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Understanding common failures and solutions of spherical roller bearing
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| Time：2017.12.15 News Sources：Shandong Xinkaite bearing Co.,Ltd. Views：
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1. bearing temperature is too high
When the mechanism is running, the location of the bearing is allowed to have a certain temperature. When touching the shell of the mechanism with hand, it should be normal if it doesnt feel hot. On the contrary, it indicates that the bearing temperature is too high.
The reason why the bearing temperature is too high is that the quality of the lubricating oil is not up to the requirement or deterioration, the viscosity of the lubricating oil is too high, the mechanism is too tight (lack of space), the bearing assembly is too tight, the bearing race is rotating on the shaft or the shell, the load is too large, the bearing cage or the rolling body is cracked.
2. bearing noise
Deep groove ball bearings in the work allow a slight operation sound, if the noise is too large or abnormal noise or impact sound, indicating that the bearing is malfunction.
The cause of the deep groove ball bearing noise is complicated, one is that the inner and outer ring of the bearing is worn with the surface. Because of this kind of wear, the relationship between the bearing and the shell and the bearing and the shaft is destroyed, which results in the axis deviating from the correct position, and the abnormal noise occurs when the shaft is moving at high speed. When the bearing is tired, the metal surface of the bearing is flake, and the radial clearance of the bearing will increase to produce the abnormal sound. In addition, the poor lubrication of the bearing, the formation of dry friction, and the breakage of the bearing will produce abnormal sound. After the bearing is worn loose and loose, the looseness and damage of the cage will also cause the damage of the abnormal sound bearing.
When the deep groove ball bearing is dismantled, the fault and the cause of the damage can be judged according to the damage of the bearing.
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