No.12, Haotian Street, Liangxiang, Fangshan District, Beijing-102401, China
The wear of rolling mill bearing is often not a single factor, which may be affected by many factors at the same time, which causes more serious wear problems. Therefore, in the analysis of this problem, there may be a greater degree of difficulty.
For example, the wear of angular contact bearings in a typical aluminum foil mill is a big headache. And if we want to reduce the degree of wear and tear, then we think that we can use lubrication to achieve this goal. In fact, lubrication is very important for the performance of rolling mill bearings. In comparison, the use of oil mist lubrication may achieve better results.
In addition, we also need to take into account the bearing installation clearance problem, as well as the shaft end baffle will be the gap between the housing problem. In addition to these main factors, there is also a question worth thinking about. That is the problem of the bearing outer ring load change caused by the bending roller cylinder.
In order to solve this problem, some manufacturers have introduced the bearing cone and the thrust combined bearing, some have adopted the method of setting the spring cushion on the outer ring of the bearing. Under normal circumstances, in order to ensure the use of rolling mill bearings, in the selection of support rollers, usually choose to use four-row cylindrical small roller bearings. Because the inner ring of this type of bearing is the same as that of the roller, it is usually placed in the inner ring after installing the cone sleeve, which prevents it from being subjected to axial force.
In other words, in the rolling process, usually by bearing to withstand axial force. In general, in practical applications, some small mill's axial force is its own bearing, while some large or high precision mills, generally using axial bearing.