Patent ID: 8568037

Claim:
A flanged bearing ring for a motor vehicle wheel, the ring being made up of two different materials joined together as a single piece, the ring comprising: a radially inner tubular core which forms an axially inner raceway and an axially outer raceway having a pitch diameter smaller than the axially inner raceway around a central axis of rotation, the core providing a radially outer surface and being made of a first high toughness material; a radially outer body forming a radially outwardly extending flange around the core and made of a second material being lighter than the first material; and wherein the radially outer surface of the core includes a conical, axially inwardly tapered surface having a straight outline, when viewed in axial cross section, oriented essentially perpendicular to a mid-line bisecting the axially inner raceway and corresponding to the line of action of the resultant of the contact pressures exerted by an inboard row of bearing balls against the axially inner raceway.