| 摘要 |
<p>The belt pulley (7) is particularly intended for driving vehicle components such as a cam shaft, fan, alternator. It comprises a disc (8) with outer rim (11) for the belt and cylindrical hub (9) formed from sheet metal with an axial groove (10) formed in the hub. The disc, hub and groove are in one piece. The outer rim (11) may also be in one piece with disc and hub.</p> |
