| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a reciprocating seal capable of improving sealability while improving friction characteristics. <P>SOLUTION: A main seal lip 32 is composed in a two-stage lip structure comprising a first lip 32a and a second lip 32b. On a slide surface of the second lip 32b, a plurality of axially extended projections 34 are provided. <P>COPYRIGHT: (C)2004,JPO |
