Patent ID: 7262531

Claim:
A magnetic suspension bearing, comprising: an inner magnetic ring secured to a shaft, the inner magnetic ring including at least one permanent magnet; an outer magnetic ring around the inner magnetic ring and radially spaced from the inner magnetic ring, the outer magnetic ring including at least one permanent matching magnet, wherein the magnetic polarity and magnitude of magnetic force of the matching magnet of said outer magnetic ring matches with the magnetic polarity and magnitude of magnetic force of said magnet of said inner magnetic ring to achieve the full suspension rotation of said shaft and radial alignment of said shaft with said outer magnetic ring; and left-side and right-side permanent magnets on left and right sides of the inner and outer magnetic rings, respectively, serving to maintain axial stability of the inner and outer magnetic rings relative to one another, the left-side and right-side permanent magnets having the same polarity as one of the inner magnetic ring or the outer magnetic ring, the one of the inner magnetic ring or the outer magnetic ring being repelled by the left-side and the right-side permanent magnets.