How to judge whether Deep Groove Ball Bearing is faulty? Inspection during operation of deep groove ball. During the operation of the deep groove ball, it is necessary to carefully listen for any abnormal noise in the double row angular contact ball bearing. During the inspection, the head of a screwdriver can be pushed outside the bearing end cover and near the handle ear. If the sound of "grunt" or "grunt" is heard, it indicates that the Deep Groove Ball Bearing is faulty. If it is impossible to determine whether the Deep Groove Ball Bearing has failed, remove the load of the deep groove ball, turn on the power, hear the sound of the bearing, and then turn off the power. If the noise disappears, it is not a failure of the Deep Groove Ball Bearing.
If the noise still exists, it can be determined as a bearing fault. Inspection of bearing heating. There are many reasons for bearing heating, and deep groove ball heating can also be transmitted to the bearing area, and bearing heating can also be transmitted to the casing. Therefore, it cannot be simply determined whether the bearing is overheating. Check the condition of the raceway surface, rolling surface, and mating surface, the wear of the cage, the increase in clearance of the double row angular contact ball bearing, and any abnormal damage caused by an unrelated decrease in dimensional accuracy. For non separable small ball bearings, use one hand to support the inner ring horizontally and rotate the outer ring to confirm smoothness. Since large bearings cannot be rotated by hand, pay attention to the appearance of rolling elements, raceway surfaces, cages, retaining surfaces, etc. The more important the Deep Groove Ball Bearing are, the more careful they must be. In our use of bearings, it is important to regularly maintain and repair them, as this not only maintains the performance of the bearings but also extends their lifespan.