Post on 09-Aug-2020
CAT-57143June 2008 Overseas Dept.
Micro Linear WayMicro Linear Way
U.S. PATENTED
CAT-57143June 2008 Overseas Dept.
Micro Linear WayMicro Linear Way
U.S. PATENTED
LWL2
LWL1···Y LWL1
21
Micro Linear Way L for downsizing your machinesMicro Linear Way L for downsizing your machines
Stainless Steel made Special Grease /Y
Stainless made End Plate /BS
Structure of Micro Linear Way L
LWL1···Y (The smallest size)
Micro Linear Way is the smallest linear motion rolling guide having precise and smooth motion developed by ’s original miniature technology.
Track rail width can be chosen from 1mm to 6mm and that suites to precise positioning in your micro machine.
Casing
Steel Balls
End Plate
Slide Unit
Track Rail
Tapped mounting hole typetrack rail
Non-mounting hole typetrack rail
Also Low profile holeless track rail is available.
The track rail can be fixed correctly by using prepared female threads.
Micro Linear Way LWL is suitable for optical fiber communication device, medical equipments, semiconductor manufacturing system, liquid crystal display manufacturing process, etc.
Micro Linear Way LWL is suitable for optical fiber communication device, medical equipments, semiconductor manufacturing system, liquid crystal display manufacturing process, etc.
Simple two-row and four-points contact is necessary for micro sizing.
Simple two-row and four-points contact design mini-mizes the number of potential errors in manufacturing. High level of accuracy control is possible.
Slide unitTrack rail
Four points contact
Simple structure for controlling accuracy and micro-sizing
For special specification
No. 5,435,649No. 5,289,779No. 5,250,126No. 4,652,147
No. 4,505,522No. 6,176,617No. 6,082,899No. 5,967,667
U.S. PatentAll Linear Way features unique design in which large diameter steel balls contacting raceways at four points each are arranged in two rows. High level of accuracy, even in Micro Linear Way, is realized by ’s all of accumulated linear motion technology and this simple structure.
All products are made by stainless steel which is highly corrosion resistance. This is suitable for the use in clean rooms and places where rust preven-tive oil should be avoided or kept to a minimum.
The standard end plate made by resin can be replaced with stainless steel made end plate.It is suitable for vacuum and high temperature application. Applicable to size 2 and 3.
Several greases for clean room application are available. For size 3 and 6, specify a grease by supplemental code if necessary.
1
4 6 8
4.2 2.5
3.2 4
1 2
4
4 4.5
10 12
3 4 6unit: mm
43
Standard type Wide type
LWL2 LWL3 LWLF4 LWLF6LWL1
Short
Standard
Linear Ball Spline GLSAG 2, LSAGF 2
Miniature Stroke Rotary BushingSTSI 2
Miniature Cam FollowerCFS 1.4
Using as through hole(Required bolt size is M1.0)
Using female thread(Required bolt size is M1.4)
Accuracy is as high as larger size Linear Ways.
Two female threads are prepared on the top surface of slide unit.
Mounting method (for tapped track rail specification LWL1···Y)
1.4mm
0.5mm
0.5mm pen tip of mechanical pencil
Super micro 1mm width will take you onto a “Fantastic Voyage”
Track rail width; 1mm to 6mm are available.
Standard type and wide type are available. Wide type is suitable for single row rail arrangement.
Two kinds of track rails, through mounting holes type and female thread mounting holes type, are available.
Standard length slide unit and short type slide unit are available in the same sectional dimension.
Wide variationThere is a great variation in sizes and shapes. The best specification can be selected to suite each machine and equipment.
Applicable to size 4 and 6 Applicable to size 2, 3 and 6 Applicable to size 1 Applicable to size 1
Standard track rail Tapped track rail Tapped track rail (Lateral) Holeless track rail
Shape of track rail
Cross section(Full-scale)
Length of slide unit (Full-scale)
The ultimate miniature technology for super micro machine
Spline shaft diameter: 2mm Shaft diameter: 2mm Stud diameter: 1.4mm
Other micro series are also available.Please consult for future information.
