Rails withMounting Holes Type SR-PD.To match Thomson drilled and tapped shafts.Also available as pre-assembled sets.Shaft support rails for the various LinearRace shaft diameters,shafts or guide rods provide optimum rigidity for eithercontinuous or intermittent support. These rails arenon-adjustable, therefore shimming or grouting is suggestedfor high precision applications to eliminate variations in thesurface of base or tolerances between rail sections.

Pre-drilled shaft rails to support 1/2-inch through 2-inchdiameter shafts are furnished in standard 24-inch lengths.

Where shorter lengths are needed, rails are easily cut to length. For longer shafts they can be mounted end to

end, using shims or grout, if necessary, to compensate for slight variation within manufacturing tolerance. Shaft

support rails are suitable for use with Thomson open Ball Bushing bearings and Roundway

bearings. Thomson offers shaft support railswith pre-drilled holes to simplify shaft

mounting. Pre-drilled shaft rails, for a broad range of standard shaft diameters, are available forimmediate delivery and can be

used with Thomson 60 Case shafts(Class PD) having standard drilled and tapped holes.

Pre-Assembled Shaft Rail Assemblies.Thomson 60 Case steel shafts mounted on shaft support

rails are now available for instant bolt-down installation.Assemblies are supplied cut to any length, with

no limit on the overall length. Either solidor light-weight tubular shafting can

be assembled to the standardThomson support rails, whichcome with base mounting holes

spaced evenly along theoverall length of the assembly.

Low Shaft Support Rails Type LSR-PD.For compact designs. Low Shaft Rails allow the design of more compact linearmotion systems. The height from the base to the meanshaft center ranges from 9/16-inch for supporting a1/2-inch diametershaft to a maximum31/2-inches whensupporting a4-inch diametershaft––40% lowerthan standardsupport rails.

Continuous support Intermittent support


28


Low Shaft Rails are made of steel to maintain optimumshaft rigidity. Either continuous or intermittent support ispossible when using Thomson open-type linear ball bearings.

Low Shaft Rails are furnished in standard 4-foot lengths.Where shorter lengths are required, rails can be easily cut.Thomson offers this service at a modest additional cost.For supporting longer shafts, rails can be mounted endto end without limit.

Low Shaft Rails are supplied with shaft mounting holesto match Thomson drilled and tapped shafts (Class PD).If one of the standard pre-drilled Low Shaft Rails is notappropriate for your design needs, Low Shaft Rails canbe custom drilled by Thomson to your specifications.

Send a sketch or print giving all required dimensions,tolerances, and quantities needed. Low shaft supportrails are also available without pre-drilled mounting holes.(Type LSR)

Extra-Rigid Shaft Support Rails.For XR* Ball Bushing* bearing systems.

Extra rigid shaftsupport rails,Type XSR are designedspecifically for use withour extra-rigid Series XR* Ball Bush-ing* bearings. XSR support railsare available in nominal 24-inch lengths and are made ofductile iron to provide the most deflection-resistant shaftsupport of all Thomson supports.

To facilitate quick and easy installation, each extra-rigidshaft support is drilled and counter-bored for securing adrilled and tapped shaft to it and for bolting it to a flat, rigidbase. For supporting long shafts, Type XSR support railscan be mounted end-to-end. For shorter lengths, XSRsupport rails can be supplied cut to required length.Contact factory for price and delivery.

Shaft Support Blocks––Type SB and ASB.For end support or intermittent support.Shaft support blocks are used for end or intermittentsupport where loads are light anddeflection between supports is not aproblem. Unlike shaft support rails,blocks do not permit longitudinal passageof open-type Ball Bushing bearings.

Shaft support blocks enableclamping of shafts, eliminate theneed for bolts, etc. to maintain shaftposition. Shimming is suggested for highprecision applications to eliminate the effect of variations insurface of base or manufacturing tolerances between supports.

Type ASB shaft blocks, manufactured from high strengthextruded aluminum, provide either end or intermittent supportin applications where loads are light and deflection betweensupports is minimal. The blocks are designed with areference edge on one side of the base. This providesa surface parallel to the center of the shaft within ± .001(

that can be used to simplify shaft alignment.

Waymount* Supports.For adjustable support.Designed for use withRoundway* bearings. Twoor more can be used toprovide intermittent supportand adjustment alongthe length of the shaft.

Unlike shaft supportrails, Waymount supportsdo not permit longitudinalpassage of open-type BallBushing* bearings. When it isnecessary to travel over Waymount supports, Roundwaybearings should be used. Open-type Ball Bushing bearingscan be used only if side loads are light and an adapter blockis used (consult factory for recommendation).

End SupportIntermittent Support

End Support

29

Shaft Supports Engineering Specifications

A C

G

F

BE

D

20°Type SR-PD Shaft Support Rails with Mounting Holes––Dimensions Table 36

Nom. A B C D E F G Wt.Part Shaft Per Ft.

Number Dia. (inch) ±.002 Bolt Hole Screw Hole Lbs.

