The invention relates to an electromotive clutch disc for actuating a clutch between a driving motor and a gearbox of a motor vehicle. The inventive disc is provided with a clutch tappet for opening the clutch, an electromotor which actuates the clutch tappet (15) by means of a self-locking worm gear and a housing (10) that receives at least said worm gear (14). The aim of the invention is to increase the automatic lock of the worm gear (14). A friction device (21) producing a moment of friction is integrated in the worm gear. |