What brand is the linear bearing of FA?

The linear bearing of FA is MISUMI brand.

What is the difference between the single liner type and the double liner type of linear bearing of FA?

Single liner type is one row of steel balls, and double liner type is two rows of steel balls. Generally, the length of the double liner type is more than twice that of the single liner type, and the contact area of steel balls is longer, the radial sway is smaller, and the rated load is larger.

Comparison of antirust ability of linear bearings?

Antirust ability from strong to weak: Low Temp. Black Chrome Plating → No-Electro Nickel Plated → No Surface Treatment. Ordinary bearing steel and stainless steel (SUS440C) are easy to rust, so it is necessary to apply anti-rust oil regularly.

Is there a product stamp on the linear bearing?

There is no stamp on the product body, and the product model is on the packaging box.

When the linear bearing and the guide shaft are used together, some are closely matched, but some have relatively large clearance. Does it affect the use?

The linear bearing and the guide shaft are in point contact and rolling fit through the circulating steel ball structure. Because of point contact and non-interference fit, it is normal to Provided Clearance between the shaft and the bearing, which will not affect the use. The use of this structure greatly reduces the friction resistance and prolongs the service life of the workpiece.

How to deal with oil leakage in the received linear bearing?

Linear bearing is coated with anti-rust oil (except for MX grease device) when leaving the factory, which has little influence on grease. It is recommended to clean it with ultrasonic cleaner or engine oil before use and apply grease after drying.

How much load does linear bearing carry?

For specific load carried, please refer to Load Carried information

Can linear bearing be rotated?

The linear bearing is not suitable for rotating motion in structure. If it is forcibly rotated, it may cause damage to the product. If rotating motion is required, please give priority to linear type rotating bushings.

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Notice of End of Sales for Economy Series Pneumatic Equipment Category. More information.

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Part Number Complete

E-LBM20UU

type Inscribed Circle Dia. dr Overall Length L Outer Cylinder Surface Treatment Outer Dia. D Ball Recirculating Type Length Eccentricity CAD Days to Ship

Specification/Dimensions

type
- C-LBM
- C-LM
- E-LB
- E-LBL
- E-LBM
Clear
Inscribed Circle Dia. dr(Ø)
5

6

8

10

12

13

16

20

25

30

35

40

50
Clear
Overall Length L(mm)
15

19

24

29

30

32

35

37

42

45

55

57

59

61

64

70

80

100

112

123

135

151
Clear
Outer Cylinder Surface Treatment
- No Surface Treatment
- Surface Treatment
  - Electroless Nickel Plating
Clear
Outer Dia. D(Ø)
10

12

15

19

21

23

28

32

40

45

52

60

80
Clear
Ball Recirculating Type
- Single
- Double
Clear
Length
- Single
- Double
Clear
Eccentricity(µm)
0.024

0.03

0.035

0.04

0.045

24

30

40
Clear
CAD
- 2D
- 3D
Clear

Days to Ship

All

Same day

15 Day(s) or Less
Clear

Specify Alterations

Linear Bushings Straight Single / Double (E-LBM20UU)

Volume Discount

Check FAQ of this product (9 items)

Brand :

MiSUMi Economy

Order Qty :
Total Price :

---
Days to ship :

---

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CAD Download

Product Description

Linear Bushings Straight Single / Double
These Linear Bushings are an economy item, The price is cheaper than the MISUMI standard product.They offer a wide variety of sizes to choose from.
[Features]
● Support Shaft Diameter Minimum/Maximum (mm.): 5 and 50
● Overall Length Minimum/Maximum (mm.): 15 and 151
● Shape : Straight
● Ball Recirculating Type : Single or Double
● Material:
- Housing - SUJ2 Equivalent
- Ball - SUJ2 Equivalent
[Application]
It is used in industrial machinery such as conveyor systems, packaging machines, and robotic equipment.

Economy Straight Linear Bushing

Linear bushingDurablePrecise

- Precision straight linear bushing for accurate linear motion.

- High-quality SUJ2 equivalent material for durability.

- Available in various shaft diameters

- Single and double ball recirculating types for different needs.

- Ideal for conveyor systems and robotic equipment.

MISUMI Standard

Cheaper Price

Product Variety

3D CAD
3D CAD Support

Product Overview

Linear bearing is a linear type motion guiding mechanism matched with linear guide shaft. The steel ball rolls circularly along the track groove formed by the shell and the retainer, and the linear bearing reciprocates linearly relative to the guide shaft.
Through the rolling of steel ball, high-efficiency movement with low friction resistance can be realized.

