| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a technology capable of restricting trapping of a foreign material between a seal ring and a housing, and capable of restricting wear of the housing and the seal ring. <P>SOLUTION: The diameter size of a second seal portion 3 is provided larger than the diameter size d2 of an inner peripheral surface 81 of a housing 80 so that the difference in diameter size between the second seal portion 3 and the inner peripheral surface 81 of the housing 80 is less than 1.0 mm prior to providing the ring body in an annular gap. <P>COPYRIGHT: (C)2010,JPO&INPIT |
