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Analysis of the heat treatment scheme of precision spindle bearings! -
The normal temperature of precision spindle bearings changes with the heat generation, heat dissipation, speed ratio and load of the equipment. Under normal circumstances, the temperature of precision spindle bearings rises slowly with the operation of the bearings, and reaches a stable state after 1 to 2 hours. If the lubrication or assembly is unreasonable, the temperature of the bearing will rise sharply, and abnormal and continuous high temperature will be found. At this time, be sure to stop the operation and take the necessary precautions. The temperature sensor can be used to detect the working temperature of the angular contact ball bearing anytime and anywhere, and when the temperature exceeds the standard value, it will automatically alarm or shut down, so as to avoid the occurrence of safety accidents of burning the shaft. 1) If the fit and interference are large, the bearing should be heated in an air heat treatment furnace or an oil furnace with automatic temperature control, and the heating temperature should be strictly controlled below 100°C. 2) Bearings equipped with polyester ball bearings can work continuously and stably for a long time at -40°C to 120°C. 3) Continuous rotation at a temperature higher than 125°C for a long time will reduce the service life of the bearing. 4) Working at 150°C for no more than 4 hours, and the highest temperature can reach 180°C in a short period of time. Only when the torque is accurate can the rotation be stable! (/yqjmzz.html)
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