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Linear Ball Bearing - LMU/SLMU Series (LMU8)

New Products
Volume Discount is available

New grease options (Type A: Alvania Grease S2, Type Y: AFF by THK) and more of no seal types are added. [3/31/23]
The most standard type in linear ball bushing products.

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Part Number

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FIND OTHER LINEAR BUSHINGS

Linear Bushings - Single Type:Related Image

For Feature of Low Temperature Black Chrome Plating, see >> Click here

・Materials

Type		Outer Cylinder			Balls	Retainer	Ambient Operating Temp.	Accessories
Single	Double	Material	Hardness	Surface Finish	Material	Material
LMU-N	LMUW-N	52100 Bearing Steel Equivalent	58HRC~	-	52100 Bearing Steel Equivalent	Plastic (Duracon M90 Equivalent)	-20~80°C	*Seal Material Nitrile Rubber (-20~120°C)
LMU	LMUW
LMUF-N	LMUWF					Stainless Steel (Stainless Steel)	-20~110°C
LMUF
LMUR	LMUWR			Low Temperature Black Chrome Plating	440C Stainless Steel Equivalent	Plastic (Duracon M90 Equivalent)	-20~80°C
LMUM-N	LMUWM-N			Electroless Nickel Plating
LMUM	LMUWM
LMUMF	LMUWMF					Stainless Steel (Stainless Steel)	-20~110°C
SLMU	SLMUW	440C Stainless Steel Equivalent	56HRC~	-		Plastic (Duracon M90 Equivalent)	-20~80°C
SLMUS	SLMUWS					Stainless Steel (Stainless Steel)	-20~120°C

[ ! ]No seal for dr=3 and 4, LMU-N, LMUW-N, LMUF-N, LMUM-N and LMUWM-N.

Specifications

Part Number
LMU20 LMU-N20 LMUR20 LMUR20L LMUR20G LMUR20H LMUR20A	(No Seal) (Low Temperature Black Chrome Plating) (L Type Greased) (G Type Greased) (H Type Greased) (A Type Greased)

Alternative grease types available.
Performance, see >> Click here

■Single

Part Number				D Tolerance		L		B		W	D₁	(r)	Eccentricity (Max.)	Rows of Balls	Basic Load Rating		Mass (g)
Type	dr	Tolerance		No Surface	Surface Treatment		Tolerance		Tolerance						C (Dynamic) N	Co (Static) N
Type	dr	Tolerance		Treatment	Surface Treatment		Tolerance		Tolerance						C (Dynamic) N	Co (Static) N
	3	0 -0.008	7	0 -0.009	0 -0.015	10	0 -0.12	-	-	-	-	0.3	0.008	4	69	105	1.4
LMU-N (No Seal)	4		8			12		-	-	-	-	0.3			88	127	2
LMU	5		10			15		8	0 -0.4	1.1	9.6	0.4			167	206	4
LMUF-N (No Seal)	6	0 -0.009	12	0 -0.011	0 -0.018	19	0 -0.2	11.3			11.5		0.012		206	265	8.5
LMUF	8		15	0 -0.011	0 -0.018	24		15.3			14.3				265	380	17
LMUR	10		19	0 -0.013	0 -0.021	29		19.4		1.3	18				372	549	31
LMUM-N (No Seal)	12		21			30		20.4			20	0.8			412	598	41
LMUM	13		23			32		20.4			22				510	784	46
LMUMF	16		28			37		23.3		1.6	27				775	1180	73
SLMU	20	0 -0.01	32	0 -0.016	0 -0.025	42		27.3		1.6	30.5		0.015	5	882	1370	98
SLMUS	25		40			59	0 -0.3	37.3	0 -0.5	1.85	38	1.5		6	980	1570	236
	30		45			64		40.8		1.85	43				1570	2740	262
LMU	35	0 -0.012	52	0 -0.019	0 -0.03	70		45.3		2.1	49		0.02		1670	3140	425
LMUM	40		60			80		56.3		2.1	57				2160	4020	654
	50		80			100		68.8		2.6	76.5				3820	7940	1700

kgf=Nx0.101972
[ ! ]Anti-rust is applied as shipped.[ ! ]No dr=3 and 4 for no seal types. [ ! ]dr=3 and 4 have no seal.
[ ! ]No-Seal Type has lower sliding resistance (0.4~1.2N) and slides ligher. For dust protection for sliding portion, need to consider a different method.
[ ! ]Marking on no seal type, thre are two kinds. (ex. With Part Number LMU-N10, the marking can be either LMU-N10 or LMU10-N).