SR-8-PD 1/2 1.125 1-1/2 1-1/4 3/16 1 6 .169 6-32x7/8 .169 .6SR-10-PD 5/8 1.125 1-5/8 5/16 1/4 1-1/8 8 .193 3-32x7/8 .193 .8SR-12-PD 3/4 1.500 1-3/4 3/8 1/4 1-1/4 10 .221 10-32x1-1/4 1.0 1.0SR-16-PD 1 1.750 2-1/8 1/2 1/4 1-1/2 1/4 .281 1/4-20x1-1/2 .281 1.4SR-20-PD 1-1/4 2.125 2-1/2 9/16 5/16 1-7/8 5/16 .343 5/16-18x1-3/4 .343 2.1SR-24-PD 1-1/2 2.500 3 11/16 3/8 2-1/4 5/16 .343 3/8-16x2 .406 2.6SR-32-PD 2 3.250 3-3/4 7/8 1/2 2-3/4 3/8 .406 1/2-13x2-1/2 .531 4.2

Type SR Shaft Support Rails––Dimensions Table 37

Nom. A† B C D Wt.Part Shaft Per Ft.No. Dia. ±.002 Lbs.

SR-8 1/2( 1.125 1-1/2( 1/4( 3/16( .6SR-10 5/8( 1.125 1-5/8( 5/16( 1/4( .8SR-12 3/4( 1.500 1-3/4( 3/8( 1/4( 1.0SR-16 1( 1.750 2-1/8( 1/2( 1/4( 1.4SR-20 1-1/4( 2.125 2-1/2( 9/16( 5/16( 2.1SR-24 1-1/2( 2.500 3( 11/16( 3/8( 2.6SR-32 2( 3.250 3-3/4( 7/8( 1/2( 4.2

*G Hole Dia. includes counterbore for socket head cap screw.MATERIAL: Aluminum alloy extrusion.

2 4 4 4 4 42

REF

3REF

4REF

3 6 6 6

4 8 8

SR-8-PD, SR-10-PD

SR--12-PD, SR-16-PD, SR-20-PD

SR--24-PD, SR-32-PD

Mounting hole patterns for various sizes.Alignment and location of holes are ± .010, noncumulative.

How to Order: When ordering standard 24 inch support rails with mountingholes, order by part number only (for example, SR-16-PD).

Shaft rails can be cut if a shorter length is required.Specify exact length along with part number (for example,SR-16-PD, 12 inches long). Thomson will provide thiscutting service at a slight additional charge.

When ordering shaft/support rail assembies specifythe shaft diameter and overall length and we will assembleusing standard pre-drilled shafts and support rails.

For hole spacing requirements other than standardlisted above please send drawing along with your requestfor quotation.

In-Between Shaft Sizes: Shaft support rails will accommodate allshaft sizes from approximately 3/8( to 21/4( diameter. Use the shaftsupport rail size nearest to your particular shaft diameter. Favor thenext larger rail if the shaft size falls midway between two of them.The mean centerline height “A” will vary somewhat with differentdiameter shafts.

Note: Rails are furnished with or without pre-drilled holes. Rails maybe used in tandem with long shafts.

Material: Aluminum alloy extrusion.G –– Recommended thread for shaft-attaching screws. F–– Maximum mounting bolt size for proper clearance with Thom-

son Type PBO Ball Bushing* pillow blocks.E–– Suggested mounting hole location.

A

G

ED

20°

STANDARD LENGTH - 24" +0-3/32"


30


Type LSR and LSR-PD Shaft Support Rails––Dimensions (in inches) Table 38LSR-PD

A B C E G Hole SpacingPart Shaft Weight PerNo. Dia. ±.002 Ref. Screw Hole X Y Ft. (lbs.)

LSR-8.500 .562 .370 1/4 .341 6-32 .169 4 2 .32LSR-8-PD

LSR-10.625 .687 .450 5/16 .412 8-32 .193 4 2 .49LSR-10-PD

LSR-12.750 .750 .510 3/8 .420 10-32 .221 6 3 .59LSR-12-PD

LSR-161.000 1.000 .690 1/2 .560 1/4-20 .281 6 3 1.01LSR-16-PD

LSR-201.250 1.187 .780 9/16 .626 5/16-18 .343 6 3 1.27LSR-20-PD

LSR-241.500 1.375 .930 11/16 .703 3/8-16 .406 8 4 1.68LSR-24-PD

LSR-322.000 1.750 1.180 7/8 .845 1/2-13 .531 8 4 2.59LSR-32-PD

LSR-402.500 2.250 1.500 11/8 1.125 5/8-11 .687 8 4 4.48LSR-40-PD

LSR-483.000 2.750 1.875 13/8 1/404 3/4-10 .812 8 4 6.98LSR-48-PD

LSR-644.000 3.500 2.500 17/8 1.750 1-8 1.060 8 4 11.80LSR-64-PD

Not for use with Type PB-OPN pillow block. Material: Steel

A

BASE MOUNTINGSURFACE

4 FT. STANDARD LENGTH

HOLE

SHAFT DIA.

