MOTOR-REDUCER WITH PLANETARY GEARSET, DRUM AND DISC BRAKE AND BRAKING DEVICE PROVIDED WITH SAME

摘要

The invention relates to a motor-reducer, in particular for powering an actuator of a disc or drum brake of a motor vehicle, for example in the context of a "dual-mode" drum brake. The invention also relates to a drum brake and to a braking device provided with same. The motor-reducer includes an electric motor, a reduction gear and a rotary output coupled with the electric motor via the reduction gear. Typically, the motor-reducer also includes a housing which contains the motor. The reduction gear has a planetary gearset and includes at least one internal gear ring which is secured to the housing and integrally formed with the housing.