As the basic supporting equipment of CNC lathes, the characteristics of CNC lathe spindle bearings can directly affect the speed ratio, rotation accuracy, rigidity, anti-vibration processability, noise, temperature rise and thermal deformation of the equipment, thus endangering the production and processing parts. accuracy, surface quality, etc. Therefore, high-performance CNC lathes must use high-performance bearings. The accuracy of the spindle bearing system of the CNC lathe is mainly affected by the following factors: 1) The axial vibration of the section of the bearing throw ring will correspondingly cause the axial vibration of the spindle centerline of the spindle system, and then a part of such deviation will be reflected in the production process. externally. 2) Inconsistent diameters and morphological deviations of the bearing reversing body may cause periodic deviations in the main shaft. 3) The side swing of the cross section to the inner hole will cause the radial shaking of the main shaft, and the radial shaking of the main shaft is particularly harmful to the precision grinder, especially the bearing CNC grinder. The pass rate is greatly improved, and the noise is also greatly improved. 4) The deviation of the specification and position tolerance of the CNC lathe spindle bearing installation table will cause corresponding deformation of the bearing raceway, skew the inner and outer rings of the bearing, and cause the bearing to have inconsistent bending stiffness in each direction, which will reduce the rotation accuracy of the spindle system. . The inner hole of the nut, spacer, and seal ring for adjusting the spacing must be finely ground and processed, and the flatness of the shaft rotation centerline should correspond to the accuracy of the installed bearing, otherwise the accuracy of the bearing in operation will be reduced. 37 years of industry experience, a listed company in the industry, mainly engaged in CNC lathe spindle bearings, various angular contact ball bearings, various application scenarios, welcome to inquire!