E

B

GXY

C

G

12° TYP

20° TYP

Notes: 1. “A” dimension will not vary more than .002 inch in any one

length of Low Shaft Rail.2. Shimming may be necessary when variations exist in the base

surface.3. Low Shaft Rails will accommodate all shaft sizes from 3/8( to 4(

diameter. Use the Low Shaft Rail (LSR) size nearest your particularshaft diameter. Favor the next larger rail if the shaft diameter fallsmidway between two of them. The mean centerline height “A” willvary somewhat with different diameter shafts.

4. “G” screw size is required to match Thomson Class PD LinearRaceshafts with drilled and tapped mounting holes. “G” hole size isstanard clearance hole in the Low Shaft Rails with mountingholes (type LSR-PD).

How to Order: Specify Low Shaft Rail with standard mounting holes by partnumber (for example, LSR-8-PD) and we will supply the railwith hole sizes and spacing listed in the table.

Low Shaft Rails will be supplied in 4 foot lengths whenordered by part number only. Special lengths can be providedat a slight additional cost. Contact Thomson for prices.

If hole spacing is required other than standard, senddrawing to Thomson with all dimensions, tolerances, andquantities required. We will promptly reply with a quotation.

When ordering standard Low Shaft Rails without mount-ing holes, order by part number only (for example, LSR-8).

31

Metric Shaft Support Rails

Type SR Shaft Support Rails Table 39Part Number Dimensions (mm) Bolt Hole

Shaft(1)

With WithSpacing Sizes

RailWithout T1 Hole T2 Hole

d H H1 A A1 M E T1 T2 N1 N2 MassHoles Spacing Spacing h6 ±0,02 ±0,02 ±0,15 (mm) (mm) (kg)

SR M12 SR M12 T1 SR M12 T2 12 28 5 43 21,5 9 29 75 120 M4 4,5 1,9SR M16 SR M16 T1 SR M16 T2 16 30 5 48 24,0 10 33 100 150 M5 5,5 2,8SR M20 SR M20 T1 SR M16 T2 20 38 6 56 28,0 11 37 100 150 M6 6,6 4,2SR M25 SR M25 T1 SR M25 T2 25 42 6 60 30,0 14 42 120 200 M8 6,6 5,9SR M 30 SR M30 T1 SR M30 T2 30 53 8 74 37,0 14 51 150 200 M10 8,6 8,7SR M40 SR M40 T1 SR M40 T2 40 60 8 78 39,0 18 55 200 300 M10 8,6 13,6

(1)Standard length 600 mm Material: Aluminum Alloy

Shaft Support Rails

Type LSR Low Shaft Support Rails Table 40Part Number Dimensions (mm) Bolt Hole Shaft(2)

RailWithout With T2 Hole d H A A1 M Spacing (mm) Size MassHoles Spacing h6 ±0,02 ±0,02 ±0,15 T2 N (kg)

LSR M12 LSR M12 T2 12 14 12 6,0 6,0 120 M4 1,5LSR M16 LSR M16 T2 16 18 14 7,0 7,0 150 M5 2,4LSR M20 LSR M20 T2 20 22 17 8,5 8,3 150 M6 3,7LSR M25 LSR M25 T2 25 26 21 10,5 10,8 200 M8 5,6LSR M30 LSR M30 T2 30 30 23 11,5 11,0 200 M10 9,0LSR M40 LSR M40 T2 40 39 30 15,0 15,0 300 M12 13,3

(2)Standard length 1200 mm Material: Steel

Low Shaft Support Rails


32


Type XSR Shaft Support Rails––Dimensions Table 41

Nom. A† B C D E F GHExtra Rigid Shaft Recom-

Support Rail Dia. +.000 Screw mended wt/ftPart No. (inches) –.001 Dia. Hole C Bore Screw Hole C Bore Degrees (lbs.)

XSR-32 2 2.750 4-1/2 7/8 1 3-1/8 1/2 9/16 1 x 5/8 DP 1/2-13 x 2 9/16 1 x 3/4 DP 15 16XSR-48 3 4.000 6 1-1/4 1-5/16 4-1/4 5/8 11/16 1-1/4 x 3/4 DP 3/4-10 x 2-3/4 13/16 1-7/16 x 1-1/8 DP 25 31

†Centerline of shaft will be parallel to base within .0005 *Surface dimensions are as cast

Thomson Standard Shaft Rail Assemblies Table 42Assembly Number Dimensions (inches) Base Holes Weight per Foot (lbs.)

