CNC lathe spindle bearings are the basic supporting facilities of CNC lathes, and their characteristics can directly affect the speed ratio, rotation accuracy, stiffness, anti-vibration and vibration processability, noise, temperature rise and thermal deformation of the equipment, thus affecting the production and processing of parts. Accuracy, surface quality, etc. Therefore, high-performance CNC lathes must use high-performance bearings. The accuracy of the spindle bearing system of CNC lathe is mainly affected by the following factors: 1) The axial vibration of the section of the bearing throwing ring will cause the axial vibration of the spindle center line of the spindle system accordingly, and then reflect part of this deviation in the processed outwardly. 2) The inconsistency of the diameter and shape deviation of the bearing turning body may cause the main shaft to cause periodic deviation. 3) The side swing of the inner hole of the section will cause the radial shaking of the main shaft. The radial shaking of the main shaft is particularly harmful to precision grinding machines, especially bearing CNC grinding machines. The pass rate is greatly improved, and the noise will be greatly improved. 4) The specification and position tolerance deviation of the CNC lathe spindle bearing installation table surface will cause the corresponding deformation of the bearing raceway, skew the inner and outer rings of the bearing, and cause the bending stiffness of the bearing to be inconsistent in each direction, which will reduce the rotation accuracy of the spindle system . The inner holes of the nuts, spacers, and sealing rings for adjusting the distance need to be ground and processed, and the flatness with the axis of rotation of the shaft should correspond to the accuracy of the installed bearings, otherwise the working accuracy of the bearings 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! (/slzcwn1344.html)
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