Ball screw pair is a precise, efficient and sensitive transmission element. In view of the difficulty of processing ceramic materials, precision ceramic bearings are mostly hybrid ceramic ball bearings with ceramic rolling elements and inner and outer rings made of chrome steel.
The requirements and selection are the same as ordinary mechanical transmission bearings. With the rapid development of numerical control technology, 'composite, high speed, intelligence, precision, and environmental protection' has become the main trend in the development of today's machine tool industry technology. Ceramic bearings are more and more widely used. For high-speed and high-precision machine tools such as CNC machine tools and machining centers, For spindle support, ultra-precision bearings of P4 and above are required.