(!)Due to Microsoft's end of support for Internet Explorer 11 on 15/06/2022, this site does not support the recommended environment.
Instead, please kindly use other browsers like Google Chrome, Microsoft Edge or Mozilla Firefox.

7 Million Products, 2,000 Brands.
50,000 Stock items for Same Day Ship Out.

All Categories

Search by Application

inCAD Library

Brands

Brand List

Webcode Seach | Series: #CODE

Keyword suggestions

Part number suggestions

Discontinued Products

Scheduled Maintenance Notice: This site will be unavailable due to scheduled maintenance from 9:00 24/11/2024 to 7:00 (SGT) 25/11/2024. We apologize for the inconvenience.
Notice of End of Sales for Economy Series Pneumatic Equipment Category. More information.

How can we improve?

How can we improve?

Feedback

Name (Optional)

E-mail Address (Optional)

Tel (Optional)

Thank you for your time.
Your feedback is essential for our continuous improvement
Privacy Policy

Thank you for your cooperation.

Thank you for your time.
Your feedback is essential for our continuous improvement
Please use the inquiry form.

Privacy Policy

Linear Bushing - Standard, Single[RoHS Compliant] (C-LMUMF-N20)

On Sale Till 31/03/2025
Volume Discount

MISUMI

MiSUMi Economy

MISUMI

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.

Part Number

Configured Part Number is shown.

C-LMUMF-N20

Drawing/Specifications
3D Preview
Part Numbers

Dimensional Drawing of Linear Bushings

Linear Bushing - Standard C-VALUE Single: Related Image

Type Linear Bushings		Outer Cylinder			Balls	Retainer	Operating Ambient Temperature	[A] Accessory
		[M] Material	[M]Hardness	[S] Surface Treatment	[M] Material	[M] Material
Standard Specification	C-LMU	SUJ2 Equivalent	58HRC or more	—	SUJ2 Equivalent	Plastic	－20 to 80°C	Seal [M] Material Nitrile Rubber
	C-LMUM			Electroless Nickel Plating
	C-LMU−N			—				-
High Temperature Specifications	C-LMUF−N					Stainless Steel	－20 to 120°C
	C-LMUMF-N			Electroless 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		B	W	D₁	Eccentricity (Max.)	Balls Rows	Basic Load Rating		Reference Mass (g)
			Surface Treatment	Surface Treatment									C (Dynamic) N	Co (Static) N
	Tolerance		Not Provided	Provided		Tolerance		Tolerance
			Tolerance	Tolerance
3	+0.003 -0.011	7	+0.006 -0.011	+0.006 -0.017	10	+0.1 -0.2	—	—	—	—	0.016	4	69	105	1.4
4		8			12		—	—	—	—			88	127	2
5		10			15		8	0 -0.4	1.1	9.6			167	206	4
6	+0.003 -0.012	12	+0.006	+0.006	19	+0.2 -0.4	11.3			11.5	0.024		206	265	8.5
8		15	-0.013	-0.020	24		15.3			14.3			265	380	17
10		19	+0.006 -0.015	+0.006 -0.023	29		19.4		1.3	18			372	549	31
12		21			30		20.4			20			412	598	41
13		23			32		20.4			22			510	784	46
16		28			37		23.3		1.6	27		5	775	1180	73
20	+0.003 -0.013	32	+0.006 -0.018	+0.006 -0.027	42		27.3		1.6	30.5	0.030	5	882	1370	98
25		40			59	+0.2 -0.5	37.3	0 -0.5	1.85	38		6	980	1570	236
30		45			64		40.8		1.85	43			1570	2740	262
35	+0.003 -0.015	52	+0.006 -0.021	+0.006 -0.032	70		45.3		2.1	49	0.040		1670	3140	425
40		60			80		56.3		2.1	57			2160	4020	654
50		80			100		68.8		2.6	76.5			3820	7940	1700

[!] 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

Specifications	Standard			High Temperature
Surface Treatment	Not Provided		Provided	Not Provided	Provided
dr	C-LMU	C-LMU−N	C-LMUM	C-LMUF−N	C-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

dr	Shaft Dia.	Housing Dia.
dr	g6 Tolerance		Tolerance
3	−0.002 −0.008	7	+0.021 +0.006
4	−0.004 −0.012	8
5		10
6		12	+0.024 +0.006
8	−0.005 −0.014	15	+0.024 +0.006
10	−0.005 −0.014	19	+0.027 +0.006
12	−0.006 −0.017	21
13		23
16		28
20	−0.007 −0.020	32	+0.031 +0.006
25		40
30		45
35	−0.009 −0.025	52	+0.036 +0.006
40		60
50		80

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

Illustration	Instructions for Use
	If 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.
	Linear Bushings are not suitable for rotating motion due to their structure. Forcing to rotate may cause failures.
	Linear Bushings are not suitable for usage with repetitive insertion and extraction of shafts.
	When 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

Part Number

CAD Data download and 3D preview are not available because the part number has not yet been determined.

