如果选择正确，而且没有错误使用，可使用很长一段时间；在正确选择、正确使用的情况下，损伤状态为剥离。 Ceramic bearings can be used for a long time if they are selected correctly and not used incorrectly. In the case of correct selection and correct use, the damage state is peeling. On the other hand, there are accidental early damage that cannot withstand early use. As the cause of this early damage, there are insufficient lubrication considerations, foreign matter intrusion, and errors in the installation of ceramic bearings and large shaft deflection. , The accuracy of the shaft and bearing box, insufficient material research, etc. Generally, these reasons overlap each other. Ceramic bearing failure generally manifests itself in two types: 1. Ceramic bearings have noise: Ceramic bearings are allowed to have a slight running noise during work. If the noise is too loud or there is abnormal noise or clatter, it indicates that the bearing is faulty. The causes of noise produced by ceramic bearings are: the matching surface of the bearing inner and outer rings is worn. And this kind of wear destroys the matching relationship between the bearing and the housing, the bearing and the shaft, causing the axis to deviate from the correct position, and the bearing produces abnormal noise when it is running. When the bearing is fatigued, the surface metal peels off, which will increase the radial clearance of the bearing and generate abnormal noise. In addition, insufficient lubrication of the bearing, the formation of dry friction, and broken bearings will produce abnormal sounds. After the ceramic bearing is worn and loose, the cage will be loose and damaged, which will also produce abnormal noise.
2. The temperature of the ceramic bearing is too high: When the host is running, a certain temperature is allowed at the part where the bearing is installed. When touching the shell of the host with your hand, it should be normal to not feel hot, otherwise the bearing temperature is too high.
The reasons for the high temperature of ceramic bearings are: the quality of the lubricant does not meet the requirements or deteriorates, and the viscosity of the lubricant is too high; the host assembly is too tight to make the gap insufficient: the bearing assembly is too tight; the bearing seat ring on the shaft or in the housing is overloaded with rotation; Ceramic bearing cages or rolling elements are broken. Method of troubleshooting 1. When replacing the bearing, the new bearing must be carefully inspected, and the shaft diameter, bearing seat hole and rotor must be carefully inspected; 2. When assembling and disassembling the bearings, strictly perform the maintenance process and operate carefully to avoid bearing damage caused by improper assembly and disassembly; 3. Refuel and change oil on time to ensure that the bearing working condition is always in good condition; 4. Carefully check during operation, find hidden troubles and eliminate them in time.