| 摘要 |
PROBLEM TO BE SOLVED: To stably secure cage strength at a high angle in a fixed type constant velocity universal joint employing eight torque transmission balls. SOLUTION: In BJ type and UJ type of fixed type constant velocity universal joints having eight torque transmission balls 30, a ratio occupied by a non-hardened layer in a pole 48 of a cage 40 is set to 0.30≤C/S≤0.75, where S is the cross area of the pole 48 of the cage 40, and C is the area of the non-hardened layer of the pole 48. COPYRIGHT: (C)2006,JPO&NCIPI
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