| 摘要 |
<p>A first metal seal ring (11) is fitted to each end of the outer race (1) and a second metal seal ring (14) is fitted to the end of each inner race (2) so as to be positioned opposite to the corresponding first ring (11). Escape of each inner race (2) is prevented by engagement of a stop (15) on the first ring (11) with a bent end (20) of the second ring (14). An elastic lip seal (19) made of rubber or synthetic resin is interposed between the rings (11, 14) to prevent the penetration of foreign matter such as mud, sand, water, and grass.</p> |
