| 摘要 |
<p>A flanged bearing ring (10) is made up of two different materials joined together as a single piece, namely a radially inner annular insert (12) and a flanged, radially outer lightweight body (13) formed around the insert (12). The insert (12) forms one or more raceways (11) and is made of a hard material, such as bearing steel. The outer body (13) is made of a lightweight material, such as aluminium alloy, with a higher thermal expansion coefficient higher than that of the hard material which the inner insert (12) is made of. A relief (15) formed by the insert (12) extends into a groove (18) of the outer body (13). Another relief (19), formed by the outer body (13), extends into a further groove (16) of the insert (12). These reliefs and grooves interlock the insert (12) and the outer body (13) together against relative movement under all temperature conditions.</p> |
