Disc brake with actuator for motor vehicles has brake housing with shaft sealed relative to surroundings by first sealing unit, and second unit between covering cap over shaft end and shaft/actuator lever

摘要

The device has an actuator shaft (11) with end (12) projecting from the brake housing (1) and actuator lever (15), and a first sealing unit between the components. A second sealing unit (29) is active between a covering cap (17) over the shaft end, and the lever or shaft. The cap is a hat-shaped nut screwed to the end of the shaft. There is sealing seat between nut and lever. The first sealing unit has a seal (19) fastened to the brake housing, with a sealing lip (21,23) acting with a sealing surface (22) on the lever. A chamber (24) between the sealing lips contains lubricant.