Micro Linear Way LWL
All dimensional tolerances are strictly controlled with the original precision manufacturing technology. This is the smallest linear motion rolling guide for the places where compactness and high accuracy are required. H
N1
C
N2
D1 D2A
B
LWL1…YTapped track rail specification
Two fixing bolts help proper alignment.Both side surfaces of slide unit can be used as reference surfaces, thus universal mounting is possible.
For track rail width 1mm, female threads are prepared for lateral mounting and track rail can be fixed easily and correctly.
Female Threads
Applicable special specifications are shown in Table 4 on
page 8. Special specification is not applicable for size 1.
Indicate the number of slide units assembled on one
track rail.
Indicate the length of track rail in mm. For standard and
maximum lengths, see "Track rail length" in Table 15 on
page 15.
Applicable preload for Micro Linear Way LWL is only To
preload. It is zero or minimal amount of clearance.
Accuracy code is applicable for size 2 or over and not
applicable for size 1. (No symbol)
For applicable accuracy, see Table 2 and Table 3 on
page 7.
1N=0.102kgf=0.2248lbs.1mm=0.03937inch
Identification Number
5
The specification of Micro Linear Way LWL is specified by theidentification number, which consists of a model code, a size,a part code, a preload symbol, a classification symbol,interchangeable code and special supplemental codes.
Example of identification number
LWL C1 R42 Y
LWLF C2 R120 T0
T0
P /DC
1
6
Series
Size
Number of slide unit
Length of track rail
Preload amount
Accuracy class
Model codeLength of slide unit
Structure
Size
Part code
Preloadsymbol
Classificationsymbol
Supplementalcode
1
2
3
4
5
6
7
8
Size 1
Size 2 or over
6
Series●1
Structure●3
Size●4
Number of slide unit●5
Length of track rail●6
Standard type :LWL
Wide type :LWLF
Preload●7
Accuracy code●8
Special specifications●9
Length of slide unit●2Short :C
Standard :Non symbol
C○
R○
Clearance :T0
High class :HPrecision class :P
/BS, /D, /E, /Ⅰ, /MN, /W○, /Y○
StandardTapped track rail specification :Non symbol, YNon-mounting hole type
track rail specification :Non symbolWide type
Tapped track rail specification :Non symbolNon-mounting hole type
track rail specification :N
1, 2, 3, 4 and 6
Applicable type and size are shown in Table 1.
Table1 Type and size of Micro Linear Way LWL
Standardtype
MaterialSeries
Stainless steel
Tapped track railspecification
Non-mounting hole typetrack rail specification
Structure1
-
-
○
○
-
○
-
-
○
○
-
-
2 3
Size
Short
Standard
Standard
Length of theslide unit
LWLC
LWL
LWL…Y
LWL
Model code
Wide type
MaterialSeries
Stainless steel
Standard rail specification
Tapped track railspecification
Structure4
-
○
-
-
○
○
○
○
6
Size
Short
Standard
Short
Standard
Length of theslide unit
LWLFC
LWLF
LWLFC…N
LWLF…N
Model code
Special specification9
1N=0.102kgf=0.2248lbs.1mm=0.03937inch
/BS
/D
/E
/Ⅰ
/MN
/W○
/Y○
87
Accuracy
Accuracy of Micro Linear Way LWL is show in Table 2 and 3.
Table 2 Accuracy of Micro Linear Way LWL(for LWL1-Y)
Fig. 1 Parallelism in operation of Micro Linear Way LWL (Size 2 or larger)
Classification (Symbol)
Item
Dim. H tolerance
Dim N tolerance
Dim. Variation of H (1)
Dim. Variation of N (1)
±0.020
±0.025
0.015
0.020
±0.010
±0.015
0.007
0.010
See Fig.1
See Fig.1
High(H)
Precision(P)
Note(1): It means the size variation between slide units mounted on thesame track rail.