Dimensional Drawing

This product is delivered at the initial stage, the color of the packing may be inconsistent with the photo, which shall be subject to the actual product.

Specifications Overview

Type	dr[Φ:mm]	Housing			Ball	Retainer	Operating environment temperature	Accessories
		Material	Hardness	Surface Treatment	Material	Material
C-LM_UU	6~30	Equivalent to SUJ2	58HRC～	－	Equivalent to SUJ2	Resin	-20~80℃	Seal packing Material Nitrile Rubber
E-LB_UU	5~50
E-LBM_UU	6~45			Electroless Nickel Plating

If there are requirements for rust prevention, give priority to MISUMI standard products with surface treatment of electroless nickel plating or those with low temperature hard chromium plating.

Specification Table

		Part Number ( Type ・Diameter ・Length )
		C-LM8UU E-LB6UU

■ Dimension Specification Table

Part Number				O.D. D Tolerance					Overall Length L (Single)		Overall Length L (Double)		B			W	D₁	Eccentricity (maximum)		Number of ball rows	Mass (g)		Basic Rated Load				Double Type Allowable Statice Moment (N・m)
Type	dr	Length	Tolerance		E-LB		E-LBM		L	Tolerance	L	Tolerance	Single	Double	Tolerance			Eccentricity (maximum)			Mass (g)		Single		Double
Type	dr	Length	Tolerance		Single	Double	Single	Double	L	Tolerance	L	Tolerance	Single	Double	Tolerance			Single	Double		Single	Double	C (Dynamic) N	Co (Static) N	C (Dynamic) N	Co (Static) N
E-LB_UU (No surface treatment) E-LBM_UU (Electroless Nickel Plating)	5	UU	+0.003 -0.012	10	0 -0.013	-	0 -0.015	-	15	+0.2 -0.4	-	-	8	-	0 -0.4	1.1	9.6	0.024	-	4	4	-	167	206	-	-	-
	6	UU (Single) LUU (Double)		12		0 -0.015		0 -0.015	19		35	+0.3 -0.6	11.3	24.8			11.5		0.03		8.5	16	206	265	324	529	2.18
	8			15				0 -0.015	24		45		15.3	32.8			14.3				17	31	265	380	431	784	4.31
	10			19	0 -0.015		0 -0.016	0 -0.016	29		55		19.4	41.4		1.3	18				31	62	372	549	588	1100	7.24
	12			21		0 -0.018			30		57		20.4	43.4			20				41	80	412	598	657	1200	10.9
	13			23					32		61		20.4	43.4			22				46	90	510	784	813	1570	11.6
	16			28					37		70		23.3	49.8		1.6	27			5	73	145	775	1180	1230	2350	19.7
	20		+0.003 -0.013	32	0 -0.018	0 -0.021	0 -0.018	0 -0.019	42		80		27.3	57.8		1.6	30.5	0.03	0.04	5	98	180	882	1370	1400	2740	26.8
	25			40					59	+0.2 -0.5	112	+0.3 -0.7	37.3	78.3	0 -0.5	1.85	38			6	236	440	980	1570	1560	3140	43.4
	30			45					64		123		40.8	85.3		1.85	43				262	480	1570	2740	2490	5490	82.8
	35		+0.003 -0.014	52	0 -0.025	0 -0.028	0 -0.023	0 -0.025	70		135		45.3	94.8		2.1	49	0.035	0.045		425	795	1670	3140	2650	6270	110
	40		+0.003 -0.014	60	0 -0.025	0 -0.028	0 -0.023	0 -0.025	80		151		56.3	116.8		2.1	57		0.045		654	1170	2160	4020	3430	8040	147
	50	UU	+0.003 -0.015	80	0 -0.028	-	0 -0.025	-	100		-	-	68.8	-		2.6	76.5		-		1700	-	3820	7940-	-	-	-

If there are requirements for rust prevention, give priority to products with surface treatment of electroless nickel plating.

Specification of "E-LB" corresponds to the spec of "C-LM". Difference between these 2 type is only Part No.

