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Linear Bushing - Standard, Double[RoHS Compliant] (Part Numbers)

Linear Bushing - Standard, Double[RoHS Compliant]
  • Volume Discount

This is a medium precision linear bushing with relaxed external tolerances such as inner diameter and L dimension.

(i)Caution

  • No seal supplied for dr=3 or 4.
  • Bushings are applied with anti-rust oil harmless to lubricants. After cleaning (recommended cleaning method: ultrasonic cleaner or white kerosene) and drying the bushings, grease application is recommended before use.

Dimensional Drawing of Linear Bushings

Linear Bushing - Standard C-VALUE Double: Related Image
 
Type Linear BushingsOuter CylinderBallsRetainerOperating Ambient Temperature[A] Accessory
[M] Material[M]Hardness[S] Surface Treatment[M] Material[M] Material
Standard SpecificationC-LMUWSUJ2 Equivalent58HRC or moreSUJ2 EquivalentPlastic-20 to 80°CSeal [M] Material
Nitrile Rubber
High Temperature SpecificationsC-LMUWF−NStainless Steel-20 to 120°C
C-LMUWMF−NElectroless Nickel Plating
[ ! ] No seal supplied for high temperature specifications (C-□□F-N).

Specification Table of Linear Bushings

Ordering Example
Part Number (Type, dr)
C-LMUW10
C-LMUWF−N20
 dr D  L BWD1Eccentricity
(Max.)
Balls
Rows
Basic Load RatingAllowable Static
Moment
(N⋅m)
Reference Mass
(g)
   Surface TreatmentSurface Treatment    C (Dynamic) NCo (Static) N
 Tolerance Not ProvidedProvided Tolerance Tolerance
   ToleranceTolerance    
3+0.003
-0.013
7+0.006
-0.013
+0.006
-0.017
19+0.3
-0.6
0.0241382100.513.2
48231762540.634.8
5102818.2
-0.4
1.19.62634121.3811
612+0.006
-0.015
+0.006
-0.020
3524.811.50.033245292.1816
8154532.814.34317844.3131
1019+0.006
-0.018
+0.006
-0.023
5541.41.31858811007.2462
12215743.420657120010.980
13236122813157011.690
16287049.81.62751230235019.7145
20+0.003
-0.015
32+0.006
-0.021
+0.006
-0.027
8057.830.50.041400274026.8180
2540112+0.3
-0.7
78.3
-0.5
1.853861560314043.4440
304512385.3432490549082.8480
35+0.003
-0.018
52+0.006
-0.024
+0.006
-0.032
13594.82.1490.0526506270110795
4060151116.857343080401471170
5080192142.82.676.56080159003973100
kgf = N × 0.101972
[!] No seal supplied for dr = 3 or 4. No Seal Type has lower sliding resistance (0.4 to 1.2 N) and slides smoothly. Separate dust-proofing measures are necessary to keep the dust entering into sliding parts.
[ ! ] Spacers and Stoppers for Linear Bushings can be selected from here.
[ ! ] For shaft and housing tolerances, see "Recommended Tolerance of Shaft Diameter / Housing Diameter."
■Available Sizes of Linear Bushings
SpecificationsStandardHigh Temperature
Surface TreatmentNot ProvidedNot ProvidedProvided
drC-LMUWC-LMUWF−NC-LMUWMF−N
* 3  
* 4  
5
6
8
10
12
13
16
20
25
30
* 35  
* 40  
* 50  
[ ! ] No seal supplied for dr dimension of C-LMUW = 3 or 4.
[ ! ] Only C-LMUW can be selected for dr dimension = 3 or 4.
[ ! ] C-□□□-N cannot be selected for dr* dimension.
■Recommended Tolerance of Shaft Diameter / Housing Diameter of Linear Bushings
drShaft Dia.Housing Dia.
g6 Tolerance Tolerance
3−0.002
−0.008
7+0.021
+0.006
4−0.004
−0.012
8
510
612+0.024
+0.006
8−0.005
−0.014
15
1019+0.027
+0.006
12−0.006
−0.017
21
1323
1628
20−0.007
−0.020
32+0.031
+0.006
2540
3045
35−0.009
−0.025
52+0.036
+0.006
4060
5080

Cautions/Prohibitions of Linear Bushings

■Regular Maintenance of Linear Bushings
(1) For grease lubrication, apply grease to the ball rows within the linear bushings before use, then periodically apply grease during the use.
The grease has an effect of reducing friction by forming a layer between the balls and shaft rolling surfaces, preventing seizures.
Grease loss and deterioration will cause shorter life of linear guides.
(2) Recommended Grease: Lithium soap based grease
(3) Recommended Lubrication Intervals: Every 6 month
Recommended lubrication is that every 3 months when travel distance is extensive, or every 1000 km when travel distance exceeds 1000 km within the period.
(4) If large moment load (offset load) is to be applied, Short / Single Type Linear Bushings are not suitable.
Use of Double Type or Multiple Linear Bushings is recommended.

■Dust-Proofing Measures of Linear Bushings
Please be aware that if foreign objects or dusts get inside the linear bushing, it will interfere with the circulation of the steel balls and cause failures.
Please attach a dust cover or protection cover for harsh usage environments.

