| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a rolling bearing that has a longer rolling-fatigue resistant lifetime even under lubrication using a lubricant mixed with a foreign matter or under lubrication using a lubricant mixed with water. <P>SOLUTION: The rolling bearing has raceway rings 2a, 2b made of steel including≥0.65 mass% and≤1.10 mass% of C. A hardening layer is formed on the surface layer part of each raceway ring 2a, 2b by induction hardening so as to achieve≥20 vol.% of a remaining amount of austenite on the surface of each raceway ring while achieving≥200 MPa of a compressive residual stress in a depth direction at a depth in which a dynamic maximum shear stress when a dynamic load rating is applied becomes maximum. <P>COPYRIGHT: (C)2009,JPO&INPIT</p> |
