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Square Flange Linear Bushings Double Liner Standard (Part Numbers)
- Volume Discount
MiSUMi Economy
Square 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.): 6 and 40
● Overall Length Minimum/Maximum (mm.): 55 and 123
● Shape : Square Flange
● Material:
- Housing - SUJ2 Equivalent
- Ball - SUJ2 Equivalent
[Application]
It is used in industrial machinery such as conveyor systems, packaging machines, and robotic equipment.
Part Number
Configured Part Number is shown.
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.
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.
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.
■Material Specification Table of Linear Bushings
■ Dimension Specification Table of Linear Bushings
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 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.
■ Linear Bushings Test results
The Economy series product ensures smooth sliding of steel ball, which have good durability and low noise
*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
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.
■ Linear Bushings Test results
The Economy series product ensures smooth sliding of steel ball, which have good durability and low noise
*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
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 | ||
 Material |  Hardness |  Surface Treatment | Material | Material | ||||
| 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.
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 | ||
| Material | Hardness | Surface Treatment | Material | Material | |||
| 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
CAD Data download and 3D preview are not available because the part number has not yet been determined.
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- Please confirm the part number from "Specification / Dimension"on the left side, and then perform the CAD Data Download / 3D Preview operation.
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| Part Number |
|---|
| C-LMK10LUU |
| C-LMK25LUU |
| C-LMK30LUU |
| Part Number | Standard Unit Price | Minimum order quantity | 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) |
|---|---|---|---|---|---|---|---|---|---|---|---|
MYR 17.48 | 1 Piece(s) | Available | 1 Day(s) | 10 | 55 | 19 | 30 | 588 | 1100 | -0.018 | |
MYR 36.06 | 1 Piece(s) | Available | 1 Day(s) | 25 | 112 | 40 | 40 | 1560 | 3140 | -0.021 | |
MYR 48.28 | 1 Piece(s) | Available | 1 Day(s) | 30 | 123 | 45 | 40 | 2490 | 5490 | -0.021 |
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Basic Information
| Type | Flange | Flange Type | Standard Flange | Style | Standard |
|---|---|---|---|---|---|
| Outer Sleeve Material | SUJ2 Equivalent | Outer Sleeve 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 | Resin | Seal | With Seal |
| Greased Filled | Not 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.
Additional Products in this Category
- Flanged Linear Bushings - Compact Pilot Double Type
- Linear Bushings Straight Medium
- Linear Bushings Straight Short
- Linear Bushing LMF-L Type (Flange Type / Oval Type / Long Type)
- Linear Bushing LMK-ML Type (Flange Type / Square Shape / Long / Stainless Steel)
- Support Rail Block, Standard Type [SMYBR]
- Flanged Linear Bushings ULF-Shaped (U Ultra) Single Round-Shaped Flange
- Linear Bushing SBK Series (Square Flange Type)
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