Rotary homokinetic joint

The invention relates to a rotary homokinetic joint (1) which comprises an outer joint part (2) having an outer surface (3) and an inner surface (4), said outer joint part (2) comprising at least three guide tracks (6), evenly distributed across the periphery of the inner surface (4) and extending in the axial direction, an inner joint part (8) comprising at least three pivots (10), evenly distributed across the periphery and extending in the radial direction, and antifriction bearings (12), arranged between the outer joint part (2) and the inner joint part (8) and borne on the pivots (10). Every antifriction bearing (12) comprises antifriction bearing outer surfaces (14) which are adapted to the guide tracks (6) of the outer joint part (2) for the purpose of linear displacement of the inner joint part (14) in the axial direction. Said guide tracks (6) comprise two opposite lateral guide surfaces (16) each for guiding the antifriction bearing (12) in the axial direction. The rotary homokinetic joint is characterized in that every lateral guide surface (16) is made up of at least two linear surfaces (18a, 18b) running at a defined angle (alpha) in relation to each other in such a manner that an antifriction bearing (12) inserted into a guide track (6) is supported in at least two contact areas (20) on a lateral guide surface (16) of the guide track (6) corresponding to the direction of loading.