*In order to open the CAD Data download and 3D preview screen, the part number must be fixed.
Please confirm the part number from "Specification / Dimension"on the left side, and then perform the CAD Data Download / 3D Preview operation.

CAD Download

: 30; 45; 60

Part Number
C-LMUMF-N20

Part Number	Standard Unit Price	Minimum order quantity	Volume Discount	Days to Ship	RoHS	Inscribed 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
	SGD 7.61	1 Piece(s)	Available	4 Day(s) or more	10	-	-	-	[Surface Treatment] Electroless Nickel Plating	-	-	-	-	Standard Flange	30	-	1370	-0.013	Linear Bushing (Linear Motion Only)	882	SUS304 Equivalent	No Seal	-

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-LMUMF-N20 in the Linear Bushing - Standard, Single[RoHS Compliant] series.

Configure

1 Part Numbers

View Part Numbers

Configure Remaining Specifications

Completed

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

Same day

4 Day(s) or Less
Clear

Specify Alterations

The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .

Similar Part Numbers

Part Number
C-LMU-N16
C-LMU-N20
C-LMU-N25
C-LMUMF-N25
C-LMUMF-N30
C-LMUMF-N5

Standard Unit Price	Minimum order quantity	Volume Discount	Days to Ship	RoHS	Inscribed 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
SGD 3.74	1 Piece(s)	Available	4 Day(s) or more	10	-	-	-	No Surface Treatment	-	-	-	-	Standard Flange	24	-	1180	-0.012	Linear Bushing (Linear Motion Only)	775	Plastic	No Seal	-
SGD 4.58	1 Piece(s)	Available	4 Day(s) or more	10	-	-	-	No Surface Treatment	-	-	-	-	Standard Flange	30	-	1370	-0.013	Linear Bushing (Linear Motion Only)	882	Plastic	No Seal	-
SGD 8.67	1 Piece(s)	Available	4 Day(s) or more	10	-	-	-	No Surface Treatment	-	-	-	-	Standard Flange	30	-	1570	-0.013	Linear Bushing (Linear Motion Only)	980	Plastic	No Seal	-
SGD 13.34	1 Piece(s)	Available	4 Day(s) or more	10	-	-	-	[Surface Treatment] Electroless Nickel Plating	-	-	-	-	Standard Flange	30	-	1570	-0.013	Linear Bushing (Linear Motion Only)	980	SUS304 Equivalent	No Seal	-
SGD 15.76	1 Piece(s)	Available	4 Day(s) or more	10	-	-	-	[Surface Treatment] Electroless Nickel Plating	-	-	-	-	Standard Flange	30	-	2740	-0.013	Linear Bushing (Linear Motion Only)	1570	SUS304 Equivalent	No Seal	-
SGD 4.91	1 Piece(s)	Available	4 Day(s) or more	10	-	-	-	[Surface Treatment] Electroless Nickel Plating	-	-	-	-	Standard Flange	16	-	206	-0.011	Linear Bushing (Linear Motion Only)	167	SUS304 Equivalent	No Seal	-

Tech Support

Factory Automation, Electronics, Tools, & MRO (Maintenance, Repair and Operations): Tel：(65) 6733 7211 / FAX：(65) 6733 0211; 9:00am - 6:00pm (Monday - Friday); Technical Inquiry

All Categories

Categories

Search by Application

Brands

Message from MISUMI

My Favorites

Settings

How can we improve?

Linear Bushing - Standard, Single[RoHS Compliant] (C-LMUMF-N20)

(i)Caution

Dimensional Drawing of Linear Bushings

Specification Table of Linear Bushings

Cautions/Prohibitions of Linear Bushings

How to Use of Linear Bushings

App. Example of Linear Bushings

Related Products of Linear Bushings

Part Number

Basic Information

Configure

Specification/Dimensions

Inscribed Circle Dia. dr(Ø)

Overall Length L(mm)

Style

Outer Dia. D(Ø)

Accuracy

Ball Recirculating Type

Motion

Greased Filled

type

Outer Cylinder Surface Treatment

Types

Eccentricity(µm)

Linear Motion / Rotational Motion

Basic Rated Load, Dynamic Rating(N)

Retainer Material

Seal

CAD

Days to Ship

Specify Alterations

Similar Part Numbers

Tech Support

Payment Method more

About MISUMI

About this Website

Useful Tools

Customer Service

Social Media

MISUMI Contact 9:00 am – 6:00 pm (Mon – Fri), 9:00 am – 3 pm (Sat)