Active magnetic bearings give systems a lift.

From: Mechanical Engineering-CIME | Date: July 1, 1992| Author: O'Connor, Leo | Copyright information

Magnetic bearings minimize friction and wear by suspending a rotating shaft in mid air. Active magnetic bearings are now in the market for select industrial applications, while passive superconducting magnetic bearings are mostly in the laboratory stage. Current niches for active magnetic bearings include centrifugal pumps for natural gas pipelines, cryogenic pumps and advanced gas turbines. Load-bearing capacities and accompanying size and cost factors need to be improved for mainstream appl...

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