Linear Bushing - Compact, Single / Double[RoHS Compliant]
Brand :
MISUMI
Caution
- Bushings are applied with anti-rust oil harmless to lubricants. After cleaning (recommended cleaning method: ultrasonic cleaner or white kerosene) and drying the bushings, grease application is recommended before use.
Product Description
Linear Bushing are an economy item, The price is cheaper than the MISUMI standard product.They offer a wide variety of sizes to choose from.
RoHS10 compliant. Medium-precision linear bushing with relaxed O.D. tolerances such as I.D. and L dimension.
[Feature]
● Type : Compact
● Inner Diameter Minimum/Maximum (mm.) : 6 and 16
● Operating Temperature (℃) : －20 to 80°C
● Material
Housing and Ball - SUJ2 Equivalent
Retainer - Plastic
[Application]
Linear Bushing are commonly used in various applications in factory automation systems
Dimensional Drawing of Linear Bushings
Type Linear Bushings | Outer Cylinder | Balls | Retainer | Operating Ambient Temperature | [A] Accessory | |||
Single | Double | [M] Material | [H] Hardness | [S] Surface Treatment | [M] Material | [M] Material | ||
C-LMK | C-LMKW | SUJ2 Equivalent | 58HRC or more | — | SUJ2 Equivalent | Plastic | －20 to 80°C | Seal [M] Material Nitrile Rubber |
Specification Table of Linear Bushings
Ordering Example of Linear Bushings
| Part Number (Type, dr) |
| C-LMK6 |
| C-LMKW12 |
■Single Type
dr | D | L | B | W | D1 | Eccentricity (Max.) | Balls Rows | Basic Load Rating of Linear Bushings | Reference Mass | |||||
Tolerance | Tolerance | Tolerance | Tolerance | C (Dynamic) N | Co (Static) N | (g) | ||||||||
6 | +0.003 -0.012 | 10 | +0.006 -0.013 | 19 | +0.2 -0.4 | 11.3 | 0 -0.4 | 1.15 | 9.6 | 0.024 | 6 | 131 | 155 | 6 |
8 | 13 | 24 | 15.3 | 12.4 | 235 | 277 | 12 | |||||||
10 | 17 | 29 | 19.4 | 16.2 | 368 | 433 | 26 | |||||||
12 | 19 | +0.006 -0.015 | 30 | 20.4 | 1.35 | 18 | 381 | 449 | 32 | |||||
16 | 26 | 37 | 23.3 | 24.9 | 608 | 716 | 58 | |||||||
■Double Type of Linear Bushings
[ ! ] Anti-rust oil is applied at the time of delivery.
[ ! ]Linear Bushings, For shaft and housing tolerances, see "Recommended Tolerance of Shaft Diameter / Housing Diameter."
kgf = N × 0.101972
dr | D | L | B | W | D1 | Eccentricity (Max.) | Balls Rows | Basic Load Rating | Allowable Static Moment (N⋅m) | Reference Mass | |||||
Tolerance | Tolerance | Tolerance | Tolerance | C (Dynamic) N | Co (Static) N | (g) | |||||||||
6 | +0.003 -0.016 | 10 | +0.006 -0.015 | 35 | +0.3 -0.6 | 24.8 | 0 -0.6 | 1.15 | 9.6 | 0.03 | 6 | 206 | 309 | 2.46 | 12 |
8 | 13 | 45 | 32.8 | 12.4 | 383 | 555 | 5.76 | 24 | |||||||
10 | 17 | 55 | 41.4 | 16.2 | 585 | 867 | 10.99 | 52 | |||||||
12 | 19 | 0.006 -0.018 | 57 | 43.4 | 1.35 | 18 | 608 | 899 | 11.85 | 64 | |||||
16 | 26 | 70 | 49.8 | 24.9 | 965 | 1431 | 23.48 | 116 | |||||||
[ ! ]Linear Bushings, For shaft and housing tolerances, see "Recommended Tolerance of Shaft Diameter / Housing Diameter."
kgf = N × 0.101972
■Linear Bushings Recommended Tolerance of Shaft Diameter / Housing Diameter
dr | Shaft Dia. | Housing Dia. | |
g6 Tolerance | Tolerance | ||
6 | −0.004 −0.012 | 10 | +0.024 +0.006 |
8 | −0.005 −0.014 | 13 | |
10 | 17 | +0.027 +0.006 | |
12 | −0.006 −0.017 | 19 | |
16 | 26 | ||
Cautions/Prohibitions
■Regular Maintenance
(1) For grease lubrication, apply grease to the ball rows within the linear bushings before use, then periodically apply grease during the use.
The grease has an effect of reducing friction by forming a layer between the balls and shaft rolling surfaces, preventing seizures.
Grease loss and deterioration will cause shorter life of linear guides.
(2) Recommended Grease: Lithium soap based grease
(3) Recommended Lubrication Intervals: Every 6 month
Recommended lubrication is that every 3 months when travel distance is extensive, or every 1000 km when travel distance exceeds 1000 km within the period.
(4) If large moment load (offset load) is to be applied, Short / Single Type Linear Bushings are not suitable.
Use of Double Type or Multiple Linear Bushings is recommended.
■Dust-Proofing Measures
Please be aware that if foreign objects or dusts get inside the linear bushing, it will interfere with the circulation of the steel balls and cause failures.
Please attach a dust cover or protection cover for harsh usage environments.
■Use of a hardened shaft with g6 tolerance is recommended for MISUMI Linear Bushings.
(1) For grease lubrication, apply grease to the ball rows within the linear bushings before use, then periodically apply grease during the use.
The grease has an effect of reducing friction by forming a layer between the balls and shaft rolling surfaces, preventing seizures.
Grease loss and deterioration will cause shorter life of linear guides.
(2) Recommended Grease: Lithium soap based grease
(3) Recommended Lubrication Intervals: Every 6 month
Recommended lubrication is that every 3 months when travel distance is extensive, or every 1000 km when travel distance exceeds 1000 km within the period.
(4) If large moment load (offset load) is to be applied, Short / Single Type Linear Bushings are not suitable.
Use of Double Type or Multiple Linear Bushings is recommended.
■Dust-Proofing Measures
Please be aware that if foreign objects or dusts get inside the linear bushing, it will interfere with the circulation of the steel balls and cause failures.
Please attach a dust cover or protection cover for harsh usage environments.
■Use of a hardened shaft with g6 tolerance is recommended for MISUMI Linear Bushings.
How to Use
| Illustration | Instructions for Use |
 | If large load (offset load) is to be applied, Single Type Linear Bushings are not suitable. Use of Double Type or Multiple Linear Bushings is recommended. |
 | Linear Bushings are not suitable for rotating motion due to their structure. Forcing to rotate may cause failures. |
 | Linear Bushings are not suitable for usage with repetitive insertion and extraction of shafts. |
 | When assembling with linear shafts, forcing the shaft into the bushing with angular misalignment may cause the ball retainers to deform and balls to fall out. Be sure to align the centers and insert the shaft gently. |
App. Example
▲Oil Seal Press Fitting Jig