| 摘要 |
Provided is a fixed type constant velocity universal joint, which is capable of preventing heat generation when high load is applied or during high-speed rotation to improve durability, and further, suppressing a contact resistance between a cage and inner and outer races to improve constant velocity performance. A curvature center of a track groove (22) of an outer joint member and a curvature center of a track groove (25) of an inner joint member have an offset of 0 in an axial direction. Track grooves (22a, 22b, 25a, 25b) of the outer joint member and the inner joint member, which are tilted in opposite directions from each other with respect to an axis line, are alternately formed in a circumferential direction. An outer surface (24) of the inner joint member is a spherical surface which is to be brought into sliding contact with an inner spherical surface (28b) of the cage (28). An inner surface (21) of the outer joint member is a cylindrical surface. |