Parallelism in operation of C to A
Parallelism in operation of D to B
Table 3 Accuracy of Micro Linear Way LWL(for LWL2 and larger sizes)
unit: mm
Special Specifications
Micro Linear Way LWL series with the special specificationsshown in Table 4 are optionally available for var iousapplications. When ordering, add any supplemental codesonto the identification number. If a combination of specialspecifications is required (See Table 5), indicate thesupplemental codes in alphabetical order. These optionalitems can be combined to achieve further improvements inperformance. These special specifications are not available tosize 1.
Table 4 Applicable specifications
Table 5 Combination of special specifications
Specifications Supplementalcode
With stainless steel end plate (1)
Opposite reference surface arrangement
Specified rail mounting hole positions
Appending inspection sheet
Without track rail mounting bolts (1)
Matched sets to be used as an assembled group
Specified grease
Remark: In the table, the mark ○ indicates that this combination can be made.
Note(1): Applicable to size 2 and 3.(2): Applicable to size 4 and 6.(3): In size 2 and 4, only /YNG can be chosen.
Specified track rail mounting hole positions /E
The mounting hole positions of track rail can be specified byspecifying dimension E at the left end, which is the distance from themounting hole nearest to the left end of the track rail to the left endface of the track rail in sight of mark on the slide unit.When ordering, add the dimension (in mm) after "/E". Dimension E
can be specified in a limited range. Consult for furtherinformation.
With inspection sheet /ⅠThe inspection sheet recording dimensions H and N (See "Accuracy"),dimensional variations of H and N, and parallelism in operation of theslide unit is attached to each set.
Without track rail mounting bolts /MNTrack rail mounting bolts are not appended.(Applicable to sizes 4 and 6)
Opposite reference surfaces arrangement /D
The reference mounting surface of track rail is made opposite to thestandard side. The accuracy of dimension N including parallelism inoperation is the same with that of standard specification.
Matched sets to be used as an assembled group /W
For two or more sets of Micro Linear Way LWL used on the sameplane, the dimensional variation of H of Micro Linear Way LWL is keptwithin the specified range. The dimensional variation of dimension Hin matched sets in the same as that of single set. Indicate the numberof sets after "/W".
Specified grease /YCG /YCL /YBR /YNG
The type of pre-packed grease in the slide unit can be changed by asupplemental code.●1 /YCG Low Dust Generation Grease for Clean Environment
CG2 is pre-packed.●2 /YCL Low Dust Generation Grease for Clean Environment
CGL is pre-packed.●3 /YBR MOLYKOTE BR-2 PLUS Grease (Dow Corning) is pre-
packed.●4 /YNG No grease is pre-packed.
Note: For sizes 2 and 4, only /YNG is applicable.
±0.020
±0.025
ToleranceItem
Dim. H tolerance
Dim. N1 and N2 tolerance
unit: mm
D
E
Ⅰ
MN
W
Y
○
○
○
○
○
○
-
○
○
○
○
○
○
-
○
○
○
○
○
○ ○
BS D E Ⅰ MN W
With stainless steel end plates /BSThe standard synthetic resin end plates are replaced to stainlessmaterial, keeping the total length of slide unit unchanged. Thisspecification (for size 2 and 3) is recommended for high temperatureand vacuum conditions.
1 ~1.2
1.2 ~1.5
1.5 ~3
Smooth operation free fromvibration and/or shocks
Normal operation
Operation with shock loads
1N=0.102kgf=0.2248lbs.1mm=0.03937inch 10
From the converted downward and lateral load, mean
equivalent dynamic load must be corrected by the following
formula.
