Bearing Retaining Mechanism With Bush to Protect Rolling Surface

A buffer member is introduced as an intermediary component between the restriction member and the carrier. This buffer member absorbs or distributes the fastening torque, preventing it from being directly transmitted to the rolling surface. The buffer member acts as a mediator that decouples the fastening function from the rolling surface, thereby maintaining both axial position stability and rolling surface precision.

The connection structure is segmented into multiple functional components: the restriction member for axial positioning, the buffer member for torque absorption, and the carrier for support. This segmentation allows each component to perform its specific function independently, preventing the fastening torque from affecting the rolling surface while maintaining axial stability.

The buffer member serves as a protective intermediary that shields the rolling surface from the harmful effects of fastening torque. By positioning the buffer member between the restriction member and the carrier, it prevents torque transmission that would otherwise compromise the rolling surface integrity, thereby enhancing reliability while maintaining crankshaft restraint.

The buffer member provides beforehand cushioning by absorbing or mitigating the fastening torque before it can reach the rolling surface. This preventive measure ensures that the rolling surface is protected from potential damage during the fastening process, maintaining its circularity and cylindricity for reliable operation.