| 摘要 |
PROBLEM TO BE SOLVED: To provide an inner joint portion for a constant velocity joint capable of being easily and inexpensively manufactured. SOLUTION: An outer spherical guide face 3 is formed to guide a ball cage 24 of the constant velocity joint, a plurality of ball raceways 4 divided in the circumferential direction are formed on the spherical guide face 3 to receive balls 25 for transmitting torque, and the ball raceways 4 respectively have one first raceway section 11 machined hard to guide the plurality of balls 25, and a second raceway section 12 having no guide function for the plurality of balls 25 and not machined. COPYRIGHT: (C)2007,JPO&INPIT |
