AbsiracCHybrid superconducting magnetic bearing(SMB), using YBCO high temperature superconductors(€ITS) coupled with permanent magnets, has been implemented into a flywheel energy storage(FES) system prototype. The hybrid S M B design uses permanent magnets to levitate the rotor weighing 19 kg and superconductors to stabilize the inherently unstable magnet-magnet interactions. The SMB bearings are brought into action under convenient field-cooled conditions. Spin-down performance of the constructed FES prototype was tested under a moderate vacuum.

Abstract--A telescope to be installed on the lunar surface in the near futere mast work in a cold and dusty vacuum environment fur long periods without on site human maintenance.. To track stars, the drive mechanism must be capable of exceedingly fine steps and repeatability.Further We report on the first prototype I-ITS bearing module built at the University of Houston in collaboration with Chert to be assembled as an azimuth mount for a levitated lunar telescope, see Fig. 1. II. LUNAR BEARING REQUIREMENTSTo track the position of a celestial object, the telescope must be able to change orientation as the moon rotates about Earth and its own axis. In general, the bearing module would have rotation capability in three directions.

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