| 摘要 |
Provided is a constant velocity universal joint capable of performing smooth operation even under load and in high speed rotation, and also capable of suppressing heat generation and enhancing durability, specifically, a fixed type constant velocity universal joint capable of increasing easiness of ball assembly and enhancing cage strength. An offset in an axial direction between a center of curvature of each of track grooves (22) of an outer joint member (23) and a center of curvature of an inner surface (21) of the outer joint member (23), and an offset in the axial direction between a center of curvature of each of track grooves (25) of an inner joint member (26) and a center of curvature of an outer surface (24) of the inner joint member (26) are each set to zero. The track grooves (22) of the outer joint member (23) and the track grooves (25) of the inner joint member (26) are each inclined with respect to an axial line. A circumferential length of each of pockets (28) of a cage (29) is set so that two of the pockets (28) allow balls to be assembled therein at one time under a state in which the two of the pockets (28) are exposed from the outer joint member (23) through inclination of the cage (29) at a predetermined angle. |
