SEAL RING, AND ROLLER BEARING UNIT WITH SEAL RING |
|||||||
| 申请号 | EP03712853 | 申请日 | 2003-03-24 | 公开(公告)号 | EP1496293A4 | 公开(公告)日 | 2007-12-12 |
| 申请人 | NSK LTD; | 发明人 | TAKEHARA TETSU; YUKAWA KINJI; | ||||
| 摘要 | A bearing unit with a seal ring capable of reducing a rotating resistance while assuring durability and sealability, wherein a minimum wall thickness part (30) having a minimum thickness is provided near the base end part of a seal lip (22a) projected sideway so as to come into slidable contact with a mating surface, a maximum wall thickness part (31) having a maximum thickness is provided on the minimum wall thickness part (30) at a portion adjacent to the tip side of the minimum wall thickness part, the thickness of the seal lip (22a) in an area starting at the maximum wall thickness part (31) toward the tip edge thereof is gradually decreased, and the ratios of the thicknesses at the parts of the seal lip (22a) are properly controlled. | ||||||
| 权利要求 | |||||||
| 说明书全文 | |||||||
QQ群二维码
意见反馈
意见反馈