5 reasons for the high temperature of the fire pump bearings

Reason 1: Because the axial thrust suddenly increases during the operation of the fire pump, for example, when the balance plate and the balance ring of the fire pump are seriously damaged, the thrust will not be increased, and the axial load of the bearing will be increased, thereby causing the fire pump. The bearing temperature is too high.

Reason 2: The fire pump shaft is bent or distracted, which will cause the fire pump to vibrate, causing the bearing to heat or wear.

Reason 3: The bearing clearance of the fire pump does not meet the requirements. For example, if the bearing inner ring and the fire pump shaft, the bearing outer ring and the bearing body are too loose or too tight, the bearing can be heated.

Reason 4: The lubricating oil in the bearing of the fire pump is not enough, or the quality is too bad, and there is debris inside;

Reason 5: The fire pump bearing has been damaged due to long-term use. For example, the fire pump is damaged due to the rolling bearing cage, or the inner or outer ring of the steel ball is broken, or the alloy layer of the sliding bearing is peeled off or dropped. It is the direct cause of the heat generated by the fire pump bearings.