| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a cage of a roller bearing capable of extending the service life of the bearing. <P>SOLUTION: A column part 15a provided in the cage includes a pair of inclined parts 26a and 26b slantingly extending to the rotational axis direction of the cage. Side wall surfaces of a pocket in the pair of inclined parts 26a and 26b have areas of extending along the rotational axis direction of the cage, that are, roller guide parts 35a and 35b for guiding a roller. Outer diameter surfaces 46a and 46b of the inclined parts 26a and 26b constitute recessed parts 43a and 43b recessed to the inner diameter side more than outer diameter surfaces 42a and 42b of extending parts 27a and 27b. <P>COPYRIGHT: (C)2013,JPO&INPIT |
