Basic Structure of TBIMOTION Actuator Adopts the advantages of the TBI MOTION linear guides and screws and designs the nuts and block into an integral mechanism. With the highly rigid U-Rail track optimized section, it saves the most space and reduces the time for assembly. This ensures its demand for high rigidity and high accuracy. The ball rolling face adopts an excellent design of a 2-row Gothic arc and 45° contact angle. Moreover, the design allows the X-axis and Y-axis to bear loads from all directions.