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Superconducting Magnetic Bearing Using MPMG YBaCuO

  • H. Fukuyama
  • K. Seki
  • T. Takizawa
  • S. Aihara
  • M. Murakami
  • H. Takaichi
  • S. Tanaka

Abstract

A large superconducting magnetic bearing with MPMG YBaCuO material was built in this study. The bearing was driven with a high frequency motor. A pair of the MPMG YBaCuO rings(ϕ4OXϕ65X t20) were fixed in the cooling spaces which were partitioned with thin seal plate. The spaces were cooled with liquid nitrogen.

The shaft was centerized with a specially designed centerizing device. Without the device the rotational shaft will be fixed at arbitrary position. The weight of a rotor of the bearing was 2.4kg and it could be rotated safely at 30000 rpm.

Keywords

Rotational Speed Critical Speed High Speed Rotation Levitation Force Magnetic Bearing 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Tokyo 1992

Authors and Affiliations

  • H. Fukuyama
    • 1
  • K. Seki
    • 1
  • T. Takizawa
    • 1
  • S. Aihara
    • 1
  • M. Murakami
    • 2
  • H. Takaichi
    • 2
  • S. Tanaka
    • 2
  1. 1.Tribology Research & Development, Research CenterNSK Ltd.Fujisawa, Kanagawa, 251Japan
  2. 2.Superconductivity Research LaboratoryISTECKoto-ku, Tokyo, 135Japan

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