Does the GTX use mechanical bearings?
No, that’s one of the major advantages of the GTX over other flywheel power systems. The GTX uses a patented five-axis magnetic levitation system. It consists of electromagnets (2 radial “X”, 2 radial “Y”, 1 axial “Z”) that levitate the rotating group so there is no mechanical contact during operation. This eliminates the wear and energy inefficiency common to all mechanical bearing flywheel systems. The patented magnetic levitation system is completely maintenance-free for the life of the GTX (>20 years).