Caged Ball LM Guide ISO-Compliant Dimensions Super-Low Waving Model SPH
By adopting eight rows of raceways and small-diameter balls, the number of load-bearing balls within the LM block has been increased. This in turn enables the highest level of waving performance among THK LM Guide products, with super-low waving on a nanometer-level scale.
Dimensions conform to globally standard ISO specifications (ISO 12090-1:2011 Rolling Bearings) even with an eight-row structure.This product comes in four sizes ranging from 25 to 45, and a lineup of six block types is available: C/LC, V/LV, and R/LR.
Size : 25,30,35,45
Types
Highlight feature tags
- Long block LM Guide
- Bolts mounted from above and below
- Bolts mounted from above
- Bolts mounted from above and below
Basic load rating(kN)：Basic dynamic load rating 16.9 to 45.4 ／ Basic static load rating 35.3 to 89
Size :
25,30,35,45
- Long block LM Guide
- Bolts mounted from above and below
Basic load rating(kN)：Basic dynamic load rating 19.7 to 54.7 ／ Basic static load rating 43.9 to 116
Size :
25,30,35,45
- Bolts mounted from above
Basic load rating(kN)：Basic dynamic load rating 16.9 to 45.4 ／ Basic static load rating 35.3 to 89
Size :
25,30,35,45
- Long block LM Guide
- Bolts mounted from above
Basic load rating(kN)：Basic dynamic load rating 19.7 to 54.7 ／ Basic static load rating 43.9 to 116
Size :
25,30,35,45
- Bolts mounted from above
Basic load rating(kN)：Basic dynamic load rating 16.9 to 45.4 ／ Basic static load rating 35.3 to 89
Size :
25,30,35,45
- Long block LM Guide
- Bolts mounted from above
Basic load rating(kN)：Basic dynamic load rating 19.7 to 54.7 ／ Basic static load rating 43.9 to 116
Size :
25,30,35,45
Features
Structure and Features
Super-Low Waving
By adopting eight rows of raceways and small-diameter balls, the number of load-bearing balls within the LM block has been increased. This in turn enables the highest level of waving performance among THK LM Guide products, with super-low waving on a nanometer-level scale.
Waving Evaluation
| Legend | Model No. | Max. waving amplitude | Avg. waving amplitude |
|---|---|---|---|
| － | Existing products | 0.0634μm | 0.0505μm |
| － | SPH25 | 0.0120μm | 0.0088μm |
ISO-Compliant Dimensions
Dimensions conform to globally standard ISO specifications (ISO 12090-1:2011 Rolling Bearings) even with an eight-row structure. This product comes in four sizes ranging from 25 to 45, and a lineup of six block types is available: C/LC, V/LV, and R/LR.
The flange of the LM block has tapped holes. It can be mounted from the top or the bottom. It is used in places where the table cannot have through holes for mounting bolts.
The LM block has a smaller width (W) and tapped holes. It is used in places where the space for table width is limited.
The LM block has a smaller width (W) and tapped holes. It is used in places where the space for table width is limited. It maintains the same height dimension as the Full-Ball LM Guide Model HSR-R.
Advantages of Caged Ball Technology
This product adopts ball cages, which are a core piece of THK's technology that has been cultivated over many years. Use of a ball cage that retains balls as they recirculate eliminates friction between balls and increases grease retention to achieve long service life and long-term maintenance-free operation. In addition, retaining balls as they recirculate ensures smooth movement.
4-Way Equal Load
This product is designed to equally bear loads applied to the LM block from four directions (radial, reverse-radial, and horizontal). As a result, this model can be used in any orientation, enabling a wide variety of applications.
Detailed information for each model number
Dimensional drawing/Dimensional table
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Member-Exclusive Content
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after registering as a member.
Benefit 1: Useful features
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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 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. |
