Technology and key benefits
Active magnetic bearings operate with no surface contact eliminating bearing friction and wear. Electromagnets generate forces in radial and axial directions to levitate the shaft, allowing it to rotate contact-free. A control system actively monitors and continuously adjusts the current in the electromagnets to maintain shaft position. Their extreme precision and stability makes them suitable for a much wider operating range than conventional bearings.
higher reliability and energy efficiency
virtually maintenance-free, reduced cost of operation
oil-free and contamination-free
high damping properties, withstand high transient loads
allow active control of the shaft unbalance
instantaneous and unlimited start/stop
operate in vacuum and in process gas, enabling sealed machines design
built in monitoring system
Magnetic bearings – Principles of operation
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