Patent ID: 7357724

Claim:
A constant velocity joint comprising: an outer joint member disposed on the outboard side of a drive axle for transmitting drive power to a wheel and having a plurality of track grooves in a spherical inner peripheral surface thereof, an inner joint member having a plurality of track grooves in a spherical outer peripheral surface thereof, torque transmitting balls disposed in a plurality of ball tracks formed by the opposed track grooves of both joint members, and a cage interposed between both joint members and receiving and holding said torque transmitting balls in a plurality of window-shaped pockets, wherein the track groove of said outer joint member has an inboard side with a linear form and an outboard side with a curved form; the track groove of said inner joint member has an inboard side with a curved form and an outboard side with a linear form; an opening formed at the outboard side of said cage has a larger diameter than an opening formed at the inboard side; a thickness of the inboard side of said cage is larger than a thickness of the outboard side thereof; and a total of six torque transmitting balls are respectively accommodated in the pockets of said cage.