Rotating unit for an automobile seat and vehicle seat frame with a rotary unit and vehicle seat having a rotary unit

A rotating unit for a vehicle seat is proposed, consisting of a first flange element (3) lying in the installation position below and a second flange element rotatably arranged on the lower-lying flange element (3), wherein a first and second circular rolling element arrangement with rolling element raceways having different raceway diameters is provided between the first and the second flange element in order to rotatably support the flange elements (3) relative to one another. According to the invention, a first radially outer-lying rolling element raceway is defined in that one flange element encompasses and covers the other flange element around its outer edge, so that a rolling element raceway is created in an overlapping region b.