| 摘要 |
PROBLEM TO BE SOLVED: To provide a sealing structure for a constant velocity universal joint boot for exhibiting stable sealing performance over a long period while holding high sealing performance even in severe working environment under high temperature conditions. SOLUTION: The sealing structure is provided for sealing between a shaft 9 connected to an inside joint member of a constant velocity universal joint and a constant velocity universal joint boot 1. On a shaft fixed portion 11 of the boot 1 to which a boot band 18 is fastened, an annular protruded portion 25 is provided to be pressed against the shaft 9. The annular protruded portion 25 has a protruded body 27 protruded from the inner diameter face of the shaft fixed portion 11 toward the inner diameter, and a small protrusion 26 protruded from the inner diameter end of the protruded body 27 toward the inner diameter so as to be crushed in close contact with the shaft. COPYRIGHT: (C)2008,JPO&INPIT
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