| 摘要 |
<p>A roller bearing cage having load capacity large enough to bear severe conditions imposed by high-speed engines, with even lighter in weight. In the roller bearing cage, the cage bars(4) are each made up of axially opposite thick ends(5) and a slim mid-area(6) lying midway thethick ends(5) to define a recess(19) between them. The cage bar(4) has radially outside projections(11) on an outside periphery thereof while radially inside projections(7) on an inside periphery thereof to keep the rollers(2) against escape out of the cage(1). The radially inside projections(7) extend circumferentially of the cage(1), especially, at just a circular edge(12) of the thick end(5), which lies nearby or neighboring or closer to the recess(19). The radially inside projections(7) are made by forcing material at the edge(12) to move circumferentially by plastic flow into the projections(7) that extend circumferentially towards pockets(8) on a radially inside circular surface(9) of the thick end(5). <IMAGE></p> |