P=XF re +YFae……………………………………………(6)
where, P :Mean equivalent dynamic load, N
X,Y :Mean equivalent dynamic load factor
(See Table 9)
F re :Converted downward load, N
Fae :Converted lateral load, N
9
Table 9 Mean equivalent dynamic load factor
Condition
|F re|≧|Fae|
|F re|<|Fae|
1
0.6
0.6
1
X Y
Life
The rating life of Micro Linear Way LWL series is obtainedfrom the following calculation formula.
where, L :Rating life, 103m
C :Basic dynamic load rating, N
P :Dynamic equivalent load, N
If the stroke length and the number or strokes per minute are
known, the life in hours must be calculated by the following
formula.
where, Lh :Rating life in hours, hours
S :Stroke length mm
n1:Number of strokes per minute cpm
Static safety factor
The static safety factor fS of Micro Linear Way LWL is given inthe following formula, and general values of this factor areshown in Table 6.
where, fS:Static safety factor
C0:Basic static load rating, N
P0:Static equivalent load, N
L=50 …………………………………………………(1)
Lh= ……………………………………………(2)
fS= ………………………………………………………(3)
106L2Sn1×60
C0P0
CP( )
3
Conditions f W
Table 7 Load factor
Table 6 Static safety factor
Operating conditions
3 ~5
2 ~4
1 ~3
fS
Load factor
Actual loads applied to the linear motion rolling guidesometimes exceed the theoretically calculated load due tovibration and shocks caused by machine operation. Theactual life is calculated by multiplying the theoretical load bythe load factor indicated in Table 7.
0.84
ka
Dynamic equivalent load for rating life
When a load is applied in a direction other than that of thebasic dynamic load rating of Linear Way or a complex load isapplied, the dynamic equivalent load must be calculated toobtain the basic rating life. Obtain the downward and lateralconversion loads from the loads and moments in variousdirections.
where, Fre :Downward conversion load, N
Fae:Lateral conversion load, N
Fr :Downward load, N
Fa :Lateral load, N
M0:T0 moment, N・m
MX:TX moment, N・m
MY:TY moment, N・m
k r, ka:Conversion factor by load direction
(See Table 8)
C0 :Basic static load rating, N
T0 :T0 static moment, N・m
TX :TX static moment, N・m
TY :TY static moment, N・m
F re=k r F r + M0 + MX …………………………(4)C0T0
C0TX
Fae=ka Fa + MY ……………………………………(5)C0TY
Table 8 Conversion factor by load direction
Condition
Fr ≧ 0
Fr < 0
1
1
Conversion factor
k r
Load Rating and Life
Basic dynamic load rating C
The basic dynamic load rating is defined as a constant loadboth in direction and magnitude under which a group ofidentical Micro Linear Way LWL series are individuallyoperated and 90% of those in the group can travel 50×103 m
free from material damage due to rolling contact fatigue.
Basic static load rating C 0
The basic static load rating is defined as a static load thatgives a prescribed constant contact stress at the center of thecontact area between roll ing elements and racewaysreceiving the maximum load.It is the allowable limit load that permits normal rolling motion.Generally, the basic static load rating is used in combinationwith the static safety factor.
Static moment rating T0, TX, TY
The static moment rating is defined as a static moment load(See Fig.3) that gives a prescribed constant contact stress atthe center of the contact area between rolling elements andraceways receiving the maximum load.The static moment rating is used in combination with thestatic safety factor to give the limiting load for normal rollingmotion.
Fig. 2 Direction of load rating
Fig. 3 Direction of static moment rating
Operation with vibrationand/or shocks
High operating performance
Normal operation
Side surface above themark (in the direction
of the arrow. See Fig.5.2)
1N=0.102kgf=0.2248lbs.1mm=0.03937inch 1211
Static equivalent load for static safety factor
When a load is applied in a direction other than that of thebasic static load rating of Linear Way or a complex load isapplied, the static equivalent load must be calculated toobtain the static safety factor.From each directional load, conver ted load equal todownward or lateral is given by following formula.
