What factors affect the performance of outer ball cylindrical roller bearings

As a kind of bearing, the performance and service life of the outer ball cylindrical roller bearing are affected by many aspects, as follows: First, fine dust, there will inevitably be some fine dust in the air, that is, more or less, It doesn't matter much if there is less, but if the surrounding environment of the roller bearing operation is not good and there is a lot of dust, it will seriously affect its performance and reduce the service life of the bearing. Second, noise, friends who have studied physics know that there is such a thing as resonance. If there is a lot of noise around the roller bearing, there will be a certain vibration in the air, which will have a negative effect on the operation of the roller bearing, which will have a great impact on the bearing and will also damage the bearing. How to keep the outer ball cylindrical roller bearing clean: the bearing with high cleanliness has low vibration progress value, especially in the high frequency spectrum. Experiments have been carried out on the reaction of dust in the lubricating grease of needle roller bearings to noise, and it is confirmed that the more dust, the more noise. big. 3. The decrease in bearing cleanliness for the lubrication function does not only reflect the composition of the lubricating oil film, but also causes the deterioration of the grease and slows down its aging, thus reflecting the decrease in the lubrication performance of the grease. 2. Response to vibration and noise The cleanliness of the bearing has an equally large response to the life of the needle roller bearing. The bearing has stopped a special experiment for this, and the result is that the difference is several times or even dozens of times. The higher the cleanliness of the bearing, the longer the lifespan and others' experiments show that there is no lubricating oil with the same cleanliness that has a great effect on the lifespan of the ball bearing. When the amount of wear is large, the bearing, noise and vibration increase, which increases the running precision of the bearing, so it indirectly reflects the precision of some long machines. Therefore, for some bearings used in stationary machines, daily maintenance is mainly to prevent the intrusion of pollutants and dust. Because improving the cleanliness of the lubricating oil can extend the life of the bearing, so if the lubricating oil contains dirt particles less than 10um, the bearing life is doubled. The experimental results of the core of the bearing experiment show that the cleanliness greatly reflects the vibration degree of the bearing, especially the vibration of high frequency spectrum is more obvious. Response to bearing life: due to the absolute movement of the bone and raceway and the intrusion of dirt and dust, the surface of the bone and raceway is worn.

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