During the operation of the machine tool, rolling bearings are generally used in the following three parts: the machine tool spindle, the ball screw and the drive shaft. In terms of bearing accuracy, the bearings we should use on relatively precise machine tools should be precision machine tool spindle bearings. In the operation of the machine tool, the bearing, as an important part of the machine tool, has a very important influence on the precision, rigidity, shock resistance, noise level, temperature rise, speed, etc. of the machine tool, so it is also an important factor for the quality of the processed products. . Therefore, the processed products and machine tools with relatively high quality requirements should be equipped with high-precision machine tool spindle bearings. According to the accuracy of machine tool bearings, we generally distinguish them as P0-P6, of which P5 and P6 are used in machine tools with rotational accuracy of 5-10 microns or equipment with high rotational speed requirements; P4 and P2 bearings are generally used in some milling machines, In the transmission gear system of the grinding machine, the rotation accuracy does not exceed 5 microns; P0 bearings are generally used in the speed control parts of ordinary machine tools. It has been standing in the production field of precision machine tool spindle bearings for 37 years. The raw materials of the bearings are purchased by our company, and the steel is preferably Xingcheng Special Steel and Daye Special Steel. The steel balls are made by the two best steel ball manufacturers in China at present, Universal and Dong’e, and the cages are made of tin balls that are second to none in China. your cost.