What brand is the linear bearing of FA?

The linear bearing of FA is MISUMI brand.

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.

How is linear bearing maintained regularly?

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.

Comparison of antirust ability of linear bearings?

Antirust ability from strong to weak: No-Electro Nickel Plated → No Surface Treatment. Standard grade bearing steel is easy to rust, so it is necessary to apply anti-rust oil regularly.

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.

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 have 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 before use and apply grease after drying.

Can the linear bearing rotate?

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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Part Number Complete

C-LMK10LUU

Inscribed Circle Dia. dr Overall Length L Outer Dia. D Eccentricity type CAD Days to Ship

Specification/Dimensions

Inscribed Circle Dia. dr(Ø)
10

12

16

20

25

30
Clear
Overall Length L(mm)
55

57

70

80

112

123
Clear
Outer Dia. D(Ø)
19

21

28

32

40

45
Clear
Eccentricity(µm)
30

40
Clear
type
- C-LMKL
Clear
CAD
- 2D
- 3D
Clear

Days to Ship

All

Same day
Clear

Specify Alterations

Square Flange Linear Bushings Double Liner Standard

Volume Discount

Check FAQ of this product (8 items)

Brand :

MiSUMi Economy

Order Qty :
Total Price :

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Days to ship :

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CAD Download

Economy Square Flange Linear Bushing

RobustDurableLow Noise

- Robust square flange design for stable support.

- Supports a wide range of shaft diameters

- High durability with low noise operation.

- Optional electroless nickel plating for enhanced rust resistance.

- Perfect for industrial machinery, packaging machines, and robotic equipment.

MISUMI Standard

Cheaper Price

Product Variety

3D CAD
3D CAD Support

Product Overview of Linear Bushings

The flanged Linear Bushings, linear bearing integrates the linear bearing with the support, which is compact in structure and easy to assemble to the mechanism accurately and simply.

Product Feature of Linear Bushings

Linear Bushings, 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.

Linear Bushings Feature 1: The maximum price reduction is 62% compared with the standard product of MISUMI
Linear Bushings Feature 2: Holding high durability, low noise

■ Linear Bushings 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

■ Linear Bushings 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

Dimensional Drawing of Linear Bushings

Economic type single-liner linear bearing with flange specification table LINEAR BUSHINGS

This product of Linear Bushings 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.

The flange part of this product is not heat-treated, and there may be bumps and bruises.

Specifications Overview of Linear Bushings

Linear Bushings Type	dr[Φ:mm]	Housing			Ball	Retainer	Operating environment temperature	Accessories
Linear Bushings Type	dr[Φ:mm]	Material	Hardness	Surface Treatment	Material	Material	Operating environment temperature	Accessories
C-LMK__LUU	10~30	Equivalent to SUJ2	58HRC～	－	Equivalent to SUJ2	Resin	-20~80℃	Seal packing Material Nitrile Rubber

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

Usage Method of Linear Bushings

Product Drawings of Linear Bushings	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 Bushings, 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 of Linear Bushings

■ Linear Bushings 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.
④ 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.
⑤ When the linear bearing is subjected to large moment load (eccentric load), one piece of single liner type is not applicable, so it is recommended to use one piece of double liner type or multiple pieces of single liner type.

■ 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.

Example Use of Linear Bushings

Linear Bushings Equipment Name:
Conveying direction change mechanism

Linear Bushings Design Purpose:
The conveying direction of the workpiece conveyed by the conveyor belt is 90°. Change the direction to move.

Linear Bushings Parts Application Description:
By matching with the air cylinder, the conveying direction of the workpiece can be changed.

Application Industries of Linear Bushings

Electronic & Electrical Appliances	Automotive	Lithium battery

LCD	Smart phone	Semiconductor

Related Products of Linear Bushings

Guide shaft Straight bar type	(Economy series) Linear bearing Standard type Single liner type	Shaft Collar Slit

Typical Linear Bushings model: SFJ20-75	Typical Linear Bushings model: C-LM8UU	Typical Linear Bushings model: SCS8-10

Specification Table of Linear Bushings

		Part Number
		C-LMK10LUU

■Material Specification Table of Linear Bushings

Type	Housing			Ball	Retainer	Operating environment temperature	Accessories
Type	Material	Hardness	Surface Treatment	Material	Material	Operating environment temperature	Accessories
C-LMK__LUU	Equivalent to SUJ2	58HRC～	－	Equivalent to SUJ2	Resin	-20~80℃	Seal packing Material Nitrile Rubber

■ Dimension Specification Table of Linear Bushings

Part Number			Outer Diameter: D		Total Length: L		H	T	d	d1	t	P.C.D.	W	Lateral misalignment	Number of ball rows	Verticality	Basic Rated Load		Allowable static torque (N·m)	Weight (g)
Type	dr	Tolerance		Tolerance		Tolerance											C (Dynamic) N	Co (Static) N
C－LMK__LUU	10	+0.003 -0.013	19	0 -0.018	55	±0.6	40	6	4.5	7.5	4.1	29	30	0.03	4	0.03	588	1100	7.24	68
	12		21		57		42					32	32				657	1200	10.9	75
	16		28		70		48					38	37		5		1230	2350	19.7	169
	20	+0.003 -0.015	32	0 -0.021	80		54	8	5.5	9	5.1	43	42	0.04		0.04	1400	2740	26.8	209
	25		40		112		62					51	50		6		1560	3140	43.4	467
	30		45		123		74	10	6.6	11	6.1	60	58				2490	5490	82.8	551

Part Number

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

: 30; 45; 60

Part Number
C-LMK10LUU
C-LMK12LUU
C-LMK16LUU
C-LMK20LUU
C-LMK25LUU
C-LMK30LUU

Price	Minimum Order Qty.	Volume Discount	Days to Ship	Inscribed Circle Dia. dr (Ø)	Overall Length L (mm)	Outer Dia. D (Ø)	Eccentricity (µm)	Basic Load Rating: Dynamic Load (Details) (N)	Basic Load Rating: Static Load (N)	Inscribed Circle Dia. Tolerance (Negative Side) (mm)
₹ 420.00	1 Piece(s)	Available	Same day	10	55	19	30	588	1100	-0.013
₹ 437.00	1 Piece(s)	Available	Same day	12	57	21	30	657	1200	-0.013
₹ 504.00	1 Piece(s)	Available	Same day	16	70	28	30	1230	2350	-0.013
₹ 541.00	1 Piece(s)	Available	Same day	20	80	32	40	1400	2740	-0.015
₹ 908.66	1 Piece(s)	Available	Same day	25	112	40	40	1560	3140	-0.015
₹ 1,146.60	1 Piece(s)	Available	Same day	30	123	45	40	2490	5490	-0.015

Basic Information

Type	Flange	Flange Type	Standard Flange	Style	Standard
Outer Cylinder Material	SUJ2 Equivalent	Outer Cylinder Surface Treatment	No Surface Treatment	Lubrication Type	Not Provided
Accuracy	Standard Grade	Ball Recirculating Type	Double	Motion	Linear
Types	Standard Flange	Length	Double	Flange Shape	Square Flange
Ball Material	SUJ2 Equivalent	Retainer Material	Plastic	Seal	Provided

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: 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: 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: No-Electro Nickel Plated → No Surface Treatment.
Standard grade bearing steel is easy to rust, so it is necessary to apply anti-rust oil regularly.
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: 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 have 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 before use and apply grease after drying.
Question: Can the linear bearing rotate?: 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.

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