The lubricating oil (or grease) used by rolling bearings has a certain working temperature. When the temperature is too high and the bearing seat is filled with water and ash, serious oxidation, emulsification and other deterioration will occur, thus losing the lubrication effect and causing the bearing to burn out due to high temperature. In addition, the poor quality of the lubricating oil (or grease) itself or the timely refueling (grease) in the operation is also a common phenomenon, such as the rain feed into the belt machine roller bearing, the rotary feeder bearing and the fuller pump bearing into coal powder or raw material powder, will cause the bearing temperature rise or abnormal sound.

2. The cooler of the lubrication pipeline is scaled and blocked, resulting in poor cooling effect

Especially in summer production, this problem is especially common, some manufacturers do not hesitate to increase or tandem cooler to strengthen the cooling effect. Because of the serious scaling of high temperature fan cooler, the frequent alarm of high bearing temperature has been encountered in all branches. A more effective treatment method is to pickling and descaling the cooler before summer every year.