■ Dimension Specification Table

Part Number			D		L		B		W	D₁	Lateral Misalignment (maximum)	Number of ball rows	Weight (g)	Basic Rated Load
Type	dr	Tolerance		Tolerance		Tolerance		Tolerance	W	D₁	Lateral Misalignment (maximum)	Number of ball rows	Weight (g)	C (Dynamic) N	Co (Static) N
C-LM_UU	6	+0.003 -0.012	12	0 -0.013	19	+0.2 -0.4	11.3	0 -0.4	1.1	11.5	0.024	4	7.4	206	265
	8		15	0 -0.013	24		15.3		1.1	14.3			13	265	380
	10		19	0 -0.015	29		19.4		1.3	18			24	372	549
	12		21		30		20.4		1.3	20			27	412	598
	16		28		37		23.3		1.6	27		5	74	775	1180
	20	+0.003 -0.013	32	0 -0.018	42		27.3		1.6	30.5	0.030	5	83	882	1370
	25		40		59	+0.2 -0.5	37.3	0 -0.5	1.9	38		6	206	980	1570
	30		45		64	+0.2 -0.5	40.8	0 -0.5	1.9	43		6	229	1570	2740

If there are requirements for rust prevention, give priority to products with surface treatment of electroless nickel plating or those with low temperature hard chromium plating.

Usage Method

Product Drawings	Instructions for use
	When the linear bearing is under heavy load (unbalanced load), one piece of single liner type is not applicable. It is recommended to use one piece of double liner type or multiple pieces of single liner type.
	Linear bearing is not suitable for rotating motion in structure. If you rotate forcibly, it may cause damage to the product. Please pay attention during use.
	Linear bearing is not suitable for repeated plugging and unplugging.
	When inserting the guide shaft into the linear bearing, please align the center and insert it slowly, otherwise the steel ball will fall off or the retainer will be deformed.

Precautions

■ Regular maintenance:
① Before use, please apply grease to the ball row inside the linear bearing, and then replenish it in due course. Grease forms an oil film on the surfaces of steel ball and rolling surface (guide shaft·bushing) of linear bearing, which effectively reduces friction and prevents sintering. Grease reduction and aging will greatly affect the life of linear bearing.
② Recommended grease: lithium soap grease.
③ Recommended grease filling interval: Usually every 6 months.
When the moving distance is long, it is recommended to move once every three months or when the moving distance exceeds 1000km within the time limit, the 1000km shall prevail.

■ Dust prevention measures:
If dust or foreign matter enters the inside of the linear bearing, it may damage the circulation of steel balls, resulting in unexpected failures. When used in harsh environment, please install dust cover and protection cover, etc.

■ MISUMI linear bearing is recommended to be combined with guide shaft with quenching g6 tolerance.

■ MISUMI linear bearing is recommended to be installed on the holder with H7 tolerance. The linear bearing is in clearance fit with the holder.

Related Products

Guide shaft Straight bar type	Linear bearing holder assembly Widened square shape	Linear bearing Standard type Straight type

Typical model: SFJ20-75	Typical model: LHBB8	Typical model: LMU8

Part Number

Incomplete part number.
Please use left hand selections to complete a part number.

: 30; 45; 60

Part Number
E-LBM20UU

Part Number	Price	Minimum Order Qty.	Volume Discount	Days to Ship	RoHS	Inscribed Circle Dia. dr (Ø)	Overall Length L (mm)	Outer Cylinder Surface Treatment	Outer Dia. D (Ø)	Ball Recirculating Type	Length	Eccentricity (µm)	Basic Load Rating: Dynamic Load (Details) (N)	Basic Load Rating: Static Load (N)	Inscribed Circle Dia. Tolerance (Negative Side) (mm)
	₹ 600.00	1 Piece(s)	Available	Same day	10	20	42	[Surface Treatment] Electroless Nickel Plating	32	Single	Single	0.03	882	1370	-0.018

■ Test conditions
•Linear bearing (inner diameter 16) is matched with MISUMI guide shaft (PSFJ) to apply 63kg load and walk for 30km, and confirm the product damage and sliding noise.
Product Feature Drawings

■ Test results
The economy series product ensures smooth sliding of steel ball, which have good durability and low noise
Product Feature Drawings

*Products circulating on the market are similar products randomly purchased by our company from online or offline markets
*The test data are obtained through testing by our company, which are for reference only

Example of Use

Equipment Name:
Stamping die position adjustment component

Design Purpose:
Adjust the position of the stamping die to correct the deviation of the opening position in the width direction of the sheet workpiece.

Application Description:
By matching with the cylinder, it realizes the guidance of the linear motion of the workpiece in the horizontal direction.

