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要求高转速的高性能小型马达轴承，因要求很高的回转精度故而宜用滚珠轴承和流体轴承。随着对轴承性能（摩擦系数和回转精度等）要求的日益提高，同时为了进一步扩大其应用范围，近来对于磁流体轴承的开发日益重视。通常烧结的含油轴承在轴承回转时其润滑面通过润滑油渗出而保?
High-performance small motor bearings requiring high speeds require ball bearings and fluid bearings due to the high slewing accuracy required. With the increasing demands for bearing performance (such as friction coefficient and slewing accuracy), and in order to further expand its application range, the development of magnetic fluid bearings has been increasingly emphasized recently. The usual sintered oil-bearing rotation of the bearing surface lubrication through the oil oozing and Paul?