Patent ID: 8511439

Claim:
A self-energizing disk brake comprising: a brake application unit for applying the brake lining to one side of a brake disk with an application movement of the brake lining relative to the brake disk, the application movement having a component extending parallel to a rotational axis of the brake disk and another component extending parallel to a friction surface of the brake disk in a circumferential direction relative to the rotational axis of the disk brake, the brake application unit including a self-energizing device; an electric actuator in which an activation force applied thereto is amplified using the self-energizing device, the self-energizing device being arranged between the electric actuator and a brake lining; at least one electromotive drive driven by the electric actuator for activating the brake application unit; and at least two brake plungers of the brake application unit; wherein the self-energizing device includes pressure surfaces of the at least two brake plungers provided, on sides facing the brake lining, with a recess having a ramp shaped contour for engagingly receiving a rolling element, the rolling element being supported at one end by the ramp shaped contour and at another end by the brake lining, and the electric actuator rotates a crank one of directly and through at least one gear mechanism, the crank being arranged to rotate about an axis parallel to the rotational axis of the brake disk to move the brake lining parallel to the friction surface of the brake disk in the circumferential direction relative to the rotational axis of the brake disk, wherein the crank engages a correspondingly aligned opening in the pressure plate.