Caged Ball LM Guide Miniature Type Model SRS
Since its LM rail has a low sectional height, this LM Guide achieves a lightweight and compact structure.
Size : 5,7,9,12,15,20,25
Types
Highlight feature tags
- Long block LM Guide
- Wide block
- Bolts mounted from above
- Short block (LM Guide)
- Short block (LM Guide)
- Bolts mounted from above
Basic load rating (kN): Basic dynamic load rating 1.09 to 4.50 / Basic static load rating 0.964 to 4.24
Size :
7,9,12,15
- Short block (LM Guide)
- Wide block
- Bolts mounted from above
Basic load rating (kN): Basic dynamic load rating 1.38 to 6.64 / Basic static load rating 1.35 to 6.78
Size :
7,9,12,15
- Bolts mounted from above
Basic load rating (kN): Basic dynamic load rating 0.439 to 16.5 / Basic static load rating 0.468 to 22.3
Size :
5,7,9,12,15,20,25
- Wide block
- Bolts mounted from above
Basic load rating (kN): Basic dynamic load rating 0.584 to 9.12 / Basic static load rating 0.703 to 8.59
Size :
5,7,9,12,15
- Long block LM Guide
- Bolts mounted from above
Basic load rating (kN): Basic dynamic load rating 0.515 to 9.71 / Basic static load rating 0.586 to 11.9
Size :
5,7,9,12,15
- Long block LM Guide
- Wide block
- Bolts mounted from above
Basic load rating (kN): Basic dynamic load rating 0.746 to 12.4 / Basic static load rating 0.996 to 15.3
Size :
5,7,9,12,15
Features
Structure and Features
Caged Ball LM Guide model SRS has a structure where two raceways are incorporated into the compact body, enabling the model to receive loads in all directions, and to be used in locations where a moment is applied with a single rail. In addition, use of ball cages eliminates friction between balls, thus achieving high speed, low noise, acceptable running sound, long service life, and long-term maintenance-free operation.
Low Dust Generation
Use of ball cages eliminates friction between balls and retains lubricant, thus achieving low dust gen-eration. In addition, the LM block and LM rail use stainless steel, which is highly resistant to corrosion.
Compact
Since SRS has a compact structure where the rail cross section is designed to be low and that contains only two rows of balls, it can be installed in space-saving locations.
Lightweight
Since part of the LM block (e.g., around the ball relief hole) is made of resin and formed through insert molding, SRS is a lightweight, low inertia type of LM Guide.
Flatness of the LM Rail and the LM Block Mounting Surface
Since the Model SRS has Gothic-arch grooves, any precision errors in the mounting surface may negatively affect its operability. Therefore, we recommend using SRS on mounting surfaces made with high precision.
| Model No. | Flatness error |
| SRS 5 | 0.015/200 |
| SRS 7 | 0.025/200 |
| SRS 9 | 0.035/200 |
| SRS 12 | 0.050/200 |
| SRS 15 | 0.060/200 |
| SRS 20 | 0.070/200 |
| SRS 25 | 0.070/200 |
- Note 1) As many factors can affect the mounting precision, we recommend using values 70% or less than those shown.
- Note 2) The above figures apply to normal clearances.When using two or more rails with C1 clearance, we recommend using values 50% or less than those shown.
Detailed information for each model number
Dimensional drawing/Dimensional table
THK Online Services
Member-Exclusive Content
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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. |
Standard Length and Maximum Length of the LM Rail
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. |
