| 摘要 |
PURPOSE:To prevent the ring recessed part from deformation during assembling period and the like, and enable to control the accurate rotor positioning by a method wherein a non-magnetic material is embedded in a ring recessed part formed on the opposite surface against a stator of a rotor. CONSTITUTION:A recessed part 6 is formed on the opposite surface against a stator of a rotor 1, the recessed part causes to generate a crosswise attraction force on the rotor against the stator, also causes to generate a restoring force for returning of deviation of the rotor 1 toward previous position. The pole surface of the rotor 1 is made flat by embeding a non-magnetic material 16 such as a stainless material and the like in the recessed part 6, also prevented from the deformation due to contacting and the like during the assembling work. Therefore, a fine processing part for obtaining of stability in radial direction of the rotor 1 is prevented from large deformation, accordingly, the magnetic bearing having excellent performance can be obtained. |
