Patent ID: 7735210

Claim:
A process of machining an outer joint part or an inner joint part of a constant velocity universal ball joint, which outer joint part or inner joint part comprises a longitudinal axis (Aa, Ai) and a number of ball tracks, wherein the ball tracks are each arranged circumferentially in pairs whose central track lines are positioned in planes extending parallel relative to one another, comprising: machining the pairs of ball tracks by rotating disc tools whose axes of rotation (R) perpendicularly intersect the respective longitudinal axis (Aa, Ai) at a distance from one another and are held and guided coaxially relative to one another, during machining, guiding the outer joint part or inner joint part linearly in the direction of its respective longitudinal axis (Aa, Ai), and, during machining, guiding the disc tools synchronously in a linear or pivoting movement, about their axes of rotation (R), radially relative to the respective longitudinal axis (Aa, Ai).