NominalA B C D E F X YWith Solid With Solid With Tubular Linear Bearing SRA

Carbon Steel Shaft Stainless Steel Shaft Carbon Steel Shaft Race Diameter and(Linear Bearing Race) (Linear Bearing Race) (Linear Bearing Race) (inches) ±.002 Bolt Hole SRA-SS SRA-TU

SRA-8 SRA-8-SS – 1/2 1.125 1-1/2 1/4 3/16 1 6 .169 4 2 1.26 –SRA-10 SRA-10-SS – 5/8 1.125 1-5/8 5/16 1/4 1-1/8 8 .193 4 2 1.83 –SRA-12 SRA-12-SS SRA-12-TU 3/4 1.500 1-3/4 3/8 1/4 1-1/4 10 .221 6 3 2.50 1.90SRA-16 SRA-16-SS SRA-16-TU 1 1.750 2-1/8 1/2 1/4 1-1/2 1/4 .281 6 3 4.06 3.30SRA-20 SRA-20-SS – 1-1/4 2.125 2-1/2 9/16 5/16 1-7/8 5/16 .343 6 3 6.28 –SRA-24 SRA-24-SS SRA-24-TU 1-1/2 2.500 3 11/16 3/8 2-1/4 5/16 .343 8 4 8.60 6.54SRA-32 SRA-32-SS SRA-32-TU 2 3.250 3-3/4 7/8 1/2 2-3/4 3/8 .406 8 4 14.88 10.70

Support Rail Material: Aluminum alloy extrusion. Base mounting hole locations are within ±.010(, noncumulative *Surface dimensions are as cast

A

C

F

BE

4 4 4 4Y

Y

4

H

D��E

E

G

Lock washersrecommended

Y

Y

2313/16 ± 1/8

2313/16 ± 1/8

131/32REF 6 6 6

231/32REF

XSR-32 XSR-48

C

BE

A

D

SPECIFY LENGTHWHEN ORDERING

X Y

F

CL

Shaft Support Rails

33

Thomson Extra Rigid Shaft Rail Assemblies

Metric Shaft Rail AssembliesType SRAMT1 and SRAMT2 LinearRace shafting Support Rail Assemblies Table 44

Part NumberSRAMT1 SRAMT2Assembly Assembly

With Withd H H1 A A1 M E N1 N2 T1 T2 MassLinearRace LinearRace

±.02 ±0.02 ±0.15 kg/mshafting shaftingSRAM12T1 SRAM12T2 12 28 5 43 21.5 9 29 M4 4.5 75 120 4,06SRAM16T1 SRAM16T2 16 30 5 48 24 10 33 M5 5.5 100 150 6,24SRAM20T1 SRAM20T2 20 38 6 56 28 11 37 M6 6.6 100 150 10,44SRAM25T1 SRAM25T2 25 42 6 60 30 14 42 M8 6.6 120 200 13,69SRAM30T1 SRAM30T2 30 53 8 74 37 14 51 M10 8.6 150 200 20,02SRAM40T1 SRAM40T2 40 60 8 78 39 18 55 M10 8.6 200 300 32,54

M

d

AE A1

N1

H

H1


T T/2

N2

CL

Shaft Support Rails

Assemblies may be ordered in any length

Thomson Extra Rigid Shaft Rail Assemblies Table 43Assembly Number Nominal Dimensions (inches) Base Holes Weight per Foot (lbs.)

LinearRaceA B C D E F

X Yshafting

With Solid With Tubular Diameter +.000 ScrewCarbon Steel Shaft Carbon Steel Shaft (inches) –.001 Dia. Hole C Bore XSRA XSRA-TU

XSRA-32 XSRA-32-TU 2 2.750 4-1/2 7/8 1 3-1/8 1/2 9/16 1 x 5/8 DP 4 1-31/32 40.04 22.50XSRA-48 XSRA-48-TU 3 4.000 6 1-1/4 1-5/16 4-1/4 5/8 11/16 1-1/4 x 3/4 DP 6 2-31/32 73.72 49.70


C

B

E

A

DX Y

F

CL


Type LSRA Smart Rail* Guides (Dimensions in inches) Table 45

Type LSRAM Smart Rail Assemblies (Dimensions in inches) Table 46

34


Smart Rail* Guides(For use with Super Smart Ball Bushing* bearings only)

Thomson Smart Rail Guides provide a low profile,bolt-down-from-the-top solution for linear motion.

Smart Rail guides offer:• Quick installation is made possible with

the bolt-down-from-the-top mounting feature.

• Reduce machine costs and size through the

use of smaller, less expensive Super Smart

Ball Bushing bearings and Smart Rail guides.

• Lengths up to 178 inches are available without

requiring joints.

• Corrosion resistant versions are also available

to suit a wide variety of needs.

Smart Rail Guides

N1

X1 Y

A

M

H

A1

Material: Steel AlloyLonger lengths are available

Type LSRA 60 Case*Smart Rail Assemblies

(1) = Consists of black oxide steel rail and high carbon steel LinearRace shafting (HRC 60-65).(2) = Consists of zinc plated steel rail and 440C stainless steel LinearRace shafting (HRC 50-55).(3) = Specify length of Smart Rail when ordering. For example, LSRA M20 x 1200mm.S dimension is equal on each end unless specified by customer.

