| 摘要 |
PROBLEM TO BE SOLVED: To provide a constant velocity joint capable of improving an assembly workability of a resin boot to an outer circumferential surface of an outer ring and also improving sealability.SOLUTION: This invention comprises an outer ring 20 in which three raceway grooves 21 extending in an axial direction are formed at an inner circumferential surface and three outer circumferential grooves 22 extending in a circumferential direction at an outer circumferential surface are provided; a boot 5 having a large diameter fixing part 6 fitted to an end part outer circumferential surface 29 at one side in the axial direction of the outer ring 20 and molded by resin material; and a large diameter clamp member 41 for fastening the outer circumferential surface 62 of the large diameter fixing part 6. The large diameter fixing part 6 is constituted in such a way that its outer circumferential surface 62 is formed into a circular outer circumferential shape, thick parts 7 and thin parts 8 are alternately arranged in the circumferential direction in compliance with an outer circumferential shape of the outer ring 20, its diameter is gradually expanded toward an axial outward direction, the central part of the outer circumferential surface 62 of each of the thick parts 7 is provided with one V-groove 71 in which a radial sectional shape is substantially V and both two end locations of the inner circumferential surface 61 are provided with V-grooves 71 in which a radial sectional shape is substantially V, and the V-grooves 71 are formed to have a groove depth in which it is gradually shallow from the axial end part to the inside part. |
