Bearings

THK cross roller bearings feature cylindrical rollers arranged alternately at 90° to each other between the inner and outer rings. This allows a single bearing to simultaneously support radial loads, axial loads, and tilting moments, with high stiffness and rotational accuracy in a compact space. They are used in rotating tables, robot joints, machine tools, and measurement equipment. ATTI provides them upon request for quotes.

THK crossed roller bearings of the RU, RB, and RE series mainly differ in the structure of the inner and outer rings and the mounting methods.

- Series RU: features integrated inner and outer rings with mounting holes. It does not require a housing or a locking flange and can be used for the rotation of both the inner and outer rings.
- Series RB: has an outer ring made of two separable parts and a monoblock inner ring. It is particularly suitable for applications that require high precision in the rotation of the inner ring, such as rotating tables and industrial automation systems.
- Series RE: consists of an inner ring made of two parts and a monoblock outer ring. It is suitable for applications where the outer ring is the one that rotates.

These bearings are used in precision applications, including industrial robotics, rotating tables, and automated handling systems. The choice of series depends on the mechanical configuration, the ring intended for rotation, and the application requirements.