■Double

Part Number				D Tolerance		L		B		W	D₁	(r)	Eccentricity (Max.)	Rows of Balls	Basic Load Rating		Allowable Static Moment (N·m)	Mass (g)
Type	dr	Tolerance		No Surface	Surface Treatment		Tolerance		Tolerance						C (Dynamic) N	Co (Static) N
Type	dr	Tolerance		Treatment	Surface Treatment		Tolerance		Tolerance						C (Dynamic) N	Co (Static) N
	3	0 -0.01	7	0 -0.011	0 -0.015	19	0 -0.3	-	-	-	-	0.3	0.01	4	138	210	0.51	3.2
LMUW-N (No Seal)	4		8			23		-	-	-	-	0.3			176	254	0.63	4.8
LMUW	5		10			28		18.2	0 -0.5	1.1	9.6	0.4			263	412	1.38	11
LMUWF	6		12	0 -0.013	0 -0.018	35		24.8			11.5		0.015		324	529	2.18	16
LMUWR	8		15	0 -0.013	0 -0.018	45		32.8			14.3				431	784	4.31	31
LMUWM-N (No Seal)	10		19	0 -0.016	0 -0.021	55		41.4		1.3	18				588	1100	7.24	62
LMUWM	12		21			57		43.4			20	0.8			657	1200	10.9	80
LMUWMF	13		23			61		43.4			22				813	1570	11.6	90
SLMUW	16		28			70		49.8		1.6	27				1230	2350	19.7	145
SLMUWS	20	0 -0.012	32	0 -0.019	0 -0.025	80		57.8	0 -0.6	1.6	30.5		0.02	5	1400	2740	26.8	180
	25		40			112	0 -0.4	78.3		1.85	38	1.5		6	1560	3140	43.4	440
	30		45			123		85.3		1.85	43				2490	5490	82.8	480
LMUW	35	0 -0.015	52	0 -0.022	0 -0.03	135		94.8		2.1	49		0.025		2650	6270	110	795
LMUWM	40		60			151		116.8		2.1	57				3430	8040	147	1170
	50		80			192		142.8		2.6	76.5				6080	15900	397	3100

kgf=Nx0.101972

[ ! ]Anti-rust is applied as shipped.[ ! ]No dr=3 and 4 for no seal types. [ ! ]dr=3 and 4 have no seal.
[ ! ]No-Seal Type has lower sliding resistance (0.4~1.2N) and slides ligher. For dust protection for sliding portion, need to consider a different method.
[ ! ]Marking on no seal type, thre are two kinds. (ex. With Part Number LMU-N10, the marking can be either LMU-N10 or LMU10-N).
[ ! ]Spacers and Stoppers for linear bushings can be selected from >> Click here

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Part Number
LMU8

Part Number

Volume Discount

Days to Ship

RoHS

Outer Cylinder Material

Outer Cylinder Surface Finish

For Shaft Diameter
(mm)

Overall Length L
(mm)

Lubrication Type

Outer Diameter D
(mm)

Length

Ball Recirculating Type

Basic Dynamic Load Rating (Details)
(N)

Basic Static Load Rating
(N)

Inner Contact Circle Tolerance (Negative Side)
(mm)

Eccentricity
(µm)

Ball Material

Retainer Material

Seals

Material Certificate

Material Certificate: Material

Available

Same Day

[Steel] 52100 Bearing Steel Equivalent

None

No Grease (Rust Preventive Oil)

Single

265

380

-0.009

52100 Bearing Steel Equivalent

Plastic (Duracon M90 Equivalent)

With Seal

Overview of Linear Bushings

Example

Linear Bushing Spacers (LBS >> Click here)
Stopper (LMST >> Click here)

Fitting with Linear Bushings

Application Example from CAD Library

Product TOP

Basic Information

Product Type	Straight	Motion	Linear Motion	Style	Standard
Type	Straight	Precision	High Grade

Product Notes: Please check the product specification for the part number LMU8 on the Linear Ball Bearing - LMU/SLMU Series. The LMU8 is included in our offerings for MISUMI Linear Ball Bearings and our full line of MISUMI products.