where, P0 :Static equivalent load, N
F r :Downward load, N
Fa :Lateral load, N
M0:T0 moment, N・m
MX:TX moment, N・m
MY:TY moment, N・m
k0r, k0a:Conversion factor by load direction
(See Table 10)
C0 :Basic static load rating, N
T0 :T0 static moment, N・m
TX :TX static moment, N・m
TY :TY static moment, N・m
Quality lithium-soap base grease (MULTEMP PS No.2:KYODO YUSHI) is pre-packed in Micro Linear Way LWL.The quality of any grease will gradually deteriorate asoperating time passes. Therefore, periodic re-lubrication isnecessary. The re-lubrication interval varies depending onthe operating conditions of the rolling guides. A six monthsinterval of generally recommended and, if the machineoperation consists of reciprocating motions with many cyclesand long strokes, re-lubrication every three months isrecommended.Micro Linear Way LWL does not have oil hole thus, greasemust be directly applied on the raceways of track rail.Miniature Grease Injector is available and please consult
if necessary.After grease is replenished, running in is performed andexcess grease will be discharged from the inside of rollingguide. Discharged grease must then be removed beforestarting the operation. Low and stable friction can beobtained after ten to twenty times of manual strokes. It ispossible to reduce the amount of grease to make frictionalresistance lower. But careful attention is necessary to keepminimum amount of lubricant strictly for the product safety.Micro Linear Way LWL does not have end seals. When it isused in places except clean environment, preparing dustprotection cover is recommended to avoid intruding harmfuldust and particles from outside.
P0=k0r|F r|+k0a|Fa|+ |M0|+ |MX|+ |MY|…(7)C0TX
C0TY
C0T0
Table 10 Conversion factor by load direction
Condition
F r < 0 1
10.84
Conversion factor
k0r
F r ≧ 0
k0a
Modelnumber Slide unit Track rail
LWL1
LWL1…Y
Either side is possible.(See Fig.5.1)
-
LWL2or larger
Opposite tomark.
(See Fig.5.2)
Opposite to mark.(See Fig.5.1)
Lubrication and DustProtection
Precautions for Use
●1 Mounting surface, reference mounting surface, andgeneral mounting structureTo mount Micro Linear Way LWL, correctly fit the referencemounting surfaces B and D (D1 or D2) of the slide unit andtrack rail to the reference mounting surfaces of the table andthe bed, and then fix them tightly. (See Fig.4.3) In size 1, reference surfaces are available to both side ofslide unit. (D1 and D2)Track rail of LWL1-Y can be mounted in lateral direction.Two kinds of mounting methods can be chosen. (See Fig.4.1and 4.2)The reference mounting surfaces B and D (D1 and D2) andthe mounting surfaces A and C of Micro Linear Way LWL areaccurately finished by grinding. Stable and high accuracyliner motion can be obtained by finishing the mating mountingsurfaces of machines or equipment with high accuracy andcorrectly mounting the guide on these surfaces.Reference mounting surfaces of slide unit and track rail areshown in Table 11.
Fig. 4.3 Reference mounting surface and general mounting structure of LWL2 or larger
Fig. 5.1 Reference mounting surface of LWL1
Fig. 5.2 Reference mounting surface ofLWL2 or larger
Fig. 4.2 Reference mounting surface and generalmounting structureⅡof LWL1···Y
Table 11 Reference mounting surface of slide unit and track rail
Fig. 4.1 Reference mounting surface and generalmounting structureⅠof LWL1···Y
Mounting
141N=0.102kgf=0.2248lbs.1mm=0.03937inch13
Table 12 Shoulder height for the reference mountingsurface of slide unit
Model numberShoulder height for slide unit
h1
LWL 1
LWL 2
LWLC 3, LWL 3
LWLF 4
LWLFC 6, LWLF 6
1.3
1
1.2
1.5
2
unit: mm
Table 13 Shoulder height for the reference mountingsurface of track rail
Model numberShoulder height for track rail
h2
LWL 1…Y
LWL 2
LWLC 3, LWL 3
LWLF 4
LWLFC 6, LWLF 6
2
0.5
0.8
0.8
0.8
unit: mm
Remark: For LWL1, prepare the reference mounting surface not tointerference with slide unit.
