Round Flange Linear Bushings Double Liner Standard

Caution
- - This product focuses on price competitiveness, and the unit price is low, but there may be rust, scratches, or scratches on the exterior. For those who place importance on product appearance, we recommend purchasing existing Misumi products rather than economy products. - If domestic stock is insufficient, the minimum order quantity may be temporarily increased. we ask For your understanding. - Due to the retainer color change (existing: black, changed: yellow), the color may differ from the representative image, and colors may be mixed and shipped.
- This product will be discontinued once stock ran out. The replacement model CLICK here
Product Description
Round Flange Linear Bushings Double Liner Standard
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.): 10 and 30
● Overall Length Minimum/Maximum (mm.): 55 and 123
● Shape : Round Flange
● Material:
- Housing - SUJ2 Equivalent
- Ball - SUJ2 Equivalent
[Application]
It is used in industrial machinery such as conveyor systems, packaging machines, and robotic equipment.
Economy Round Flange Linear Bushing
- Precision engineering for smooth linear motion.
- High-quality SUJ2 equivalent material ensures durability.
- Available in a range of shaft diameters
- Single and double ball recirculating types for versatility.
- Cost-effective solution significantly cheaper than standard products.

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MISUMI Standard
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Cheaper Price
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Product Variety
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3D CAD Support
Product Overview of Linear Bushings
Product Feature of Linear Bushings
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 65% 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.

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

*Products of Linear Bushings 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

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

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 | ||
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| LCD | Smart phone | Semiconductor | ||
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Related Products of Linear Bushings
| Guide shaft Straight bar type | (Economy series) Linear bearing Standard type Single liner type | Shaft Collar Slit | ||
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| Linear Bushings Typical model: SFJ20-75 | Linear Bushings Typical model: C-LM8UU | Linear Bushings Typical model: SCS8-10 |
Accessories
Material
Hardness
Surface Treatment











