Supplement:
Magnetic bearings suspend the rotor in the air by magnetic force, so there is no mechanical contact between the rotor and the stator. Its principle is that the magnetic induction line is perpendicular to the magnetic levitation line and the shaft core is parallel to the magnetic levitation line, so that the weight of the rotor is fixed on the running track and supported in the direction of the anti-magnetic levitation line by the almost empty shaft core, forming the whole rotor suspended on the fixed running track.
Magnetic bearing? Compared with traditional ball bearings, sliding bearings and oil film bearings, magnetic bearings have no mechanical contact, and the rotor can run at a very high speed, which has the advantages of low mechanical wear, low energy consumption, low noise, long service life, no lubrication and no oil pollution, and is especially suitable for special environments such as high speed, vacuum and ultra-clean. In fact, magnetic levitation is only an auxiliary function, not an independent bearing form. The specific application must cooperate with other bearing forms, such as magnetic suspension+ball bearing, magnetic suspension+oil bearing, magnetic suspension+vaporization bearing and so on.