The present invention relates to an electric machine (1) that includes a stator (10) and a rotor (20), with the said stator (10) being equipped with at least one annular exciter unit (11) that includes a coil (12) and at least two annular yokes (13a, 13b), with the said rotor being equipped with a structure (21) and at least one annular receiver unit (22). Each receiver unit (22) includes at least two rows (24) of magnets (23). Two sides (131, 132) of each yoke (13) include teeth (14) distributed angularly in a regular manner, and the said teeth (14) of the two adjacent yokes (13) fit onto a face (121) of the said exciter unit (11), alternately forming north poles and south poles. Each row (24) of the said magnets (23) is positioned opposite one face (121), forming an air gap (30) with the said exciter unit (11), with the electric machine (1) thus including at least two air gaps (30), with a 3D magnetic flux thus circulating inside the said electric machine (1), dividing and regrouping itself in the vicinity of the said magnets (23) and of the said yokes (13).