failure cause：
About 40% of the failures of ball miniature bearings are caused by dust, dirt, debris pollution and corrosion. Pollution is usually caused by improper use and poor operating conditions. It also causes problems of torque and noise. The failure of miniature bearings caused by environment and pollution can be prevented, and the cause of such failure can be determined by simple visual observation. As long as the use and installation is reasonable, the erosion of miniature bearings is easy to avoid. Denudation is characterized by indentation on the raceway of miniature bearing rings caused by impact loads or incorrect installation. Denudation usually occurs when the load exceeds the yield limit of the material. If the installation is not correct so that a load across the miniature bearing ring can also produce erosion. Craters on miniature bearing rings also produce noise, vibration and additional torque
The solution：
Because the reasons for micro bearing heating are different, so the solution is also different, the following is the solution of micro bearing temperature overheating:
1. Grease filling method, the so-called grease filling method is to regularly fill the working surface of the bearing with an appropriate amount of grease, which is the most commonly used grease lubrication method.
2, the oil cup method, the oil cup method is set on the bearing seat of the cap type oil cup or pressure oil cup, regular rotation of the cap or oil gun into the fat. This is also a common grease lubrication method.
3. Pressure fat supply method. Pressure fat supply method relies on grease pump. At this time, grease with good fluidity should be selected.
4, centralized grease supply method, centralized grease supply method through grease pump, at the same time to each deep groove ball bearings and other parts of the grease supply. Similarly, at this time, grease should be selected with good flow, oxidation resistance and corrosion resistance, which is also a pressure grease supply method.
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