What are the three major standards that affect the quality of precision machine tool spindle bearings-

Everyone knows that the bearing precision and product quality of machine tool spindles are important factors that affect the performance of precision machine tool spindle bearings. For how to determine the accuracy level of a high-precision bearing, ISO/ABEC (ABEC is the Ring Bearing Engineering Project Federation of the Foreign Bearing Manufacturing Research Association) only defines the total width tolerance, concentricity, vertical angle, Smoothness, radial chatter and radial runout. In order to enable the machine tool spindle to achieve high precision, high-speed operation, high rigidity, low vibration, and low heat generation, it is necessary to control more main parameters of the bearing product value. There are many main parameters of the bearing, but the most important factors affecting the quality are still the following three aspects: The first factor, the cage, is very important for the spindle bearing of the CNC machine tool, and the performance of the cage will affect the bearing of the spindle of the machine tool. Precision and stability at high speeds. For the cage material used by the bearings on the machine tool spindle, Sanli has tight tolerances for internal structure design and pocket hole spacing and manipulates the correct guiding surface to ensure the best reliability of the cage under high-speed operation, lubrication and load. The second factor is cleanliness, which is especially important for bearings used in precision machine tools. The components of new bearing products are generally cleaned with multi-level organic solvents for 3 hours, so as to reduce impurities from penetrating into the bearings and avoid inherent pollutants. In addition, it is necessary to cut the non-working neutral surface of the bearing to ensure that the bearing is free of impurities before shipment. Therefore, the precision spindle bearings manufactured by Sanli specially according to the users who use the machine tools can increase the normal operation time of CNC machine tools. Precision angular contact ball bearings can be generally divided into two design methods: high-rigidity design and high-speed rotation design; according to different usage scenarios. Basically, the open bearing design allows the machine tool to have higher spindle bearing speed and more dynamic axial bending stiffness, so the spindle bearing can also drill more material in less time, while ensuring excellent Finished product tolerances. This improvement is due to the perfect integration of the unique steel ball body and the high-precision dovetail rail profile, and thus further improves the production and processing efficiency. Only when the torque is accurate can the rotation be stable. We have been specializing in the production of precision machine tool spindle bearings for 37 years!

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