The early failure of the paired bearing of the machine tool may be that you have not added the correct preload; when installing the paired angular contact bearing, a certain amount of preload is usually applied, which can effectively resist the beating of the spindle, improve the rotation accuracy of the spindle, and reduce the bearing. Vibration and noise; However, the size of the preload is also very particular. If the preload is too small, it will lead to poor precision and large spindle runout, which will easily cause early failure. If the preload is too large, the bearing will be damaged. When running, the friction force is too large, it is easy to heat up, and it may be directly locked when it is serious; take the pairing as an example, the inner ring should be pressed tightly when paired back to back, and the outer ring should be pressed tightly when paired face to face. If the pressure is too tight, it will cause If the protrusion of the bearing is too large, if the pressure is not tight, the bearing will not be stressed, which will cause early failure of the bearing. 37 years of matching bearings for machine tools, our company is located in the Yangtze River Delta, has developed transportation and logistics, and has dedicated logistics lines for different customers. Only when the torque is accurate can the rotation be stable! (/jcpdzc1322.html)
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