摘要： 磁轴承具有无摩擦磨损、转子位移精度高、可支承转速高、无需润滑油、寿命长等优点，在能源、交通、机械、生命科学等领域具有广阔的应用前景。首先介绍了磁轴承的基本工作原理和分类，以及在某些特定工作场合的优势和特点，然后综述了磁轴承从出现至今的中外发展现状，归纳了在磁轴承研究中的关键技术，最后提出了磁轴承今后的研究发展方向。

关键词：磁悬浮轴承；发展；关键技术；现状
Abstract: Magnetic bearings have the advantages of no-friction, no-abrasion, high precision of rotor position, support high speed rotor, no-lubricant, long service-life, and so on. The magnetic bearings have a wide application prospect in the fields of energy, transportation, machinery, life science, and so on. The principle and classification of the magnetic bearings were firstly described. Then the unique advantages and characteristics of the magnetic bearings in some special situations were introduced. After that the research status of the magnetic bearings in the world and the key technologies were summarized. Finally, the future development direction of the magnetic bearings was proposed.

Key words: magnetic bearing; development; key technology; status