Flanged bearing ring for a bearing unit of a motor vehicle wheel

A flanged bearing ring for a motor vehicle wheel, the flanged bearing ring including two different materials joined together as a single piece, the flanged bearing ring comprising:

• a radially inner tubular or annular core which forms at least one raceway around a central axis of rotation, the radially inner tubular or annular core providing a radially outer surface and being made of a first material having a high toughness;
• and
• a radially outer body which is formed around the radially outer surface of the radially inner tubular or annular core, the radially outer body forming a radially outwardly extending flange and is made of a second material being lighter than the first material,
• wherein at an axially outer end of the flanged bearing ring where the flange is provided, interface surfaces between the radially outer body and the radially inner tubular or annular core terminate in a groove which is formed partly in the radially outer body and partly in the radially inner tubular or annular core, and that accommodated in the groove is an annular sealing gasket of rubber-like or elastomeric material which is pressed against both the radially outer body and the radially inner tubular or annular core so as to seal continuously, along an entire circumference around the central axis of rotation, a separation line at the axially outer end of the interface surfaces between the radially inner tubular or annular core and the radially outer body.