| 摘要 |
PROBLEM TO BE SOLVED: To provide a low-cost fixed type constant velocity universal joint which facilitates formation of track grooves of an outside joint member and which can secure assembling property of a ball and strength of a cage in a fixed type joint part. SOLUTION: The fixed type constant velocity universal joint is arranged with the fixed type joint part 10 on one end side of the single outside joint member 30 and a sliding type joint part 20 on the other end side. The fixed type joint part 10 and the sliding type joint part 20 are connected via a spherical pair 40 comprising a convex spherical surface 25 and a concave spherical surface 15. In the fixed type constant velocity universal joint, the track grooves 18 extending to the axial direction are formed at a plurality of places in the circumferential direction of an inner peripheral surface of the fixed type joint part 10 in the outside joint member 30. The track groove 18 has a circular shape in which a curvature center O<SB>11</SB>is offset from a joint center O<SB>10</SB>of the fixed type joint part 10 to the one end side of the outside joint member 30 on a joint axis. COPYRIGHT: (C)2011,JPO&INPIT
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