| 摘要 |
PROBLEM TO BE SOLVED: To prevent chipping of shoulder parts of guide grooves and generation of wear etc., and to improve durability by reducing bearing pressure with respect to the guide grooves by contact with balls. SOLUTION: In this constant velocity joint having six balls 28, when pitch circle diameter of the first guide grooves 26a to 26f formed on an inner face of an outer cup 16 is outer PCD and pitch circle diameter of the second guide grooves 32a to 32f formed on an outer face of an inner ring 34 is inner PCD, a PCD clearance comprising a difference between the outer PCD and the inner PCD (outer PCD - inner PCD) is set within 0 to 100μm. COPYRIGHT: (C)2006,JPO&NCIPI
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