A

M

H

A1N1

T4 S

Part Number (3)LinearRace H A A1 M Mounting Holes

Smart Rail Smart Rail Diameter MassLinearRace(1) LinearRace(2)

shafting shafting h6 ±.02 ±0.02 ±0.15 T4 N1 kg/m

LSRA M16 LSRA M16 CR 16 18 14 7.0 7.0 40 M3 3.6LSRA M20 LSRA M20 CR 20 22 17 8.5 8.3 60 M4 5.5LSRA M25 LSRA M25 CR 25 26 21 10.5 10.8 60 M5 8.5LSRA M30 LSRA M30 CR 30 30 23 11.5 11.7 80 M6 13.0LSRA M40 LSRA M40 CR 40 39 30 15.0 15.0 105 M10 21.0

(1) = Consists of black oxide steel rail and high carbon steel LinearRace shafting (HRC 60-65).(2) = Consists of zinc plated steel rail and 440C stainless steel LinearRace shafting (HRC 50-55).(3) = Specify length of assembly when ordering. For example, LSRA12CR x 24.00 inches.Y dimension is equal on each end unless specified by customer.

Part Number(3)LinearRace H A A1 M Mounting Holes

Smart Rail Smart Rail shafting WeightAssembly(1) Assembly(2) Diameter +/–0.002 X1 N1 lb/ft

LSRA10 LSRA10CR 0.625 0.687 0.45 0.225 .31 2 #5 1.57LSRA12 LSRA12CR 0.750 0.750 0.51 0.255 .38 3 #6 2.09LSRA16 LSRA16CR 1.000 1.000 0.69 0.345 .5 3 #10 3.67LSRA20 LSRA20CR 1.250 1.187 0.78 0.390 .56 3 5/16 5.86LSRA24 LSRA24CR 1.500 1.375 0.93 0.465 .69 4 3/8 7.68

Attention: Thomson Linear Ball Bushing bearings are precision components.To preserve bearing warranty you must use the specified Thomson 60 Case* LinearRace shafting.

NEW!

35

Type SB Shaft Support Blocks––Dimensions Table 47Nom.* A† B C D E F G HPart. Shaft Weight

No. Dia. ±.002 ±.010 Bolt Hole (lbs.)

SB-4 1/4( .687 1-1/2( 1/2( 1-1/16( 1-1/8( 1/4( 5/8( #6 5/32( .03SB-6 3/8( .750 1-5/8( 9/16( 1-3/16( 1-1/4( 1/4( 11/16( #6 5/32( .05SB-8 1/2( 1.000 2( 5/8( 1-5/8( 1-1/2( 1/4( 3/4( #8 3/16( .3SB-10 5/8( 1.000 2-1/2( 11/16( 1-3/4( 1-7/8( 5/16( 7/8( #10 7/32( .4SB-12 3/4( 1.250 2-3/4( 3/4( 2-1/8( 2( 5/16( 1( #10 7/32( .5SB-16 1( 1.500 3-1/4( 1( 2-9/16( 2-1/2( 3/8( 1-3/8( 1/4( 9/32( 1.0SB-20 1-1/4( 1.750 4( 1-1/8( 3( 3( 7/16( 1-3/4( 5/16( 11/32( 2.0SB-24 1-1/2( 2.000 4-3/4( 1-1/4( 3-1/2( 3-1/2( 1/2( 2( 5/16( 11/32( 2.6SB-32 2( 2.500 6( 1-1/2( 4-1/2( 4-1/2( 5/8( 2-5/8( 3/8( 13/32( 4.8

A

D

G

B

BJ

B2 L1

FH1

H

E

H

FC

*Blocks may be reamed to accommodate shafts larger than nominal.† Please note difference in dimension between shaft centerline of rails, blocks and Waymounts.Shimming or blocking is suggested when these are used on a single shaft.

In-Between Shaft Sizes: Waymount supports will accommodate all shaft sizes from approximately 3/8( to 6( diameter. Use the Waymount support size nearest to your particular shaftdiameter. Favor the next largest Waymount support if the shaft size falls midway between two of them. The mean centering height “H” will vary somewhat with different diameter shafts.† Please note difference in dimension between shaft centerline of rails, blocks and Waymount supports. Shimming or blocking is suggested when these are used on a single shaft.

Type ASB Shaft Block. Material: Aluminum Table 48Shaft Nominal Dimension (in.)

Support ShaftBlock Diameter H B1 B2 L1 H1 J F

Number (in.) ±0.001 ±.001 Bolt Hole

ASB-04 1/4 0.500 1.50 .750 0.50 0.88 1.12 #6 0.16ASB-06 3/8 0.562 1.62 .813 0.56 1.00 1.25 #6 0.16ASB-08 1/2 0.875 2.00 1.000 0.63 1.48 1.50 #8 0.19ASB-12 3/4 1.125 2.50 1.250 0.75 1.95 2.00 #10 0.22ASB-16 1 1.375 3.25 1.625 1.00 2.48 2.50 1/4( 0.28ASB-24 1-1/2 2.000 4.75 2.375 1.25 3.50 3.50 5/16( 0.34

Waymount* Supports––Dimensions Table 49

DWaymount RoundWay L H† W A B C E F G J K M N P Weight

Number Diameter (lbs.)

