Magnetic Bearing Made With Permanent Magnets

video we show a passive magnetic bearing made with permanent magnets. It is a very basic structure similar to the ones used in actual motors with magnetic bearings.
The permanent magnets distributed in a half circle shape provide a suspension force to the rotor. Even though those magnets make the rotor levitate in a centered position, they are not able to provide damping to radial oscillations and cause unstable forces in the axial direction.