Patent ID: 6506122
Filing Date: 2003-01-14
Classification: F16D,Y10S

Abstract:
A constant velocity universal joint comprising:an outer joint member having eight axially extending curved guide grooves formed in a spherical inner surface thereof; an inner joint member having eight axially extending curved guide grooves formed in a spherical outer surface thereof; eight torque transmitting balls disposed in eight ball tracks defined between the guide grooves in said outer joint member and the guide grooves in said inner joint member corresponding thereto; and a cage having pockets for retaining said torque transmitting balls, respective centers of the guide grooves in said outer and inner joint members, respectively, being offset axially with respect to respective spherical centers of said inner and outer surfaces by an equal distance (F) in opposite directions, wherein an axial initial clearance between the pockets of said cage and said torque transmitting balls is within a range âˆ’30 to +10 &mgr;m.