●2 Female threads for mounting the slide unit and trackrail are through holes.If the fixing depth of the mounting bolts is too long, the boltswill interfere with the slide unit or track rail, resulting in poortraveling accuracy and short life. The fixing depth of themounting bolts should be kept within the values shown in thetable of dimensions. Also, small head (less than 1.8mm)screw for precision equipment is recommended for mountingof size 1. ●3 The mounting bolts for track rail are not appended.For sizes 2 and 3, prepare bolts with a fixing depth notexceeding H4 shown in the dimension table.●4 Corner radius and shoulder height of referencemounting surfacesIt is recommended to make a relieved fillet at the corner ofthe mating reference mounting surface as shown in Fig.4.1and Fig. 4.2.Table 12 and Table 13 show recommended shoulder heightand radius of the reference mounting surfaces.
●5 Multiple slide units mounted in close distanceWhen using multiple slide units in close distance to eachother, actual load may be greater than the calculated loaddepending on the mounting accuracy of the slide units on themounting surfaces and the reference mounting surfaces ofthe machines. It is suggested in such cases to assume agreater load than the calculated load.
●6 Operating temperatureThe maximum operating temperature is 120°C and acontinuous operation is possible at temperatures up to 100°C.When the temperature exceeds 100°C, consult .
Bolt size
Tightening torque N-m
Stainless steel bolt(Property division A2-70)
M1 × 0.25
M1.4 × 0.3
M1.6 × 0.35
M2 × 0.4
0.04
0.10
0.15
0.31
Table 14 Tightening torque of mounting bolts●1 When assembling two or more setsUse an assembly of slide unit and track rail as deliveredwithout changing the combination.Matched sets to be used as an assembled groupSpecial specif ication products of matched sets (bysupplemental code"/W") are delivered as a group in whichdimensional variations are specially controlled. Mount themwithout mixing with the sets of another group.●2 Assembling a slide unit and a track railWhen assembling Micro Linear Way LWL, correctly fit thegroove of the slide unit mounted on a steel ball holder to thegroove of the track rail, and then move the slide unit gentlyfrom the steel ball holder to the track rail in parallel direction.Steel balls are not retained in Micro Linear Way, so usingsteel ball holder is necessary when re-assemble the slide unitfrom the track rail.For sizes 2 or larger, a steel ball holder is appended as anaccessory. ●3 Cleaning the mounting surfacesWhen mounting Micro Linear Way LWL, first clean allmounting and reference mounting surfaces. (See Fig.7)Remove burrs and blemishes from the reference mountingsurfaces and mounting surfaces of the machine using an oil-stone, etc., and then wipe the surfaces with clean cloth.
●4 Tightening torque of mounting boltsThe standard torque values for Micro Linear Way mountingbolts are shown in Table 14. When machines or equipmentare subjected to serve vibration, shock, large fluctuating load,or moment load, the bolts should be tightened with a torque1.2 to 1.5 times higher than the standard torque valuesshown. When the mating member material is cast iron oraluminum, tightening torque should be lowered in accordancewith strength characteristics of the material.
Fig. 7 Cleaning of mounting surfaces
Remark: Tightening torque for LWL1 is recommended to be 70 to 80% ofthe values in the table.
M1
M1.4
M1.6
M2
Nominal size dPitch of screw P
0.25
0.3
0.35
0.4
dk
1.8
2.5
2.8
3.5
k
0.45
0.8
0.85
1
l
3, 4, 5
2.5, 3, 4
4, 5, 6
3, 4, 5
Boundary dimension
Mounting Bolts
161N=0.102kgf=0.2248lbs.1mm=0.03937inch
Track Rail Lengths
15
Standard and maximum lengths of track rails of Micro LinearWay LWL are shown in Table 15.Track rail in any length are also available. Simply indicate thenecessary length of track rail in millimeter (mm) in theidentification number.E-dimensions at both ends are the same unless otherwisespecified. To change these dimensions, specify the specifiedrail mounting hole positions (supplemental code "/E") ofspecial specification.
