There are two brake friction surfaces. The braking torque,when voltage is not applied, by the force of the Springs is created. The electromagnetic brake is released to field.Basic principles of feeding the coil with clutch pressure plate (No: 7) to the electromagnets (No: 9) is drawn toward. This movement the springs (No: 8) that are mounted on the rotor shaft is under pressure and on multiple balata wedge which can move in the axial direction (No: 6) is released. The current is interrupted when the pressure of the springs, the clutch pressure plate the brake pad is pushed into the rotor and this movement brakes.