WM-8 1/2( 1-1/2( 1-1/16( 1-3/4( 1/2( 7/8( 1/4( 3/4( 7/32( 8-32 3/64( 3/32( 11/16( 1/2( 7/16( .2WM-16 1( 2( 1-1/2( 2-1/2( 3/4( 1-1/4( 5/16( 1-1/16( 9/32( 1/4(-28 1/16( 1/8( 13/16( 11/16( 11/16( .5WM-24 1-1/2( 2-1/2( 2( 3-1/2( 1-3/16( 1-5/8( 7/16( 1-3/16( 11/32( 5/16(-24 1/8( 1/8( 1( 3/4( 3/4( 1.1WM-32 2( 3( 2-1/2( 4( 1-7/16( 1-7/8( 1/2( 1-3/8( 13/32( 3/8(-24 1/8( 1/8( 1-1/4( 15/16( 1( 1.8WM-48 3( 5( 4-5/16( 6-3/4( 2-3/8( 3-3/8( 3/4( 2-5/8( 21/32( 5/8(-18 1/8( 1/8( 2-1/4( 1-5/8( 1-1/2( 10.2WM-64 4( 6-1/2( 5-7/16( 8-1/2( 3( 4-1/4( 1( 3-1/8( 25/32( 3/4(-16 1/8( 1/8( 2-3/4( 2( 2( 21.2

HOLE SIZE(Base bolt tobe supplied

by customer)

KDG

JH

LE

C

P

F

NM

A BW

TOTALADJUSTMENT

Rough baseBolt

Rough Base

Round Way

HorizontalAdjustment

R- and L-HandThreads

VerticalAdjustment

GTHREAD SIZE

(Shaft-attaching bolt &washer supplied

with Waymount support)

TOTALADJUSTMENT

ROUND WAYDIAMETER

Shaft Support Blocks


36


Metric ShaftSupport Blocks

Flanged Shaft Support BlocksTo be used with Flanged Super Ball Bushing* bearing pillow blocks

.Aluminum Type Table 50ShaftDimensions (mm)Block

Part Number d H H1 H2 A A1 B E N N2 Massh6 ±0,01 ±0,015 ±0,12 (kg)

ASB M08 8 15 28 9 32 16,0 18 22 3,5 M4 0,04ASB M12 12 20 36 13 43 21,5 20 30 5,3 M6 0,10ASB M16 16 25 43 18 53 26,5 24 38 6,6 M8 0,15ASB M20 20 30 51 22 60 30,0 30 42 8,4 M10 0,23ASB M25 25 35 61 26 78 39,0 38 56 10,5 M12 0,41ASB M30 30 40 71 26 87 43,5 40 64 10,5 M12 0,53ASB M40 40 50 88 34 108 54,0 48 82 13,5 M16 0,99

Steel Type Table 51ShaftDimensions (mm)Block

Part Number d H H1 H2 A A1 B E N Massh6 ±0,01 ±0,012 ±0,12 (kg)

SB M08 8 15 27 5,2 32 16 10 25 4,5 0,03SB M12 12 20 35 5,5 42 21 12 32 5,5 0,06SB M16 16 25 42 6,5 50 25 16 40 5,5 0,11SB M20 20 30 50 8,0 60 30 20 45 5,5 0,21SB M25 25 35 58 9,0 74 37 25 60 6,6 0,35SB M30 30 40 68 10,0 84 42 28 68 9,0 0,52SB M40 40 50 86 12,0 108 54 32 86 11,0 0,92

Flanged Aluminum Type Table 52Dimensions (inch)

LinearRace A B C D E F G H IPart Shaft Dia. WeightNumber Class L or S Dim. Tol. Bolt Hole Bolt (lbs.)

FSB8 1/2 1-5/8 .63 1.250 ±.010 7/8 1/2 1 #8 .180 #10-24 x 1.00 1/4 .3FSB12 3/4 2-3/8 .88 1.750 ±.010 1 5/8 1-1/4 #10 .205 1/4-20 x 1.25 5/16 .6FSB16 1 2-3/4 1.06 2.125 ±.010 1-1/4 5/8 1-1/2 1/4 .266 1/4-20 x 1.37 5/16 .8FSB20 1-1/4 3-1/8 1.69 2.375 ±.010 1-3/8 3/4 1-3/4 1/4 .266 5/16-24 x 1.50 3/8 .9

BEG I

CDA

B

C FAH

Note: All dimensions are in inches Type 6061––T6511 Aluminum

Thomson Flanged Shaft Support Blocks Offer:• Perpendicular mounting without the need for special adaptor brackets

• A convenient slot and adjusting screw which allows LinearRace* shafts to be clamped and secured during installation

• A bore which is parallel to the center line of the LinearRace shafts within ± .001(, simplifying alignment

• A high strength, low weight, economical aluminum material alternative to cast iron

• Thru hole mounting for ease of installation

37

60 Case* LinearRace* Shaft DeflectionWhen Thomson 60 Case LinearRace*shafting is used in an end supportedconfiguration it is important to ensurethat 60 Case LinearRace shaft deflec-tions at the bearing locations are keptwithin performance limitations.

These equations give the deflection atthe center of an end supported 60 Case LinearRace shaft. Systemswith continuous 60 Case LinearRace shaft support are not subject to thesame types of deflection.