For Micro Linear Way LWL, fixing bolts for slide unit andtapped track rail are available as shown in Table 16.1 andTable 16.2. Consult .
Table 15 Standard and maximum lengths of track rail
Maximum length(1)
Mounting hole pitch F
E
Standard length L(n)
Note(1): The track rails can be manufactured up to the maximum length shown in parentheses. If required, please consult .Remarks: The above table shows representative model numbers but is applicable to all models of the same size.
Model number
ItemLWL 1…Y LWL 1 LWL 2 LWL 3 LWLF 4 LWLF 6
18( 3)
30( 5)
42( 7)
18(- )
30(- )
42(- )
32( 4)
40( 5)
56( 7)
80(10)
30( 3)
40( 4)
60( 6)
80( 8)
100(10)
40( 4)
60( 6)
70( 7)
80( 8)
100(10)
60( 4)
90( 6)
105( 7)
120( 8)
150(10)
102 102 104(200)
150(300)
180(300)
240(300)
6
3
2.5
5.5
-
-
-
-
8
4
2.5
6.5
10
5
3
8
10
5
3.5
8.5
15
7.5
4.5
12
Table 16.1 Cross-recessed head cap screw for precision equipment
unit: mm
unit: mm
Remark: They differ from appended track rail mounting bolt.
M1.4
M1.6(1)
M2(1)
Nominal size dPitch of screw P
0.3
0.35
0.4
dk
2.6
3
3.8
1.4
1.6
2
1.3
1.5
1.5
0.6
0.7
1
2.5, 3, 4
4, 5, 6
3, 4, 5
k s t l
Boundary dimension
Table 16.2 Hexagon socket head bolt
Note(1): They conform to JIS 1176. (Japanese Industrial Standard)
unit: mm
Standard range of EOver (Incl.)
Under
Example of identification number for assembled set
1N=0.102kgf=0.2248lbs.1mm=0.03937inch
3.1
1.4
2
2.6
2.6
2.8
1.1
-
-
-
-
-
1817
1.2
-
-
-
-
M1 ×0.9
M1.4×1.4
M1.6×1.3
M2 ×1.3
M2 ×1.3
M2 ×1.6
1
2
2.6
2.6
2.8
Micro Linear Way LWL
L2 L3 M1×depth H2
Mass (Reference)g
Dimension ofassembly
mm
Dimension of slide unit mm Dimension of track rail mm Appended mountingbolt for track rail
mmBolt size× lengthSlide
unitTrack rail
(per 100mm) H H1 N W2 L1
0.16
0.9
1.0
1.6
2.1
2.4
3.4
2.1
1.0
2.8
5.3
6.8
13
12
13
12
4.2
2.5
3.2
4
4
4.5
2.2
0.5
0.7
1
1
1
1.5
2
2.5
3
3
4
6
8
10
12
6.5
12.4
12
16
17
15
20
3.9
8.8
6.7
10.7
11.9
9.8
14.6
2
4
3.5
5.5
6.5
4.5
8
Model number
LWL 1…Y
LWL 1
LWL 2
LWLC 3
LWL 3
LWLF 4
LWLFC 6
LWLFC 6…N
LWLF 6
LWLF 6…N
W H4 H5
M1.4Through
-
M1Through
M1.6Through
-
-
M3Through
-
M3Through
M2
1.1
-
-
-
1.8
2.4
-
2.4
-
d3
-
-
-
2.8
4
-
4
-
d4
-
-
-
0.75
1.5
-
1.5
-
h
3
-
4
5
5
7.5
E
6
-
8
10
10
10
M1×Ror M1.4×R(2)(Not appended)
-
M1×R(3)(Not appended)
M1.6×R(3)(Not appended)
Cross-recessed head screwfor precision equipment
M1.6×5
Cross-recessed headscrew for precision
equipment
M2×4
F
Basicdynamicloadrating(4)
C
N
Basicstaticloadrating(4)
C0
N
Static moment rating
Model numberT0
N・m
TX
N・m
TY
N・m
66.8
211
251
353
390
334
443
113
381
361
587
677
542
813
0.06
0.42
0.58
0.94
1.4
1.7
2.5
0.07
0.47
0.54
2.9
0.39
2.9
0.98
5.9
1.3
7.1
0.84
5.1
1.8
9.9
0.09
0.56
0.64
3.4
0.47
3.4
1.2
7.0
1.5
8.4
1.0
6.1
2.2
11.8
LWL 1…Y
LWL 1
LWL 2
LWLC 3
LWL 3
LWLF 4
LWLFC 6
LWLFC 6…N
LWLF 6
LWLF 6…N
