| 摘要 |
<p>A clutch disc comprises a wheel hub arranged at a central point, a vibration damper connected to the wheel hub and a plurality of friction discs mounted on one edge of the vibration damper. The wheel hub comprises a main body and an extension part which is arranged at one end of the main body. A plurality of inner annular gear sections are arranged in the main body, which sections extend in the axial direction. The inner annular gear sections are capable of establishing a rotationally fixed connection with a drive shaft of a transmission. The extension part extends in the axial direction and internally forms a cavity, a dust-tight element is attached on an opening on one side of the cavity at a distance from the inner annular gear sections, and the dust-tight element can then effectively prevent dust penetrating the wheel hub.</p> |
