Patent ID: 7951009

Claim:
A fixed constant velocity universal joint comprising: an outward component having an inner spherical surface on which a plurality of track grooves are formed; an inward component having an outer spherical surface on which a plurality of track grooves are formed; a plurality of balls for transmitting torque that are interposed between the track grooves of the outward component and the track grooves of the inward component; and a cage interposed between the outward component and the inward component, the cage having pockets housing the balls, wherein the cage has four pockets including a pair of long pockets and a pair of short pockets, a circumferential direction spacing of the long pockets is wider than a circumferential direction spacing of the short pockets, the pair of long pockets are shifted by 180 degrees along a circumferential direction and the pair of short pockets are shifted by 180 degrees along the circumferential direction, the long pockets and the short pockets are alternately disposed along the circumferential direction, and each of the long pockets houses two balls and each of the short pockets houses one ball.