The invention relates to a revolving joint (1) comprising at least one rolling contact bearing (2) and an electromotive drive unit (3), wherein the rolling contact bearing (2) is at least provided with one row of rolling bodies (4) arranged in a row around the rotational axis (2a) and the rolling bodies (4) is in contact with a running track (5) driven by the drive unit (3). A permanent magnet (12) of a rotating machine of the drive unit (3) and a driven running track (5) are rotatably fixedly connected to a rotor (13) of the rotating machine and the permanent magnet is opposite to a stator (15) of the rotating mechine at an air gap (14) position along a rotational axis (2a). At least the stator (15) and the permanent magnet (12) are separated through the air gap (14).