Application Industries

Electronic & Electrical Appliances	Automotive	Lithium battery

LCD	Smart phone	Semiconductor

Basic Information

Type	Straight	Style	Standard	Outer Cylinder Material	SUJ2 Equivalent
Lubrication Type	Not Provided	Accuracy	Standard Grade	Motion	Linear
Types	Straight	Ball Material	SUJ2 Equivalent	Retainer Material	Plastic
Seal	Provided

Please check the type/dimensions/specifications of the part E-LBM20UU in the Linear Bushings Straight Single / Double series.

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

Frequently asked question (FAQ)

Question: What brand is the linear bearing of FA?: Answer: The linear bearing of FA is MISUMI brand.
Question: What is the difference between the single liner type and the double liner type of linear bearing of FA?: Answer: Single liner type is one row of steel balls, and double liner type is two rows of steel balls. Generally, the length of the double liner type is more than twice that of the single liner type, and the contact area of steel balls is longer, the radial sway is smaller, and the rated load is larger.
Question: How is linear bearing maintained regularly?: Answer: MISUMI recommends that linear bearing is regularly replenished with grease, and it is recommended to do so once every six months. When the moving distance is long, it is recommended to move once every three months or when the moving distance exceeds 1000km within the time limit, the 1000km shall prevail.
Question: Comparison of antirust ability of linear bearings?: Answer: Antirust ability from strong to weak: Low Temp. Black Chrome Plating → No-Electro Nickel Plated → No Surface Treatment.
Ordinary bearing steel and stainless steel (SUS440C) are easy to rust, so it is necessary to apply anti-rust oil regularly.
Question: Is there a product stamp on the linear bearing?: Answer: There is no stamp on the product body, and the product model is on the packaging box.
Question: When the linear bearing and the guide shaft are used together, some are closely matched, but some have relatively large clearance. Does it affect the use?: Answer: The linear bearing and the guide shaft are in point contact and rolling fit through the circulating steel ball structure. Because of point contact and non-interference fit, it is normal to Provided Clearance between the shaft and the bearing, which will not affect the use. The use of this structure greatly reduces the friction resistance and prolongs the service life of the workpiece.
Question: How to deal with oil leakage in the received linear bearing?: Answer: Linear bearing is coated with anti-rust oil (except for MX grease device) when leaving the factory, which has little influence on grease. It is recommended to clean it with ultrasonic cleaner or engine oil before use and apply grease after drying.
Question: How much load does linear bearing carry?: Answer: For specific load carried, please refer to Load Carried information
Question: Can linear bearing be rotated?: Answer: The linear bearing is not suitable for rotating motion in structure. If it is forcibly rotated, it may cause damage to the product. If rotating motion is required, please give priority to linear type rotating bushings.

Check other FAQ (6 items) Hide

Product variants

Part Number
C-LM20UU
C-LM25UU
C-LM30UU
E-LBM25LUU
E-LBM25UU
E-LBM30LUU

Standard Unit Price	Minimum order quantity	Volume Discount	Days to Ship	RoHS	Inscribed Circle Dia. dr (Ø)	Overall Length L (mm)	Outer Cylinder Surface Treatment	Outer Dia. D (Ø)	Ball Recirculating Type	Length	Eccentricity (µm)	Basic Load Rating: Dynamic Load (Details) (N)	Basic Load Rating: Static Load (N)	Inscribed Circle Dia. Tolerance (Negative Side) (mm)
₹ 235.00	1 Piece(s)	Available	Same day Stock	10	20	42	No Surface Treatment	32	Single	Single	30	882	1370	-0.013
₹ 308.00	1 Piece(s)	Available	Same day Stock	10	25	59	No Surface Treatment	40	Single	Single	30	980	1570	-0.013
₹ 372.00	1 Piece(s)	Available	Same day Stock	10	30	64	No Surface Treatment	45	Single	Single	30	1570	2740	-0.013
₹ 1,187.43	1 Piece(s)	Available	Same day Stock	10	25	112	[Surface Treatment] Electroless Nickel Plating	40	Double	Double	0.04	1560	3140	-0.019
₹ 688.18	1 Piece(s)	Available	Same day Stock	10	25	59	[Surface Treatment] Electroless Nickel Plating	40	Single	Single	0.03	980	1570	-0.018
₹ 1,260.55	1 Piece(s)	Available	Same day Stock	10	30	123	[Surface Treatment] Electroless Nickel Plating	45	Double	Double	0.04	2490	5490	-0.019

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