What is the effect of cleanliness on bearings?

Effect of cleanliness on bearing performance

1. Influence on bearing life

The cleanliness of bearings has a great influence on the service life of bearings. Special tests have been carried out on bearings, and the results show that the difference is several times or even tens of times. The higher the cleanliness of the bearing, the longer the life of the bearing. Therefore, improving the cleanliness of the lubricating oil can prolong the service life of the bearing. In addition, if the dirt particles in the lubricating oil are controlled below 10um, the service life of the bearing will increase several times.

2. Influence on vibration and noise

(1) The test results of the bearing test center show that the cleanliness seriously affects the vibration level of the bearing, especially the vibration in the high frequency band. The bearing with high cleanliness has low vibration velocity, especially in high frequency band.

(2) It is proved that the more dust there is, the greater the noise is.

3. The influence on lubrication performance

The decline of bearing cleanliness not only affects the formation of lubricating oil film, but also causes the deterioration and accelerated aging of grease, thus affecting the lubricating performance of grease.