| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce vibration and noise, by restraining the occurrence of a collision between both end parts in the axial direction of a cage and a guide surface in the axial direction of the cage, while reducing bearing rotational torque, and restraining a variation. <P>SOLUTION: A ball 21 is respectively and rollingly held in both end parts in the axial direction (both right and left end parts in Fig.) 20a of the cage 20. The ball 21 is respectively interposed between both end parts 20a in the axial direction of the cage 20 and the guide surface 2 in the axial direction of the cage for regulating a position of the cage 20 in the axial direction (in the lateral direction in Fig.), and is rollingly contacted with both end parts 20a in the axial direction of the cage 20 and the guide surface 2 in the axial direction of the cage. <P>COPYRIGHT: (C)2008,JPO&INPIT |
