1. concept: magnetic bearing uses magnetic force to suspend the rotor in the air, so that there is no mechanical contact between the rotor and the stator.
2. principle: the magnetic induction line is perpendicular to the maglev line, and the shaft core is parallel to the maglev line, so the weight of the rotor is fixed on the running track, and the almost unloaded shaft core is used to support the direction of the anti maglev line to form the whole rotor suspended on the fixed running track.
3. advantages: compared with the traditional ball bearing and oil bearing, the magnetic bearing has no mechanical contact, and the rotor can run to a very high speed. it has the advantages of low mechanical wear, low energy consumption, low noise, long service life, no lubrication and no oil pollution. it is especially suitable for special environments such as high speed, true air and ultra clean.
4. 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 levitation + ball bearing, magnetic levitation + oil bearing, magnetic levitation + vaporization bearing, etc.