Abstract: A homokinetic joint of the type wherein torque is transmitted between two heads by means of balls engaged in tracks formed in said heads, said tracks being in the form of grooves. The axes of both grooves in each of the ball rolling tracks are disposed so as to make an angle with one another both in the radial plane containing the center of the respective ball and the plane perpendicular thereto, containing said center. The angle of the grooves is higher in the radial direction than in the direction perpendicular thereto. The invention is applied to homokinetic joints, whether sliding or not, particularly adapted to automobile vehicles.

Abstract: Homokinetic joint of the type in which the torque is transmitted between two ends by balls engaged in races or tracks made in said ends.Each track is constituted by two semi-cylindrical grooves, the sectional diameter of which being oriented relative to a radial axis passing through the geometrical center of the joint and perpendicular to the longitudinal axis of said two ends. The balls are thus made to roll and to be guided between two poles located on the radial axis and two other poles located on an axis perpendicular to said radial axis. Said arrangement excludes the use of any intermediate means for maintaining the balls on the bisecting plane of the joint.The invention is particularly adapted to realize the two-joints transmission assembly for a vehicle.