For more detailed information of thedeflection characteristics of Thomsonlinear motion products contact application engineering.

L1

2L⁄W

D

DEFLECTION AT CENTER (D)

D = WL

3

48 EI——— 5SL

4

384 EI———+

L

D

D = Wa(3L – 4a )2

48 EI—————— +

aa

W—2

W—2

25SL

4

384 EI———

Simply Supported 60 Case LinearRace Shafting with One Block

Simply Supported 60 Case LinearRace Shafting with Two Blocks

LinearRace Shaft Solid TubularDiameter EI S EI S

(In) (lbf• in2) (lbf/in) (lbf• in2) (lbf/in)

.187 1.8 x 10 3 .008 – –

.250 5.8 x 10 3 .014 – –

.375 2.9 x 10 4 .031 – –

.500 9.2 x 10 4 .055 – –

.625 2.3 x 10 5 .086 – –

.750 4.7 x 10 5 .125 4.6 x 10 5 .0751.000 1.5 x 10 6 .222 1.3 x 10 6 .1581.250 3.6 x 10 6 .348 – –1.500 7.5 x 10 6 .500 6.3 x 10 6 .3282.000 2.4 x 10 7 .890 1.9 x 10 7 .5422.500 5.8 x 10 7 1.391 4.2 x 10 7 .7493.000 1.2 x 10 8 2.003 9.3 x 10 7 1.1124.000 3.8 x 10 8 3.560 2.5 x 10 8 1.558

Values for Thomson 60 Case LinearRace shafting

LEGEND:D = Deflection (in)W = Load (lbf)L = Length of unsupported 60 Case LinearRace shaft (in)a = Distance to first bearing with carriage at center position (in)S = Unit weight of LinearRace shaft (lbf/in)E = Modulus of Elasticity (lbf/in

2)I = Moment of inertia of area through diameter of LinearRace shaft (in4)


Request for QuotationCustom Machined Thomson 60 Case* LinearRace* shafting

38

Customer:

Address:

City: State: Zip:

Contact Name:

Phone: Fax:

E-mail:

TEMPLATE NUMBER QUANTITY

1. Send a copy of your drawing or sketch. If you do not have one, select the Thomson 60 Case LinearRace shafttemplate that best matches your requirements.

A. Fill in all available data with tolerances in either inch or metric units.

B. If a feature is not on the template that you are using, add it, and the applicable dimensions.

C. If a feature is not required but is on the template, draw a line through the feature, and mark the dimensionblock with a line or N/A.

D. Make any additional notes to the template to aid in quoting and manufacturing.

2. Fax this information with the template drawing to: Thomson Industries, Inc. Quotation Department:

Fax: 516-883-8049

For any questions or help in determining the best solution to your Thomson 60 Case LinearRace shafting requirements,please contact: Thomson Industries, Inc. Application Engineering at:

Phone: 800-554-THOMSON (1-800-554-8466)E-mail: [email protected]

56

Advantages .......................................................................................................................17

Ball Groove LinearRace* Shafts......................................................................................22

Corrosion Resistance.......................................................................................................10

Cylindricity ..........................................................................................................................6

Deflection ..........................................................................................................................37

Hardness .............................................................................................................................9

Machining, Custom ..............................................................................................11, 25–26

Machining, Custom Templates ..................................................................................38-55

Materials..............................................................................................................................4

Metric LinearRace Shafts ................................................................................................21

Predrilled LinearRace Shafts...........................................................................................21

Preplated Chrome LinearRace Shafts ............................................................................22

QUICK Shafts ....................................................................................................................22

Random Length Shafting ...........................................................................................23–24

Roundness ..........................................................................................................................5

Shaft Rail Assemblies & Supports ............................................................................27–36

Solid Steel LinearRace Shafts .........................................................................................18

Specifications ...................................................................................................................17

Stainless Steel LinearRace Shafts ..................................................................................20

Straightness ..................................................................................................................7, 17

Surface Finish ...............................................................................................................8, 17

Table of Contents ...............................................................................................................3

Tubular ...............................................................................................................................20

INDEX

Precision BallsBrochure covers standard and customprecision balls, guaranteed to meet ABMAstandards. Available in chrome and stainlesssteels; and many special materials––andin the size 0.005( to 1( diameter, in grades3-1000. The Company also offers a full lineof balls in a variety of ferrous, nonferrousand ceramic materials: from 0.0525 in.;and in Grades 10-1,000.

Ball ScrewRepair ServiceBrochure describes ball screw repair servicesfrom Thomson Saginaw that can save you upto 90% of the cost of a new ball screw.Topics include repair capabilities, inspectionprocedures, and special programs such asemergency repairs, training seminars, andpreventive maintenance. Brochure alsoincludes information on how a ball screwoperates and what causes damage and wear.

NEW

Engineered PolymerBearingsDesigner‘s guide includes new technical datato make it easy to select, specify and applyThomson Nyliner* bearings. It includes Nylinerbearing descriptions, application examples,dimensional drawings, specifications and testdata, and installation and operating informa-tion. Guide also contains section on newNyliner Plus* family of bearings made ofadvanced thermoplastics.