■Use of a hardened shaft with g6 tolerance is recommended for MISUMI Linear Bushings.

How to Use of Linear Bushings

IllustrationInstructions for Use
How to UseIf large load (offset load) is to be applied, Single Type Linear Bushings are not suitable. Use of Double Type or Multiple Linear Bushings is recommended.
How to UseLinear Bushings are not suitable for rotating motion due to their structure. Forcing to rotate may cause failures.
How to UseLinear Bushings are not suitable for usage with repetitive insertion and extraction of shafts.
How to UseWhen assembling with linear shafts, forcing the shaft into the bushing with angular misalignment may cause the ball retainers to deform and balls to fall out. Be sure to align the centers and insert the shaft gently.

App. Example of Linear Bushings


▲Example of use in conveyor transfer with air cylinder

Related Products of Linear Bushings

Part Number 

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Part Number
C-LMUW4
C-LMUW5
C-LMUW6
C-LMUW8
C-LMUW10
C-LMUW12
C-LMUW13
C-LMUW16
C-LMUW20
C-LMUW25
C-LMUW30
C-LMUW35
C-LMUW40
C-LMUW50
Part NumberStandard Unit PriceMinimum order quantityVolume DiscountDays to ShipRoHSInscribed Circle Dia. dr
(Ø)
Overall Length L
(mm)
Style Outer Cylinder Surface Treatment Outer Dia. D
(Ø)
Accuracy Ball Recirculating Type Motion Types Eccentricity
(µm)
Basic Load Rating: Dynamic Load (Details)
(N)
Basic Load Rating: Static Load
(N)
Inscribed Circle Dia. Tolerance (Negative Side)
(mm)
Linear Motion / Rotational Motion Basic Rated Load, Dynamic Rating
(N)
Retainer Material Seal Greased Filled

MYR 21.19

1 Piece(s)Available 2 Day(s) 10423StandardNo Surface Treatment8High GradeDoubleLinearStraight20176254-0.013--Plastic (Duracon M90 Equivalent)No SealNot Provided

MYR 16.80

1 Piece(s)Available 1 Day(s) 10528StandardNo Surface Treatment10High GradeDoubleLinearStraight20263412-0.013--Plastic (Duracon M90 Equivalent)With SealNot Provided

MYR 17.10

1 Piece(s)Available 1 Day(s) 10635StandardNo Surface Treatment12High GradeDoubleLinearStraight30324529-0.013--Plastic (Duracon M90 Equivalent)With SealNot Provided

MYR 16.80

1 Piece(s)Available 2 Day(s) 10845StandardNo Surface Treatment15High GradeDoubleLinearStraight30431784-0.013--Plastic (Duracon M90 Equivalent)With SealNot Provided

MYR 16.80

1 Piece(s)Available 2 Day(s) 101055StandardNo Surface Treatment19High GradeDoubleLinearStraight305881100-0.013--Plastic (Duracon M90 Equivalent)With SealNot Provided

MYR 20.26

1 Piece(s)Available 2 Day(s) 101257StandardNo Surface Treatment21High GradeDoubleLinearStraight306571200-0.013--Plastic (Duracon M90 Equivalent)With SealNot Provided

MYR 28.60

1 Piece(s)Available 4 Day(s) or more 101361StandardNo Surface Treatment23High GradeDoubleLinearStraight308131570-0.013--Plastic (Duracon M90 Equivalent)With SealNot Provided

MYR 25.85

1 Piece(s)Available 2 Day(s) 101670StandardNo Surface Treatment28High GradeDoubleLinearStraight3012302350-0.013--Plastic (Duracon M90 Equivalent)With SealNot Provided

MYR 33.55

1 Piece(s)Available 2 Day(s) 102080StandardNo Surface Treatment32High GradeDoubleLinearStraight4014002740-0.015--Plastic (Duracon M90 Equivalent)With SealNot Provided

MYR 47.86

1 Piece(s)Available 2 Day(s) 1025112StandardNo Surface Treatment40High GradeDoubleLinearStraight4015603140-0.015--Plastic (Duracon M90 Equivalent)With SealNot Provided

MYR 81.41

1 Piece(s)Available 4 Day(s) or more 1030123StandardNo Surface Treatment45High GradeDoubleLinearStraight4024905490-0.015--Plastic (Duracon M90 Equivalent)With SealNot Provided

MYR 118.26

1 Piece(s)Available 4 Day(s) or more 1035135StandardNo Surface Treatment52High GradeDoubleLinearStraight5026506270-0.018--Plastic (Duracon M90 Equivalent)With SealNot Provided

MYR 90.74

1 Piece(s)Available 2 Day(s) 1040151StandardNo Surface Treatment60High GradeDoubleLinearStraight5034308040-0.018--Plastic (Duracon M90 Equivalent)With SealNot Provided

MYR 112.99

1 Piece(s)Available 2 Day(s) 1050192StandardNo Surface Treatment80High GradeDoubleLinearStraight50608015900-0.018--Plastic (Duracon M90 Equivalent)With SealNot Provided

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  1. 1

Basic Information

Type Straight Outer Cylinder Material SUJ2 Equivalent Lubrication Type Not Provided
Length Double Ball Material SUJ2 Equivalent

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