Reasons for abnormal noise of crossed roller bearings

After a long period of use, crossed roller bearings will experience various conditions due to wear and tear, which will affect the use of the bearings. It is a common situation that the bearings have abnormal noises during use. There are many reasons for the abnormal noises of the bearings. There are different solutions to the cause of the formation of the cross roller bearing. The following Xiaohong will introduce the causes and solutions of the abnormal noise of the cross roller bearing.

When the inner and outer raceways of the bearing have bumps, dents or serious faults, it will cause abnormal noise in the cross roller bearing, and defects such as surface impact and scraping of the rolling elements will also cause smooth and crisp sound in the cross roller bearing. After a long period of use, the bearing is prone to wear and tear, resulting in damage to the meshing relationship between the bearing and the bearing and the shaft, causing the shaft to deviate and resulting in periodic vibration pulses.

The axial clearance of crossed roller bearings generally requires that the rotational clearance be as small as possible, but if the rollers in the raceway are squeezed too tightly, the axial clearance is too small, resulting in increased frictional resistance, and the rolling elements and cage pockets There is a violent collision between them, resulting in abnormal noise.

For example, some impurities, iron filings and other foreign matter enter the raceway running area of the bearing, which will cause severe friction with the rollers in the raceway. At this time, even a small amount of dust will cause the bearing to vibrate periodically or non-periodically Pulse, resulting in abnormal noise of the bearing during operation.

The performance of the lubricating oil used in the cross roller bearing is relatively poor or the quality of the lubricating oil is poor, which will cause abnormal noise during the use of the bearing. Improper bearing seals lead to oil or grease leakage, friction between the rolling elements and the grooves of the cage, and vibration pulses caused by the grinding lubricant of the rolling elements during operation, causing abnormal noise in the bearing.

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