Flanged bearing ring for the hub of a motor vehicle wheel
AssigneeAktiebolaget Skf
InventorsAndreas Knopf, Paolo Re
Life of this patent
Estimating the term…
Abstract
A flanged bearing ring (10) for the wheel of a motor vehicle includes a tubular core (15) and an outer body (16) around the core. The core (15) and the outer body are made of two different materials and joined as a single piece. The outer body forms a radial flange (17) and is made of a lighter material than that of the core. At both axial ends of the ring, the radially outer surface of the core provides a succession of depressions (27) and ridges (28) which extend in a circumferential direction, and cause the formation of complementary recesses and reliefs in the outer body (16). This results in a long meander-like path that opposes or at least delays the entrance of contaminant or corrosive agents between the outer body (16) and the core (15).
Claims6
A flanged bearing ring for a motor vehicle wheel, the ring (10) including two different materials joined together as a single piece, the ring comprising:
- a radially inner tubular or annular core (15) which forms at least one raceway (11) around a central axis of rotation (x), the core (15) providing a radially outer surface, and being made of a first, hardened material;
- a radially outer body (16) which is formed around said outer surface of the core (15), forms a radially outwardly extending flange (17) around the core, and is made of a second material being softer than the first material;
- wherein the core (15) extends axially across the entire width of the outer body, and the radially outer surface of the core (15) provides a series of reliefs and recesses extending in a circumferential direction, and determining the formation of complementary recesses and reliefs in the outer body (16);
- and wherein
- the complementary recesses and reliefs include, at both axial ends of the ring (10), a respective succession of depressions (27) and ridges (28) which are consecutive in the axial direction, thereby determining an elongate meander-like path that opposes or at least delays the entry of contaminants or corrosive agents between the outer body (16) and the core (15).
Dependencies are inferred from the claim text.