Abstract: An actuating arrangement (1) for a parking brake of a motor vehicle, having a first actuating unit (5), for manual actuation of the parking brake, and a shaft (2) for transmitting braking forces (F1, F2) to at least one wheel brake cylinder (4) of a service brake of the motor vehicle. The first actuating unit (5) is operatively connected to the shaft (2) so that, when the first actuating unit (5) is actuated, a first braking force (F1) is transmitted via the shaft (2) to the at least one wheel brake cylinder (4). The actuating arrangement (1) has a second actuating unit (7) for the controllable actuation of the parking brake. The second actuating unit (7) is operatively connected to the shaft (2) so that, when the second actuating unit (7) is actuated, a second braking force (F2) is transmitted via the shaft (2) to the wheel brake cylinder (5).

Abstract: An actuating arrangement (1) for a parking brake of a motor vehicle, having a first actuating unit (5), for manual actuation of the parking brake, and a shaft (2) for transmitting braking forces (F1, F2) to at least one wheel brake cylinder (4) of a service brake of the motor vehicle. The first actuating unit (5) is operatively connected to the shaft (2) so that, when the first actuating unit (5) is actuated, a first braking force (F1) is transmitted via the shaft (2) to the at least one wheel brake cylinder (4). The actuating arrangement (1) has a second actuating unit (7) for the controllable actuation of the parking brake. The second actuating unit (7) is operatively connected to the shaft (2) so that, when the second actuating unit (7) is actuated, a second braking force (F2) is transmitted via the shaft (2) to the wheel brake cylinder (5).

Abstract: The invention relates to an air guide through steering and rigid axles, particularly in planetary design, in rotary hubs for tire pressure regulation. A sealing ring (1) seals and air guide in the wheel head of a planetary steering axle with sealing lips against a U-shaped annular ring (2) comprising a metal wearing plate. The sealing lips of the sealing ring (1) acting in a radial direction. The sealing ring (1) is connected with a joint housing (4) and secured with pivots against distortion relative to said housing. The U-shaped ring (2) is firmly connected with the wheel hub (3) and is centered on the outer diameter by a close fit and secured against distortion relative to the wheel hub (3) and is sealed by means of O-rings (6). Between the annular, U-shaped ring (2) and the housing remains a narrow gap, the so-called labyrinth, which protects the seal against fouling.