| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a rolling bearing whereby a lifetime of a raceway ring can be elongated at a low cost. <P>SOLUTION: At least one of inner and outer raceway rings is formed by steel for a bearing which is hardened by heat treatment. Roller burnishing processing is applied on a raceway part of the raceway ring comprising the steel for the bearing. The hardness of a surface thereof is equal to or more than HRC 65, and a center line average roughness Ra of the surface is 0.1μm or less. <P>COPYRIGHT: (C)2004,JPO |
