Trifurcate constant velocity joint

This constant velocity joint (2) comprises a male element (4) having arms (8), a female element (16) having a central axis (X '-X') and defining a pair of symmetrical tracks (18, 20), and an outer roller (28) designed to roll on one or the other of the two tracks (18, 20) via a peripheral rolling surface (52). The female element (16) comprises at least one bearing surface (60, 62) limiting a rotation of the outer roller (28) about an axis perpendicular to the axis of the female element and the arm (8). For each arm (8), the cross-sectional profile of each track (18, 20) comprises two arcs having a radius center offset from each other, or a single arc extending through the parent element mid-plane (Q-Q), and the rolling surface (52) has a shape like a partial sphere or a partial toric surface. Each track (18, 20) and rolling surface (52) can contact each other at a first contact point (Z1) and a second contact point (Z2) radially spaced from each other. The inclination of the rollers is controlled by proximal