Note(1): Track rail lengths L are shown in Table 15.(2): Bolt is required suit to mounting structure.(3): Prepare track rail mounting bolts with a fixing depth less than H4. (4): The directions of basic dynamic load rating (C), basic static load rating (C0) and static moment rating (T0, TX and TY) are shown in the sketches
below. The upper values in the TX and TY column apply to one slide unit, and the lower values apply to two units in close contact.Remarks:1. Steel parts are made of stainless steel.
2. Steel balls are not retained. End seals are not attached.3. For LWLF4, LWLFC6 and LWLF6, stainless cross-recessed head screw for precision equipment is appended for fixing track rail. Please
indicate supplemental code /MN if unnecessary.
LWLC・LWL・LWLFC・LWLF
LWLFC 6 C2 R120 T0 P /D
Model code
Size
N
Number of slide unit(Two slide units)
Length of track rail (120mm)
LWLLWL …YLWLCLWLFLWLF …NLWLFCLWLFC…N
Preload amount
T0:Clearance
Special specification
Opposite reference surfacesarrangement / D
Accuracy class
No symbol(for LWL1)H:HighP:Precision
LWL1…Y
LWL 2
LWLC 3
LWL 3
LWLF 4
LWLFC 6
LWLF 6
Tapped track rail
LWLFC 6…N
LWLF 6…NNon-mounting hole type track rail
LWL1
CAT-57155
19 20
Precise ball retainer is incorporated and non-circulation structure pro-vide superior low friction even in the vertical operation.
Large diameter steel balls are arranged in two rows and in four point contact with the raceways, achieving compact design with high rigidity under any direction of load and moment.
LSLSLS
Main Body
Spline Shaft
Steel Balls
Retainer
Stop Ring
Stroke Ball Spline
Compact design with high rigidity
Unprecedented smoothness
Compact design with high rigidity
Unprecedented smoothness
Linear Ball Spline G LSAG(Unlimited Stroke Length)
Stroke Ball Spline LS(Limited Stroke Length)
鋼 球Travel length of cage × 2 = Effective stroke
Four Point Contact
This is our new output for the manufacturing pro-
cess of semiconductor and liquid crystal display
requires high speed and high acceleration.
As a regular leader of this industrial field……….
External Cylinder
By applying suitable preload, clearance in the rotational direction is eliminated. So high positioning accuracy in the rotational direction has been obtained.
Superior positioning accuracy
Four Point Contact
Stroke direction of external cylinder
Stroke direction of external cylinder
Steel Balls
Available shaft diameter: 4mm to 6mm Available shaft diameter: 2mm to 50mm
Allowable stroke length
World Network of
2221
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IKO INTERNATIONAL, INC.NIPPON THOMPSON CO., LTD.
IKO-THOMPSON (SHANGHAI) LTD.
NIPPON THOMPSON EUROPE B.V.
ISO 9001 & 14001 Quality system registration certificate
Recognizing that conservation of the global environment is the top-priority challenge for the world’ s population, will conduct its activities with consideration of the environment as a corporate social responsibility, reduce its negative impact on the environment, and help foster a rich global environment.
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