Cross-Roller Ring Model RBU
The integrated inner/outer ring structure improves component rigidity over the RB, which has a split outer ring. This mitigates the impact of the housing’s accuracy and rigidity, providing stable performance.

Types
Highlight feature tags
- High rigidity
- Inner ring rotation
- Outer ring rotation
- Integrated inner / Outer ring type
- Large load capacity
- Rotation accuracy

- High rigidity
- Inner ring rotation
- Outer ring rotation
- Integrated inner / Outer ring type
- Large load capacity
- Rotation accuracy
Basic load rating (radial) (kN): Basic dynamic load rating 3.23 to 41.7 / Basic static load rating 3.1 to 82.9
Features
Structure and Features
Because the RBU features cylindrical rollers that are arranged orthogonally between spacer cages inside a 90° V-shaped raceway, a single bearing can handle radial, axial, and moment loads in all directions. In addition, it can be used for both inner-ring and outer-ring rotation because neither the inner nor outer ring has a split structure.




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. |