Constant velocity universal ball joint

A constant velocity universal ball joint comprising:

• a plunging joint having an outer joint part to be connected to a first drive part, and provided with an inner aperture in which there are formed outer ball tracks which extend at a first angle of intersection (+.gamma..sub.1) relative to a longitudinal axis (A.sub.a) of the outer joint part;
• an inner joint part to be connected to a second drive part, and which forms a hub member which is positioned in said inner aperture of said outer joint part and on which there are formed inner ball tracks which extend at a second angle of intersection (-.gamma..sub.t) relative to a longitudinal axis (A.sub.i) of said inner joint part;
• torque transmitting balls guided in said outer and inner ball tracks which are associated with one another in pairs, forming said angles of intersection (+.gamma..sub.t' -.gamma..sub.t'), said tracks associated with one another in pairs being identical in size and set in opposite senses relative to said longitudinal axes (A.sub.a' A.sub.i);
• a ball cage arranged between said outer joint part and said inner joint part and which comprises circumferentially distributed cage windows in which said balls are held in a common plane and in which, when the joint is articulated, said balls are guided onto an angle-bisecting plane between the longitudinal axes (A.sub.a' A.sub.i) intersecting each other;
• and
• each two circumferentially adjoining ball tracks in said outer joint part comprise center lines (B) which extend parallel relative to one another in one plane and which form outer pairs of tracks and that each two circumferentially adjacent ball tracks in the inner joint part comprise center lines (C) which extend parallel relative to one another in one plane and which form inner pairs of tracks, with said respective outer and inner pairs of tracks being associated with one another and jointly receiving a pair of said balls.