Grease determines the ultimate service life of the bearing
author: Ann
2025-02-10
The bearing is prone to abnormal noise when it is lightly pressed, indicating that there are scars inside the bearing. So, how are the scars inside the bearing produced?
When the bearing is installed normally, if the inner ring is the mating surface, then the inner ring will be pressed, and the outer ring will not be stressed, so there will be no scars, as shown in the figure below.
But, what if it is not the case, but the inner and outer rings are relatively stressed? Then, as shown in the figure below, a Brinell indentation will be produced.
Yes, you are not mistaken, it is such a cruel reality. If the inner and outer rings of the bearing are relatively stressed, the bearing will easily produce damage indentations (professionally called Brinell indentations) on the surface of the steel ball and the raceway surface with just a slight pressure, and then produce abnormal noise. Therefore, any installation posture that may cause relative stress on the inner and outer rings of the bearing may cause damage inside the bearing.
Conclusion: At present, about 60% of the abnormal noise of the bearing is caused by bearing damage caused by improper installation. Therefore, instead of trying hard to find trouble with the bearing manufacturer, it is better to use the technical strength of the bearing manufacturer to check your own installation posture to see if there are risks and hidden dangers.
When the bearing is installed normally, if the inner ring is the mating surface, then the inner ring will be pressed, and the outer ring will not be stressed, so there will be no scars, as shown in the figure below.
But, what if it is not the case, but the inner and outer rings are relatively stressed? Then, as shown in the figure below, a Brinell indentation will be produced.
Yes, you are not mistaken, it is such a cruel reality. If the inner and outer rings of the bearing are relatively stressed, the bearing will easily produce damage indentations (professionally called Brinell indentations) on the surface of the steel ball and the raceway surface with just a slight pressure, and then produce abnormal noise. Therefore, any installation posture that may cause relative stress on the inner and outer rings of the bearing may cause damage inside the bearing.
Conclusion: At present, about 60% of the abnormal noise of the bearing is caused by bearing damage caused by improper installation. Therefore, instead of trying hard to find trouble with the bearing manufacturer, it is better to use the technical strength of the bearing manufacturer to check your own installation posture to see if there are risks and hidden dangers.
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