a sleeve like intermediate body 15 with a radial extent a and composed of nonmagnetic material in this case as well the magnitude of a is chosen as in the embodiment shown in fig2 in the embodiment of the magnetic bearing apparatus 12 shown in fig3 the magnetic control flux mf 2 is likewise produced by a fixed position winding 17 on an electromagnet this control magnet winding 17 is in this case however located in an area of the center plane me close to the rotor shaft in order not to impede the profile of the lines of force of the holding flux mf 1 there is therefore no central rotor disk element in this area either the circuit for the control flux mf 2 is in this case closed close to the axis via the rotor shaft 3 and remotely from the axis via stator disk elements 7 e which rest on one another in the area of the center plane me there and the outer yoke body 14 the above embodiments of magnetic bearing apparatuses 2 and 12 have been based on the assumption that the magnetic field generating means for generating the magnetic holding flux mf 1 are either permanent magnet elements 7 m or windings 131 on at least one field magnet a combination of permanent magnet elements and windings on electromagnets is of course also possible in order to generate the desired axial holding flux mf 1 via the.