| 摘要 |
<p>A flanged bearing ring (10) for a motor vehicle wheel includes two different materials joined as a single piece: a tubular core (15) and an outer body (16) around the core. The outer body forms a radial flange (17) and is made of a lighter material than that of the core. The ring (10) further includes an element of generally tubular shape (30), which contacts both the outer body (16) and the inner core (15) so as to cover and seal with continuity a circular line of separation (23) at the end of the interface surface between the core and the outer body at the axially outer side of the ring. The tubular element further forms a cylindrical axial edge (31) which extends in an axially inner direction and is fixed in the axially outer end of the core cavity (13), and a cylindrical tubular portion (32), projecting in an axially outer direction beyond the flange (17), for centering the vehicle wheel.</p> |
