Patent ID: 6315086
Filing Date: 2001-11-13
Classification: B60T,F16D,F16H,H02K

Abstract:
An electromechanically operable disc brake caliper system for automotive vehicles, comprising:a brake caliper,an actuating unit arranged on the brake caliper, the actuating unit including an electric motor arranged coaxially with an actuating element, the actuating element comprising a threaded roller pinion including a threaded nut, a threaded spindle driven by the electric motor and having an axial groove, a pair of cam plates rigidly coupled to the threaded spindle, and one or more threaded rollers interposed between the threaded nut and the threaded spindle, wherein rotational movement of the threaded spindle by the electric motor causes the one or more threaded rollers to rotate in a planetary fashion in the axial groove of the threaded spindle and axial movement of the threaded nut, thereby causing axial movement of the brake caliper.