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Linear Bushing - Standard, Single[RoHS Compliant] (C-LMUM30)

Linear Bushing - Standard, Single[RoHS Compliant] C-LMUM30
  • Volume Discount

MISUMI

MiSUMi Economy

MISUMI

RoHS10 compliant.
Linear Bushings - Standard, Single
The linear bushing supports and guides a load, enabling smooth and accurate linear motion along a specified path. It provides a variety of sizes to choose from.
[Feature]
● Support Shaft Diameter Minimum/Maximum (mm.): 3 and 50
● Overall Length Minimum/Maximum (mm.): 10 and 100
● Shape : Straight
● Material:
- Outer Cylinder - SUJ2 Equivalent
- Ball - SUJ2 Equivalent
[Application]
It is used in industrial machinery such as conveyor systems, packaging machines, and robotic equipment.

(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.
  • Some of the current product code is scheduled to be discontinued by end of Jul 2025.
    We apologize for the inconvenience. Similar alternative products will be posted after the date.

Part Number

Configured Part Number is shown.

C-LMUM30

Dimensional Drawing of Linear Bushings

Linear Bushing - Standard C-VALUE Single: Related Image
Type Linear BushingsOuter CylinderBallsRetainerOperating Ambient Temperature[A] Accessory
[M] Material[M]Hardness[S] Surface Treatment[M] Material[M] Material
Standard SpecificationC-LMUSUJ2 Equivalent58HRC or more—SUJ2 EquivalentPlastic－20 to 80°CSeal [M] Material
Nitrile Rubber
C-LMUMElectroless Nickel Plating
C-LMU−N—-
High Temperature SpecificationsC-LMUF−NStainless Steel－20 to 120°C
C-LMUMF-NElectroless Nickel Plating
[ ! ] No seal supplied for C-□□□-N.

Specification Table of Linear Bushings

Ordering Example
Part Number (Type, dr)
C-LMU6
C-LMUF−N20
 dr D  L BWD1Eccentricity
(Max.)		Balls
Rows		Basic Load RatingReference Mass
(g)
   Surface TreatmentSurface Treatment    C (Dynamic) NCo (Static) N
 Tolerance Not ProvidedProvided Tolerance Tolerance
   ToleranceTolerance    
3+0.003
-0.011		7+0.006
-0.011		+0.006
-0.017		10+0.1
-0.2		————0.0164691051.4
4812881272
5101580 
-0.4		1.19.61672064
6+0.003
-0.012		12+0.006+0.00619+0.2
-0.4		11.311.50.0242062658.5
815-0.013-0.0202415.314.326538017
1019+0.006
-0.015		+0.006
-0.023		2919.41.31837254931
12213020.42041259841
1323322251078446
16283723.31.6275775118073
20+0.003
-0.013		32+0.006
-0.018		+0.006
-0.027		4227.330.50.030882137098
254059+0.2
-0.5		37.30 
-0.5		1.853869801570236
30456440.84315702740262
35+0.003
-0.015		52+0.006
-0.021		+0.006
-0.032		7045.32.1490.04016703140425
40608056.35721604020654
508010068.82.676.5382079401700
[!] No seal supplied for dr dimension = 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 intosliding 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 ProvidedProvidedNot ProvidedProvided
drC-LMUC-LMU−NC-LMUMC-LMUF−NC-LMUMF-N
* 3●    
* 4●    
5●●●●●
6●●●●●
8●●●●●
10●●●●●
12●●●●●
13●●●●●
16●●●●●
20●●●●●
25●●●●●
30●●●●●
* 35● ●  
* 40● ●  
* 50● ●  
[ ! ] No seal supplied for dr dimension of C-LMU = 3 or 4.
[ ! ] Only C-LMU 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

▲Oil Seal Press Fitting Jig  

Related Products of Linear Bushings

[Economy Series / Large Quantity Order Super-Discount]
Linear Bushings - Standard, Double		 [Economy Series / Large Quantity Order Super-Discount]
Flanged Linear Bushings - Standard, Single		 [Economy Series / Large Quantity Order Super-Discount]
Flanged Linear Bushings - Standard, Double
Related Products Related Products Related Products

Part Number 

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30
45
60
  1. 1
Part Number
C-LMUM30
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 25.74

1 Piece(s) 11 Day(s) 10---[Surface Treatment] Electroless Nickel Plating----Standard Flange30-2740-0.013Linear Bushing (Linear Motion Only)1570PlasticWith Seal-

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  1. 1

Basic Information

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

Please check the type/dimensions/specifications of the part C-LMUM30 in the Linear Bushing - Standard, Single[RoHS Compliant] series.

