Pump bearing temperature rise is mainly due to: (at this time as long as the attention to observe, in a timely manner to identify the cause, the treatment is not difficult)
1. Pump shaft bending or not, will make the pump vibration, cause bearing fever or wear.
2. Due to the increase in axial thrust (such as the pump in the balance disc and balance ring serious damage when), so that the bearing bearing the axial load increased, resulting in bearing heating and even damage.
3. Bearing lubricating oil (grease) amount is insufficient or excessive, poor quality, sediment, iron and other debris; sliding bearing sometimes because of oil ring does not rotate with oil and bearing heating.
4. Bearing clearance does not meet the requirements. Such as the bearing inner ring and pump shaft, the bearing outer ring and bearing body with too loose or too tight, can cause bearing fever. (with too tight will make the bearing rotation is not flexible; too loose, the inner ring of the bearing to rotate or the bearings in the bearing body rotation).
5. Water pump rotor static balance is not good. Pump rotor radial force increased, bearing load increased, resulting in bearing fever.
6. Pump in the non design point of the operating conditions to produce vibration, but also the pump bearing heat.
7. The bearing is damaged, including purchase of the bearing itself quality problems, often bearing heating is relatively common causes, such as rolling bearing maintained frame damage, steelball crush the inner or outer ring fracture; sliding bearing alloy layer peeling, off the block. In this case, the bearing noise is abnormal, the noise is large, and the bearing inspection should be opened in time to check and replace the bearing.
