HUB BEARING/CONSTANT VELOCITY JOINT FOR VEHICLES WITH AN IMPROVED CLAMPING SYSTEM

Hub bearing/constant velocity joint (1) in which a radially outer, annular, element (5) of the joint is engaged with an annular hub (10) of a hub bearing unit with a flange at a first end thereof by means of a clamping system (7) including a screw element (20) assembled inside the annular joint element and able to be operated so as to screw it inside a second end (18) of the hub, while the transmission of torque is ensured by a splined coupling (19) between the joint element and the second end of the hub; the screw element is axially locked against an annular shoulder (24) formed on the inside of the joint element, on the opposite side to the annular hub, by means of an elastic ring (26) engaged with at least one annular seat (27) formed on the inside of the joint element.