After prolonged use, cross roller bearings may experience various wear and tear, which can affect their performance. Among them, abnormal noise during the use of bearings is a common situation, and there are many reasons for abnormal noise in bearings. Different causes have different solutions. Below, we will introduce the reasons and solutions for abnormal noise in cross roller bearings.
1. Reasons for abnormal noise of cross roller bearings
1.1 Bearing wear
When there are bumps, dents, or serious faults in the inner and outer raceways of the bearing, it can cause abnormal noise in the cross roller bearing. Defects such as surface impact and scratching of the rolling elements can also cause smooth and crisp noise in the cross roller bearing. After long-term use, bearings are prone to wear and tear, causing damage to the meshing relationship between bearings and shafts, resulting in shaft deviation and periodic vibration pulses.
1.2 Insufficient shaft clearance
The axial clearance of cross roller bearings generally requires a smaller rotational clearance, but if the rollers in the raceway are squeezed too tightly and the axial clearance is too small, it will increase the frictional resistance and cause severe collisions between the rolling elements and the cage pocket, resulting in abnormal noise.
1.3 Entering foreign objects and debris
Foreign objects such as impurities and iron filings entering the running area of the bearing raceway can cause severe friction with the rollers inside the raceway. Even small amounts of dust can cause periodic or non periodic vibration pulses in the bearing, resulting in abnormal noise during operation.
1.4 Insufficient lubricating oil performance
The poor performance or quality of lubricating oil used in cross roller bearings can lead to abnormal noise during use. Improper sealing of bearings can lead to oil or grease leakage, friction between the grooves of the rolling elements and the cage, and vibration pulses caused by grinding lubricants during the operation of the rolling elements, resulting in abnormal noise in the bearings.
2. Solution to the abnormal noise of cross roller bearings
2.1 Timely replacement after wear and tear
After the occurrence of abnormal noise in cross roller bearings, the surface of the bearing should be inspected to see if there is any collision or damage. If there is a problem with the bearing, it needs to be replaced in a timely manner because even small problems in the bearing can affect its operation.
2.2 Adjusting Gap
If the clearance of the cross roller bearing is too small, it will increase its additional torque. Therefore, when abnormal noise occurs, it is also possible to first check whether the clearance is too small and try adjusting it.
2.3 Replace lubricating oil
The selection of lubricating oil has a significant impact on the performance of bearings, so more attention should be paid to the selection of lubricating oil. Lubricating oil has a great influence on bearing speed, load noise, wear, corrosion, etc.
It is common for abnormal noise to occur during the operation and use of bearings. It is necessary to carefully analyze the causes of the abnormal noise and find corresponding methods to solve it.
2025 July 5th Week VAFEM Product Recommendation
VAFEM single bearings, manufactured to original equipment quality, are assembled in Langenbach, along with all the necessary components. There are four different models: grooved and angular roller bearings,tapered roller bearings,integrated wheel bearing units (hub units with built-in electronic sensors), and the bearings used for ABS, TCS, CPWM and navigation systems. In VAFEM catalogue you will also find images of each individual item. Our range of wheel hubs has also been considerably extended.
2025-07-31