FIXED TYPE CONSTANT VELOCITY UNIVERSAL JOINT

摘要

PROBLEM TO BE SOLVED: To provide a fixed type constant velocity universal joint which materializes the compactization and weight reduction while securing the strength of a cage. SOLUTION: A curvature center O10of an outer spherical face 4b of a cage 4 and a curvature center O20of an inner spherical face 4c of the cage 4 are offset by only an equal distance on a mutually opposite side in the axial direction on a joint opening side and joint depth side with respect to a joint center O, respectively. In a state where a joint operating angle is 0°, an offset angle θCAGEof the cage formed of a straight line connecting curvature centers O10, O20of the inner and outer spherical faces 4b, 4c of the cage 4 to a center Q of a torque transmission ball 3 and a straight line connecting a center Q of the torque transmission ball 3 to the joint center O is set to a range of 2.7°≤θCAGE≤5.7°. COPYRIGHT: (C)2009,JPO&INPIT