What is the maximum allowable temperature for rolling bearings?

[AlanFitz]

Rolling bearing temperature must not exceed 70 degrees. According to bearing operating temperature regulations, the allowable temperature for rolling bearing grease is ≤80 degrees, the allowable temperature for rolling bearings with mechanical oil lubrication is ≤80 degrees, and the allowable temperature for sliding bearings is ≤70 degrees. Rolling bearings are precision mechanical components that convert sliding friction between rotating shafts and bearing housings into rolling friction, thereby reducing friction losses. Rolling bearings generally consist of four parts: inner ring, outer ring, rolling elements, and cage. The inner ring functions to fit with the shaft and rotate together with it; the outer ring functions to fit with the bearing housing and provide support; the rolling elements are evenly distributed between the inner and outer rings with the help of the cage; the cage ensures uniform distribution of the rolling elements.