Thomson Technology LibraryCall today for free literature 1-800-55-4-THOMSON (1-800-554-8466)

59

ThomsonLinearGuides

The Thomson Industries ManufacturingLocations are ISO 9000 Certified and

operate to QS-9000 Standards

1995, 1996 & 1997

MADEIN THE U.S.A.

Catalog No. 1400-98A$20.00

ISO 9000

Available Immediately Off-The-Shelf

Application Selection Guide Included

Engineering SelectionGuide for Linear GuidesYou’ll find the best solutions where you find thebest alternatives. That is why Thomson hasdeveloped the broadest range of linear guides.Since we don’t favor any particular type, you getthe best recommendation and technology for yourapplication. Call us for objective advice backed byour 53 years of linear guide experience.

NEW

NEWAdvanced Linear MotionTechnology Guide (Metric)Thomsons new metric technology guideprovides engineering support data for themost complete range of RoundRail* linearbearings and pillow blocks in ISO and JISstandards, featuring Super Smart Ball Bushingbearing technology, Miniature Metric BallBushing* bearings and Smart MultiTrac BallBushing* bearings.

Advanced Linear MotionSystems CatalogNew catalog provides the latest linear motionsystems available from Thomson Industries.Thomson systems are available in both imperialand metric sizes for both continuously- or end-supported applications. Drive options includemanual, belt-driven, ball screw-driven, andpneumatic. Catalog also coverssystem accessories, which include radialmounts, hand wheels, brake options, bellows,couplings, and motor mounting blocks.

NEW

Advanced LinearActuator GuideThis technology guide is a complete sourceof information on Thomson Saginaw* ballscrews, including rolled thread assemblies,precision ground assemblies and ball splines.Also included are product descriptions,applications, specifications, design andselection criteria and mounting instructions.

NEW

Advanced Linear MotionTechnology GuideNew 140-page technology guide providescomplete engineering support information forThomson linear motion Ball Bushing* bear-ings and components. Catalog features thenew line of Thomson Super Smart Ball Bush-ing bearings and components which provide216 X the life or 6 X the load, and5 X the LinearRace (shaft) life of conventionalbearings. Other products include Super BallBushing* bearings and pillow blocks, preci-sion steel Ball Bushing* bearings and pillowblocks, XR* Bushing bearings and Round-way* linear roller bearings.

NEW

Advanced Linear MotionProductsThe Thomson Industries Group ofCompanies specializes in the invention,design, development and manufacture oflinear Ball Bushing* bearings; RoundWay*roller bearings; 60 Case* hardened-and-ground LinearRace* shafting; ThomsonSaginaw* and IBL* ball screws and ballsplines; pre-engineered, pre-assembled,ready-to-install RoundRail* linear guides;AccuGlide* linear ball bearing linearguides; AccuMax* linear roller bearinglinear guides; Nyliner* engineered-polymerbearings; precision bearing balls;Thomson Micron precision planetarygearheads and feedback transducers;and related accessories. Thomsonproducts are used worldwide in theautomotive, aerospace, machine tool,machinery and equipment, processcontrol, robotics, automated assembly,material handling, packaging,medical and recreational industries.

Linear Motion Systems ProfileRail Linear Guides

Saginaw and IBL Ball Screws Molded Products

Ball Bushing Bearings andComponents

Precision Balls*Trademark of Thomson Industries, Inc., THOMSON is registeredin the US Patent and Trademark Office and in other countries.© 1998 Thomson Industries, Inc.Printed in U.S.A. TI 02-00-000-6001 TAC 100K 5/98

BULK RATEU.S. POSTAGE

PAIDPORT WASHINGTON, NY

PERMIT NO. 263Thomson Industries, Inc.2 Channel Drive, Port Washington, NY 11050 USA

ISO 9002 Registered Facility • General Motors Supplier of the YearVisit us on the Internet: http://www.thomsonindustries.com

FOR IMMEDIATE ASSISTANCE:

USA, Canada Free =: 1-800-554-8466or Mexico: Fax: 1-516-883-9039Internet: www.thomsonindustries.comE-mail: [email protected]: [email protected]*: 1 (800) 55-4-THOMSON

Europe: =: (44) 1271 334 500Sales Fax: (44) 1271 334 502

UK Free =: 0500 484667Free Fax: 0800 0180889

France: Free =: 0800 90 5721Free Fax: 1800 91 6315

Germany: Free =: 0130 816 553Free Fax: 0130 816 552

Elsewhere: =: 1 (516) 883-8937Fax: 1 (516) 883-7109

or write:Thomson Industries, Inc.2 Channel Drive, Port Washington, NY 11050 USA

60Case Catalog.pdf ID=IqVGop5QCLNEBN3qO500ND1rBxo999hEqDV2QNc8grM 0b&Act View=1&R...

Documents

Transcript of 60Case Catalog.pdf ID=IqVGop5QCLNEBN3qO500ND1rBxo999hEqDV2QNc8grM 0b&Act View=1&R...