| 摘要 |
<p>Operating device (1), especially a hydraulic or pneumatic actuator, for gear boxes of vehicles, especially motor vehicles, comprises a housing containing two pistons (3, 4) displacing a clutch part (2) connected to a shifting device, preferably a shift fork, and consisting at least on its surface of a wear-resistant material, preferably steel. The two pistons sit loosely on the clutch part. Preferred Features: The two pistons are identical and sit with radial play on the clutch part. The clutch part is made in one piece from steel. The two pistons and the housing are made of light metal, preferably aluminum.</p> |
