The invention relates to an electric machine extending along an axis Z, and comprising (i) a rotor portion configured for rotating around the Z axis at a defined position along the Z axis, and comprising a field source having p pole pairs; (ii) a stator portion comprising at least one pair of windings comprising each an upper (30) and a lower (40) winding, comprising each a plurality of p pole pairs, the upper (30) and lower (40) winding being arranged so as to form a passive axial electrodynamic bearing. According to the invention, the connections (31-42, 32-41 or 31-41,32-42) between the upper (30) and lower (40) windings comprise terminals of the electric machine connectable to an electric power supply or to an electric load.
Dehez, B., Dumont de Chassart, C., Van Verdeghem, J., & Kluyskens, V. (2018). Electric machine having an axial electrodynamic bearing (Patent No. 2018063174). https://hdl.handle.net/2078.5/117989