| 摘要 |
<P>PROBLEM TO BE SOLVED: To obtain a structure in which an outer ring and a retaining plate can be stably and easily joined. <P>SOLUTION: An outer ring and a retaining plate are joined via locking rings 11a, 11b, which are in segmental ring shapes and are provided with large-diameter locking portions 17, 17 at three points. During this joining work, the respective large-diameter locking portions 17, 17 are crushed inward in a radial direction. Therefore, the both ends of the locking ring 11a, 11b are not protruded more than the large-diameter locking portions 17, 17 at two points. By this configuration, even when the respective large-diameter locking portions 17, 17 are crushed inward in the radical direction, the both ends of the locking ring 11a, 11b are prevented from greatly protruding outward in the radial direction. <P>COPYRIGHT: (C)2012,JPO&INPIT |
