The relative importance of the purity of the NSK bearings for fever

In simple cases, smooth NSK bearing grease filling amount, is always beyond the smooth directly involved in the theory of demand, satisfied with the rack and rolling mill bearing cover cavity, and an outline is made in the rolling around in vitro. In this process, due to the extra smooth and grease resistance, bearing temperature rise quickly. Smooth is big local excess fat at the beginning of the operation is being squeezed out, and squeezed in the raceway attachment smooth fat also could still be migration transformation between the rolling element into the race. These in the early stages of the rolling mill bearing operating large local smooth fat soon ( Less than a minute) Is being squeezed out of raceway, migration and accumulation in smooth fat in following bearing body cycle also, have a small amount of discharge. NSK bearing temperature still continue to rise, at this moment until smooth redundant fat are all out, may be called the smooth fat running-in stage, according to the structure of rolling mill bearing, smooth fat quality, filling quantity of elements in this period of time can last more than ten minutes, so that a few hours. A, NSK bearing life impact: the purity of the NSK bearing greater influence on bearing life, bearing company had stopped specially for this experiment, the result is the difference for several times or even dozens of times. The higher the purity of the bearing, the longer the life of the experiment indicate: the smooth oil of different cleanliness had a great influence on the ball bearing life. So, to improve the purity of the smooth oil can prolong the life of rolling mill bearing, in addition, if the smooth oil containing sewage control under 10 um, bearing life is growing into 7 times. B, the effects of vibration noise effect on the vibration: NSK bearings experimental results indicate: the cleanness of the serious influence degree of the vibration of rolling mill bearing, especially high frequency vibration. High cleanliness of low vibration velocity values, especially in high frequency band. C, the impact on the smooth performance: NSK bearing cleanliness, not only affect the smooth and the composition of the oil film, will also accelerate the transformation of smooth fat and its ageing, thus influence on the performance of the smooth fat smooth landing.