抄録
The simulation of rolling contact fatigue strength of traction drive elements was proposed. It can consider the effect of size and distribution of inclusions in the material and the traction force generates on the contact surface. In this study, the rolling contact fatigue strengths in case of using ordinary and clean steel were estimated by using that simulation. The distributions and the densities of inclusions were decided by the observation of specimens. In case of using ordinary steel, 858 MPa of average rolling contact fatigue strength was obtained. The case of clean steel, 944 MPa was obtained, and it exceled 10% than the case of ordinary steel.