Patent ID: 6889800
Filing Date: 2005-05-10
Classification: F16D,F16H

Abstract:
1. Actuating unit for an electromechanically actuated disc brake assembly for automotive vehicles, said assembly including a brake caliper in which two friction linings that cooperate with each one lateral surface of a brake disc are arranged so as to be displaceable within limits, wherein one of the friction linings is directly movable into engagement with the brake disc by the actuating unit and the other friction lining is movable into engagement with the brake disc by the effect of a reaction force produced by the brake caliper, said actuating unit comprising: at least one electric motor, a reducing gear coupled to the electric motor, wherein said reducing gear is disposed within a gearbox casing, an actuating element coupled to the reducing gear, means for providing anti-rotation of the actuating element, wherein the actuating element is arranged in the gearbox casing, wherein the anti-rotation means include cylindrical rolls and also include grooves formed in the gearbox casing or the actuating element respectively.