A system for mounting a wheel hub bearing unit to a motor vehicle suspension standard

摘要

There is disclosed a system for mounting a wheel hub bearing unit into a cylindrical seat (11) obtained in the suspension standard (12) of a vehicle. An axially outer circumferential groove (16) is obtained in the cylindrical seat (11). Proximate to the axially outer side (10a) of the outer race (10) of the bearing there is provided an elastic insert (15) of annular shape having a radial portion (15a) adjacent to said face (10a) and constituting an axial stopping means for the outer race of the bearing. Elastically flexible portions (15b) are radially protruding from the outer surface of the bearing and are adapted to elastically bend and snap fit into said groove (16) when the insert (15) is pushed axially into the cylindrical seat (11) of the suspension standard (12).