ELECTROMECHANICAL BRAKE ACTUATOR AND CAM DISC

An electromechanical brake actuator () for a brake has a cam disc () and a brake plunger () for actuating a brake lever (). The cam disc () and the brake plunger () have contact surfaces in contact with one another for directly transmitting a drive torque. The contact surface of the cam disc () extends at a distance r about the pivot point D, which is defined as a function r(φ) with a change rate r′(φ) and depends on the angular position φ of the cam disc (). The contact surface is configured to effect non-linear transmission between the drive torque of the cam disc () and the force transmitted to the brake plunger ().