Patent ID: 8894156

Claim:
A hub-bearing assembly for a motor vehicle wheel, the assembly comprising: a flanged ring defining a central axis of rotation, with a tubular core made of a first high toughness metallic material, and a flange extending in a radially outer direction, wherein the flange is made of a second material lighter than the first material, is integral with the core, and provides a plurality of axial through bores at angularly equally spaced positions around the axis; a corresponding plurality of pin connection elements, each pin connection element having: an axially extending cylindrical shank portion, which defines a respective longitudinal axis parallel to the rotation axis and is at least partially accommodated in one of the bores, a head portion, a cylindrical threaded surface for connecting the flanged ring to a wheel or a suspension standard of a motor vehicle, and an axial through bore, coaxially inside the respective shank portion, in which bore the respective cylindrical threaded surface is formed; the hub bearing assembly being characterized in that said head portions each have a shape different from that of a solid of revolution generated about the longitudinal axis of the relevant shank portion, and in that each head portion is accommodated in a correspondingly shaped respective recess formed in one of the two radial opposite faces of the flange, and wherein each recess embraces the area where a respective one of the through bores opens onto the radial face of the flange.