Prototype of a Disc-Type HTS Bearing

AbstractA prototype of a rotational machine with two HTS bearings supporting a rotor without a mechanical contact has been designed, manufactured and tested. An arrangement of HTS elements with 180-g total mass provide stable suspension of a 3.6-kg rotor with 1.0-mm operating gap. The maximal load capability of the bearing was measured to be 220N in the radial direction and 150N in the axial. The ratio of the radial load capability to the mass of superconductors exceeded 120. The maximum rotation frequency was 14500rpm