Double Row Angular Contact Ring Double-Row Angular Contact Roller Ring Model RW
Achieves high rigidity and precision by increasing the number of rollers with a double-row structure.
High rigidity and regulated wobbling accuracy make it optimal for rotating mechanisms in machines with multiple functions.
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 58.4 to 214 / Basic static load rating 158 to 647
Features
High Rigidity
An increased number of rollers achieves high rigidity.
The Model RW uses multiple raceways and small-diameter rollers to increase the overall roller quantity. This achieves much higher rigidity when compared to conventional THK cross roller rings with the same inner and outer dimensions.
High Accuracy
Wobbling accuracy of 2 μm allows for high rotational accuracy.
With the Model RW, it is possible to specify the runout accuracy (wobbling accuracy) of actual operating positions such as machining position and measurement position.
Easy to Install
Mounting holes in the inner and outer rings reduce the number of design steps and components.
The Model RW has mounting holes in the inner and outer rings, eliminating the need for other mounting components and allowing it to attach directly to shafts and housings.
Lineup
| Model No. | Inner diameter | Outer diameter |
| RW228 | 160 | 295 |
|---|---|---|
| RW297 | 210 | 380 |
| RW445 | 350 | 540 |
Available in dimensions other than those listed above. See p. 10 for details.
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. |
Model Number Coding
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. |
