Due to the relative motion and pollutant dust intrusion rolling elements and raceways, rolling elements and raceway surface wear. The amount of wear is larger bearings, noise, vibration increases, reducing the running accuracy of the bearing, and thus directly affect the accuracy of some host. Therefore some of the silent machinery bearings, routine maintenance to prevent the intrusion of contaminants dust.

1, the bearing life

The cleanliness of the bearing needle bearing life is quite large; the bearing has therefore conducted a special test, the result of the difference of even several times. The higher the cleanliness of the bearing, the longer the life of the test: the different lubricant cleanliness of great influence on the life of the ball bearings. Therefore, improve the cleanliness of the lubricating oil can extend the life of the bearings and, in addition, if the lubricating oil containing dirt particles controlled 10um or less, bearing life into multiples growth.

2, the impact of noise and vibration

Bearing test center test results show that: the cleanliness seriously affect the bearing vibration level, especially in the high frequency band vibration more significant. The value of the high cleanliness bearing vibration velocity is low, especially in the high frequency band, the dust in the needle bearing grease did test the impact of the noise, the proved more dust greater the noise.

3, the decline in the cleanliness of the lubricating properties affect the bearing, not only affect the formation of the lubricant film, also cause the deterioration of the grease and to accelerate the aging, which affects grease lubrication degradation.