Full-Ball LM Guide Miniature Model RSR
These models are miniature LM Guides capable of receiving loads in all directions and operating adequately under a small moment load despite being single-rail guides.
Size : 2,3,14
Types
Highlight feature tags
- Long block LM Guide
- Wide block
- Bolts mounted from above
- Bolts mounted from above
Basic load rating (kN): Basic dynamic load rating 0.18 / Basic static load rating 0.27
Size :
3
- Wide block
- Bolts mounted from above
Basic load rating (kN): Basic dynamic load rating 0.25 to 6.01 / Basic static load rating 0.47 to 9.08
Size :
3,14
- Long block LM Guide
- Bolts mounted from above
Basic load rating (kN): Basic dynamic load rating 0.214 to 0.3 / Basic static load rating 0.384 to 0.44
Size :
2,3
- Long block LM Guide
- Wide block
- Bolts mounted from above
Basic load rating (kN): Basic dynamic load rating 0.395 to 0.39 / Basic static load rating 0.682 to 0.75
Size :
2,3
Features
Structure and Features

Balls roll in two rows of raceways precision-ground on an LM rail and an LM block, and end plates incorporated in the LM block allow the balls to circulate. Since balls circulate in a compact structure, the LM block is able to provide infinite straight motion and thus infinite stroke. The LM block is designed to have high rigidity in a limited space, and in combination with large-diameter balls, demonstrates high rigidity in all directions.
Super Compact
This model is a highly reliable LM System because it is not susceptible to cage displacement, a problem common in cross-roller guides, ball slides, and other products with finite stroke.
Capable of Receiving a Load in Any Direction
These models are capable of receiving loads in all directions, and a single-rail guide can adequately operate under a small moment load. Model RSR-W, in particular, has a greater number of load-bearing balls and a broader LM rail to increase its rigidity against a moment. This allows it to achieve linear motion with a more compact structure greater durability than a pair of parallel linear bushes.
Corrosion Prevention
The LM rail, LM block, and balls are made of stainless steel, which has high corrosion resistance.
Accuracy of the Mounting Surface
Model RSR uses Gothic-arch grooves in the ball raceways. When two rails of Model RSR are used in parallel, any error in accuracy of the mounting surface may increase rolling resistance and negatively affect the smooth motion of the guide. For specific accuracy of the mounting surface, see Flatness of the Mounting Surface.
Detailed information for each model number
Dimensional drawing/Dimensional table
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| Products | Contents |
|---|---|
| LM Guide | LM rail standard lengths and maximum length, tapped-hole type LM rail, frame for LM rail clamps, steel plate for LM rail clamps, etc. |
| Ball Screw | Axial clearance, maximum manufacturing length of shaft, etc. |
| Actuator | Movable part mass, etc. |
Standard Lengths and Maximum Lengths of LM Rails
THK Online Services
Member-Exclusive Content
These contents can be accessed
after registering as a member.
Benefit 1: Useful features
-
Easy product comparisonsHighlight feature -
Save items for laterreview Favorites feature
Benefit 2: Exclusive content
| Products | Contents |
|---|---|
| LM Guide | LM rail standard lengths and maximum length, tapped-hole type LM rail, frame for LM rail clamps, steel plate for LM rail clamps, etc. |
| Ball Screw | Axial clearance, maximum manufacturing length of shaft, etc. |
| Actuator | Movable part mass, etc. |
Tapped-hole LM Rail Type of Model RSR
THK Online Services
Member-Exclusive Content
These contents can be accessed
after registering as a member.
Benefit 1: Useful features
-
Easy product comparisonsHighlight feature -
Save items for laterreview Favorites feature
Benefit 2: Exclusive content
| Products | Contents |
|---|---|
| LM Guide | LM rail standard lengths and maximum length, tapped-hole type LM rail, frame for LM rail clamps, steel plate for LM rail clamps, etc. |
| Ball Screw | Axial clearance, maximum manufacturing length of shaft, etc. |
| Actuator | Movable part mass, etc. |