The traditional ball bearing, oil bearing compared to the absence of mechanical contact magnetic bearings, the rotor can run into very high speed, mechanical wear, low energy consumption, low noise, long life, no lubrication, no oil pollution, etc, especially suitable for high-speed, vacuum, and other special clean environment. Maglev in fact only an auxiliary function, not form independent bearing, have specific applications in combination with other forms of bearings, such as ball bearings maglev, maglev oil bearing, magnetic bearings + vaporization. "220V Cooling Fan" The principle is that the magnetic flux lines and maglev line perpendicular to, the axis and the maglev line are parallel, so weight of the rotor is fixed on the running track, the use of almost no load spool core to the opposite maglev line direction top support, so as to float the entire rotor.