| 摘要 |
1. A sealing component for a surface which can move relative to a fixed frame in which it is mounted comprising a fixing heel (1, 6, 10) made of hard elastomer or plastomer and a sealing lip (2, 7,16) made of flexible elastomer or plastomer, characterized in that the said lip (2, 7, 16) made of flexible elastomeric or plastomeric material, the Shore A hardness of which is at most 75, is provided, in its zone of contact with the movable surface, with at least one rib (3, 8, 12) made of a hard elastomer or plastomer of low coefficient of friction, and in that the difference in hardness, expressed as Shore A hardness, between the lip (2) made of flexible material and the ribs (3, 8, 12) made of hard material is of the order 30. |
