Universal joint, notably for automobile vehicle transmissions

摘要

The universal joint according to the invention comprises a drive element provided with at least two ball-races cooperating with rollers borne by a hub fast to a driven shaft, the outer surface of the drive element being substantially parallel with the inner surface of this element and including concave areas. It includes an insert having an inner surface which mates the outer surface of the drive element, while the outer surface of this insert has a convex contour to serve as a support for a sealing sheath, the insert ensuring filling of the concave areas. This insert is notably of plastics material over-molded on the drive element.