Joint With Increased Splay Angle

A constant velocity universal joint assembly comprising:

• an outer joint part with outer ball tracks;
• an inner joint part with inner ball tracks;
• torque transmitting balls which are held in pairs of outer and inner ball tracks associated with one another;
• a ball cage which receives said balls in cage windows and holds same in a common central plane K;
• wherein the course of said outer ball tracks and the course of said inner ball tracks associated with one another extend mirror-symmetrically relative to said central plane K;
• wherein at least one axial end portion of said inner and outer ball tracks has a shape such that a ball entering said axial end portion when the joint is articulated is freed from the transmission of torque between the associated outer and inner ball tracks;
• wherein in at least one group of said outer and inner ball tracks, the course of the tracks of said axial end portions is deepened relative to a theoretical track course which is mirror-symmetrical with respect to the tracks of said associated inner or outer ball tracks.

A constant velocity universal joint assembly comprising:

• an outer joint part with outer ball tracks;
• an inner joint part with inner ball tracks;
• torque transmitting balls which are held in pairs of outer and inner ball tracks associated with one another;
• a ball cage which receives said balls in cage windows and holds same in a common central plane K;
• wherein the course of said outer ball tracks and the course of said inner ball tracks associated with one another extend mirror-symmetrically relative to said central plane K;
• wherein in at least one axial end portion of said inner and outer ball tracks has a shape such that a ball entering said axial end portion when the joint is articulated is freed from the transmission of torque between the associated outer and inner ball tracks;
• wherein in at least one group of said outer and inner ball tracks, the track cross-section of said axial end portions is widened relative to a theoretical cross-section which would receive said balls with said track cross-section of the associated inner or outer ball tracks in a play-free way.