Cleanliness of bearings

The cleanliness of the bearing has a considerable impact on the bearing life, the higher the cleanliness of the bearing, the longer the life, and the lubricating oil with different cleanliness has a great impact on the life of the ball bearing. Therefore, improving the cleanliness of lubricating oil can extend the life of the bearing, in addition, if the lubricating oil containing dirt particles below 10 um, bearing life is also several times longer.

(1) Influence on vibration: The cleanliness seriously affects the vibration level of the bearing, especially the vibration in high frequency band. Bearings with a high degree of cleanliness have low values of vibration speed, especially in the high frequency band. 

(2) Impact on noise: The impact of dust in bearing grease on noise has been tested, and it has been proved that the more dust, the greater the noise.

(3) Influence on lubricating performance: The decline of bearing cleanliness not only affects the formation of lubricating oil film, but also causes the deterioration of grease and accelerates its aging, thus affecting the decline of lubricating performance of grease.