| 摘要 |
PROBLEM TO BE SOLVED: To provide a constant velocity universal joint for developing highly precise sealing function while preventing the flow of lubricant (grease) from the inside to the outside of the joint. SOLUTION: The constant velocity universal joint comprises a boot 32 having a small end portion 32b to be fitted to a shaft outer peripheral face 28a connected to an inner ring 21. A peripheral recessed groove 37 is provided in the shaft outer peripheral face 28a inside of the joint beyond a fitted site of the small end portion 32b. At the small end portion 32b of the boot 32 inside of the joint, a lip portion 38 is formed which abuts an inner face 37a of the peripheral recessed groove 37 of a shaft 28. COPYRIGHT: (C)2007,JPO&INPIT
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