The invention relates to a rotatory bearing drive device comprising a stator (4) and a rotor (3) which is displaceably mounted in relation to the stator (4), at least one actuator (1) which is connected to the stator (4) and a control unit which is used to control the actuator (1). Said rotatory bearing drive also comprises a deflection unit (2) which is arranged between the actuator (1) and the rotor (3), which is frictionally connected to the friction surface of the rotor (3) and is rigidly coupled to the actuator (1) and is displaced in a rotational manner in order to deviate the direction of displacement of the at least one actuator (1). The rotor (3) tracks movements following low accelerations of the deflection unit which is based on friction. Movements based on high accelerations of the deflection do not unit track the rotor (3) by overcoming the friction.