Patent ID: 7325658

Claim:
An actuating unit for an electromechanically actuatable disk brake for motor vehicles mounted on a brake caliper, with two friction linings ( 4 , 5 ) being mounted in the caliper with freedom to move within a limited range, each of which works together with one of the lateral surfaces of a brake disk ( 6 ), where an actuating element ( 7 ) of the actuating unit brings one of the friction linings ( 4 ) into engagement with the brake disk ( 6 ) directly, whereas the other friction lining ( 5 ) is brought into engagement with the brake disk ( 6 ) indirectly through the action of the reaction force applied by the brake caliper, where the actuating unit consists of an electric motor ( 11 ); a first reducing gear ( 2 ), which acts between the electric motor ( 11 ) and the actuating element ( 7 ); and a second reducing gear ( 3 ), which acts between the electric motor ( 11 ) and a part of the first reducing gear ( 2 ) and is held in place by a housing, and where an electronic controller, which serves to drive the electric motor, is also assigned to the actuating unit, wherein at least part of the electronic controller ( 8 ) is mounted between the electric motor ( 11 ) and the housing ( 25 ) which holds the second reducing gear ( 3 ).