| 摘要 |
In accordance with embodiments of the present invention there is provided a fixed type constant velocity joint comprising an outer ring (1) having an inner spherical surface (1b) formed with a plurality of track grooves (1a), an inner ring (2) having an outer spherical surface (2b) formed with a plurality of track grooves (2a), wedge-shaped ball tracks each defined by an outer ring track groove (1a) and an inner ring track groove (2a), which form a pair, and reduced in size from one end of the direction of the axis of the joint to the other end, torque transmitting balls (3) incorporated one in each ball track, and a cage (4) having pockets for holding the torque transmitting balls (3) and interposed between the inner spherical surface of the outer ring (1b) and the outer spherical surface of the inner ring (2b), wherein the center of curvature of the track grooves of the outer ring (1 a) and the center of curvature of the track grooves of the inner ring (2a) are offset from the center of the joint by the same distance to opposite sides, said fixed type constant velocity joint being characterized in that the axial position of the pockets of the cage (4) is shifted from the center of curvature of the cage (4) to the outer side of the track grooves of the outer ring (1 a).
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