THK RU, RU-H & RUV Cross-Roller Ring
THK RU, RU-H and RUV are integrated cross-roller rings for accurate rotary motion. The inner and outer rings are integrated with mounting holes on both rings. This allows direct installation without a separate flange or housing.
The RU and RU-H use spacer retainers for low friction and stable rotational torque. The RU-H provides higher rigidity and load ratings than existing products with the same dimensions. The RUV uses a full-roller design for lower-speed rotary applications with higher loads.
The RU range supports both inner-ring and outer-ring rotation. Models are available from RU42 to RU445, with dynamic load ratings from 7.35 to 222 kN. RU-H and RUV are also available in several sizes for high-load rotary applications.