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Specification/Dimensions

  • Inscribed Circle Dia. dr(Ø)

    • 3
    • 4
    • 5
    • 6
    • 8
    • 10
    • 12
    • 13
    • 16
    • 20
    • 25
    • 30
    • 35
    • 40
    • 50

    Clear

  • Overall Length L(mm)

    • 10
    • 12
    • 15
    • 19
    • 24
    • 29
    • 30
    • 32
    • 37
    • 42
    • 59
    • 64
    • 70
    • 80
    • 100

    Clear

  • Style

    • Standard

    Clear

  • Outer Dia. D(Ø)

    • 7
    • 8
    • 10
    • 12
    • 15
    • 19
    • 21
    • 23
    • 28
    • 32
    • 40
    • 45
    • 52
    • 60
    • 80

    Clear

  • Accuracy

    • High Grade

    Clear

  • Ball Recirculating Type

    • Single

    Clear

  • Motion

    • Linear

    Clear

  • Greased Filled

    • Not Provided

    Clear

  • type

    • C-LMU
    • C-LMU-N
    • C-LMUF-N
    • C-LMUM
    • C-LMUMF-N

    Clear

  • Outer Cylinder Surface Treatment

    • No Surface Treatment
    • Surface Treatment
      • Electroless Nickel Plating

    Clear

  • Types

    • Straight
    • Standard Flange

    Clear

  • Eccentricity(µm)

    • 16
    • 24
    • 30
    • 40

    Clear

  • Linear Motion / Rotational Motion

    • Linear Bushing (Linear Motion Only)

    Clear

  • Basic Rated Load, Dynamic Rating(N)

    • 167
    • 206
    • 265
    • 372
    • 412
    • 510
    • 775
    • 882
    • 980
    • 1570
    • 1670
    • 2160
    • 3820

    Clear

  • Retainer Material

    • Plastic (Duracon M90 Equivalent)
    • SUS304 Equivalent
    • Plastic

    Clear

  • Seal

    • No Seal
    • With Seal

    Clear

  • CAD

    • 2D
    • 3D

    Clear

Days to Ship

    • All
    • 1 Day(s) or Less
    • 2 Day(s) or Less
    • 4 Day(s) or Less
    • 11 Day(s) or Less

    Clear

Specify Alterations

Products like this...

Part Number
C-LMU-N16
C-LMU-N20
C-LMU-N25
C-LMUM35
C-LMUM40
C-LMUM5
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 17.09

1 Piece(s)Available 4 Day(s) or more 10---No Surface Treatment----Standard Flange24-1180-0.012Linear Bushing (Linear Motion Only)775PlasticNo Seal-

MYR 20.93

1 Piece(s)Available 4 Day(s) or more 10---No Surface Treatment----Standard Flange30-1370-0.013Linear Bushing (Linear Motion Only)882PlasticNo Seal-

MYR 40.13

1 Piece(s)Available 4 Day(s) or more 10---No Surface Treatment----Standard Flange30-1570-0.013Linear Bushing (Linear Motion Only)980PlasticNo Seal-

MYR 38.68

1 Piece(s) 11 Day(s) 10---[Surface Treatment] Electroless Nickel Plating----Standard Flange40-3,140-0.015Linear Bushing (Linear Motion Only)1670PlasticWith Seal-

MYR 56.70

1 Piece(s) 11 Day(s) 10---[Surface Treatment] Electroless Nickel Plating----Standard Flange40-4020-0.015Linear Bushing (Linear Motion Only)2160PlasticWith Seal-

MYR 10.90

1 Piece(s) 11 Day(s) 10---[Surface Treatment] Electroless Nickel Plating----Standard Flange16-206-0.011Linear Bushing (Linear Motion Only)167PlasticWith Seal-

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