TRAINS that float on air may be the most famous objects borne by magnetic fields. But magnetic forces can also support other, less visible objects: the spinning shafts, for example, hidden at the ...
More-powerful controllers and better software lead to broader applications for magnetic bearings. Magnetic-bearings, which support shafts with magnetic levitation rather than mechanical contact, have ...
• Magnetic bearings support rotating shafts in five axes without solid or fluid lubricants. • Advances in electronics allow previously bulky controllers to mount on or near rotating machinery. • ...
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