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Stock

- Stock Item Only
Clear

type
- LMU
- LMU-N
- LMUF
- LMUF-N
- LMUM
- LMUM-N
- LMUMF
- LMUR
- LMUW
- LMUW-N
- LMUWF
- LMUWM
- LMUWM-N
- LMUWMF
- LMUWR
- SLMU
- SLMUS
- SLMUW
- SLMUWS
Clear
Outer Cylinder Material
- Steel
  - 52100 Bearing Steel Equivalent
- 440C Stainless Steel Equivalent
Clear
Outer Cylinder Surface Finish
- None
- Plated
  - Electroless Nickel
  - Low Temperature Black Chrome
Clear
For Shaft Diameter(mm)
3

4

5

6

8

10

12

13

16

20

25

30

35

40

50
Clear
Overall Length L(mm)
10

12

15

19

23

24

28

29

30

32

35

37

42

45

55

57

59

61

64

70

80

100

112

123

135

151

192
Clear
Lubrication Type
- No Grease (Rust Preventive Oil)
- Grease coating
  - A Type (Alvania S2 (For all purpose industrial))
  - G Type (Low Dust Generation)
  - H Type (For Food/Beverages）
  - L Type (Heat Resistant)
  - Y Type: AFF (Low Particle THK product)
Clear
Outer Diameter D(mm)
7

8

10

12

15

19

21

23

28

32

40

45

52

60

80
Clear
Length
- Single
- Double
Clear
Ball Recirculating Type
- Single
- Double
Clear
Eccentricity(µm)
8

10

12

15

20

25
Clear
Ball Material
- 440C Stainless Steel Equivalent
- 52100 Bearing Steel Equivalent
Clear
Retainer Material
- Plastic (Duracon M90 Equivalent)
- Stainless Steel
Clear
Seals
- No Seal
- With Seal
Clear
CAD
- 2D
- 3D
Clear

Days to Ship

All

Same Day

4 Days or Less

5 Days or Less

7 Days or Less

8 Days or Less

12 Days or Less
Clear

Specify Alterations

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

Products like this...

Part Number
LMU-N16
LMU-N20
LMU-N25
LMU8A
LMU8G
LMU8H

Volume Discount	Days to Ship	RoHS	Outer Cylinder Material	Outer Cylinder Surface Finish	For Shaft Diameter (mm)	Overall Length L (mm)	Lubrication Type	Outer Diameter D (mm)	Length	Ball Recirculating Type	Basic Dynamic Load Rating (Details) (N)	Basic Static Load Rating (N)	Inner Contact Circle Tolerance (Negative Side) (mm)	Eccentricity (µm)	Ball Material	Retainer Material	Seals	Material Certificate	Material Certificate: Material
Available	Same Day Stock	10	[Steel] 52100 Bearing Steel Equivalent	None	16	37	No Grease (Rust Preventive Oil)	28	Single	Single	775	1180	-0.009	12	52100 Bearing Steel Equivalent	Plastic (Duracon M90 Equivalent)	No Seal	-	-
Available	Same Day Stock	10	[Steel] 52100 Bearing Steel Equivalent	None	20	42	No Grease (Rust Preventive Oil)	32	Single	Single	882	1370	-0.01	15	52100 Bearing Steel Equivalent	Plastic (Duracon M90 Equivalent)	No Seal	-	-
Available	Same Day Stock	10	[Steel] 52100 Bearing Steel Equivalent	None	25	59	No Grease (Rust Preventive Oil)	40	Single	Single	980	1570	-0.01	15	52100 Bearing Steel Equivalent	Plastic (Duracon M90 Equivalent)	No Seal	-	-
Available	7 Days	-	[Steel] 52100 Bearing Steel Equivalent	None	8	24	[Grease coating] A Type (Alvania S2 (For all purpose industrial))	15	Single	Single	265	380	-0.009	12	52100 Bearing Steel Equivalent	Plastic (Duracon M90 Equivalent)	With Seal	Unavailable	-
Available	7 Days	10	[Steel] 52100 Bearing Steel Equivalent	None	8	24	[Grease coating] G Type (Low Dust Generation)	15	Single	Single	265	380	-0.009	12	52100 Bearing Steel Equivalent	Plastic (Duracon M90 Equivalent)	With Seal	-	-
Available	7 Days	10	[Steel] 52100 Bearing Steel Equivalent	None	8	24	[Grease coating] H Type (For Food/Beverages）	15	Single	Single	265	380	-0.009	12	52100 Bearing Steel Equivalent	Plastic (Duracon M90 Equivalent)	With Seal	-	-

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Linear Ball Bearing - LMU/SLMU Series (LMU8)