| 摘要 |
A rolling member such as a bearing roller or the outer ring of a cam follower has improved strength and permits stable formation of oil films between its rolling surface and its mating surface. The workpiece is subjected to heat treatment while nitriding such that the residual compressive stress in the surface layer is not less than 600 MPa. The workpiece is then treated to form minute recesses in its surface so that such surface has a surface roughness parameter RMS of not less than 0.10 mu m, and a negative SK value. |
