Patent ID: 7686695

Claim:
A constant velocity joint in the form of a counter track joint comprising: an outer joint part having a first longitudinal axis (A 12 ) and comprising first outer ball tracks and second outer ball tracks; an inner joint part having a second longitudinal axis (A 15 ) and comprising first inner ball tracks and second inner ball tracks; the first outer ball tracks and the first inner ball tracks form first pairs of tracks; the second outer ball tracks and the second inner ball tacks form second pairs of tracks; the pairs of tracks each accommodate a torque transmitting ball; a ball cage is positioned between the outer joint part and the inner joint part and comprises circumferentially distributed cage windows which each receive at least one of the balls; when the joint is in the aligned condition, the first pairs of tracks open in a central joint plane (E) in a first direction R 1 , and when the joint is in the aligned condition, the second pairs of tracks open in the central joint plane (E) in a second direction R 2 , wherein, when the joint is in the aligned condition, the following condition is satisfied: 0.9< V 1<1.3 with V 1 =PCDS 3 /( DK 2 ×PCDB ) where PCDS is the pitch circle diameter of a shaft toothing in the inner joint part, DK is the ball diameter, and PCDB is the pitch circle diameter of the balls, wherein the joint is designed to have a maximum angle of articulation ranging between 30° and 40°.