The Intorduction Of Magnetic Bearings

What are magnetic bearings
Magnetic bearing is a kind of non-contact high performance bearing which makes use of the principle that the same poles of magnets repel each other.Compared with traditional ball bearings, sliding bearings and oil film bearings, magnetic bearings do not have mechanical contact, the rotor can reach a very high speed, with small mechanical wear, low energy consumption, low noise, long life, no lubrication, no oil pollution and other advantages, especially suitable for high speed, vacuum, ultra-clean and other special environments.
Working principle of magnetic bearings
A sliding bearing that uses electric and magnetic field forces to make the shaft suspended.Electrostatic bearings are suspended by electric field force, magnetic bearings are suspended by magnetic field force, and combined bearings are suspended by electric field force and magnetic field force.The latter bearing has both electrodes and magnetic poles, tuning the capacitance and inductance to each other in the circuit connection, and has much higher stiffness than the former two, while the maximum force corresponds to very little displacement.Electromagnetic bearing because the shaft and bearing have no direct contact, do not need lubrication, can work in vacuum and a wide temperature range, small friction resistance, is not limited by speed, long service life, structure can be diversified.

The same poles of magnets repel each other, because there is no mechanical contact, magnetic bearing has no friction, no wear, no lubrication characteristics, the rotor can rotate at high speed, the speed is only limited by the strength of the rotor material, power consumption and noise is very low, can be suitable for a variety of complex application environment.Another outstanding advantage of the magnetic bearing is that the rotor running state can be detected in real time by the control system, the magnitude of unbalance can be evaluated online and the unbalance can be actively controlled, so that the control of the rotor system can achieve a high precision.These characteristics of magnetic bearings make them have obvious advantages compared with traditional rolling bearings, oil film bearings and gas bearings in many application fields.
Application of magnetic bearings
Magnetic bearing is a new type of non-contact high performance bearing which uses the principle of magnets with the same poles repulsive each other.Compared with traditional ball bearings, sliding bearings and oil film bearings, magnetic bearings do not have mechanical contact, the rotor can reach a very high speed, with small mechanical wear, low energy consumption, low noise, long life, no lubrication, no oil pollution and other advantages, especially suitable for high speed, vacuum, ultra-clean and other special environments.It can be widely used in machining, turbine machinery, aerospace, vacuum technology, rotor dynamic characteristics identification and testing and other fields, and is recognized as a promising new type of bearing.
Supplier: BMB bearings
BMB Bearings is the complete one-stop supplier of OEMs and wholesalers purchasing high-precision, miniature ball bearings, industrial ball bearing related products, as well as related professional services, including world-class engineering and design.The bearing of BMB bears is of absolute quality assurance. If you have more questions about magnetic bearings, please contact us.