| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a rolling bearing with a retainer, capable of reducing friction torque even if an amount of lubricating oil is increased. <P>SOLUTION: The rolling bearing with the retainer includes an inner ring corresponding member 20, an outer ring corresponding member 10, and rolling elements 30 which are arranged between the both members and retained in the retainer 40. The retainer 40 includes a pair of annuluses 44, and a plurality of columnar parts 46 which connects the pair of annuluses and forms pockets 42 in a circumferential direction at regular intervals. A surface facing to the rolling element 30 of the columnar part 46 is formed such that a surface 46f at least on a front side in a rotating direction of the retainer has a curvature in the opposite direction from that of a curvature of the facing rolling element 30 on a cross section perpendicular to a rotation center axis of the retainer. <P>COPYRIGHT: (C)2012,JPO&INPIT |
