The reason why the pump bearing temperature is too high

- Sep 12, 2017 -

Bearing with the gap does not meet the requirements. Such as bearing inner ring and pump shaft, bearing outer ring and bearing body, with too loose or too tight, can cause bearing heat. (With too tight will make the bearing rotation is not flexible; with too loose, will make the bearing inner ring or the entire bearing in the bearing body rotation). In the case of

The main reasons for the high temperature rise of the pump bearing are:

(1) the pump shaft bending or not heart, will make the pump vibration, causing the bearing heat or wear.

(2) due to axial thrust increases (such as the pump in the balance plate and the balance ring serious damage), so that the bearing to bear the axial load increases, resulting in bearing heat or even damage.

(3) the bearing within the lubricating oil (fat) the amount of insufficient or too much, poor quality, there are sediment, iron and other debris; sliding bearings sometimes because the oil ring does not rotate, bring the oil and cause bearing heat.

(4) bearing with the gap does not meet the requirements. Such as bearing inner ring and pump shaft, bearing outer ring and bearing body, with too loose or too tight, can cause bearing heat. (With too tight will make the bearing rotation is not flexible; with too loose, will make the bearing inner ring or the entire bearing in the bearing body rotation).

(5) The static balance of the pump rotor is not good. Pump rotor radial force increases, bearing load increases, resulting in bearing heat.

(6) the pump in the non-design point of time when the operating conditions of vibration, but also make the pump bearing heat.

(7) bearing is damaged (including the purchase of the bearing itself quality problems), often more common reasons for bearing heating, such as rolling bearing cage damage, ball crushing inner ring or outer ring fracture; sliding bearing alloy layer peeling off, Off and so on. This situation is abnormal sound bearing, noise, should be opened in time to check and replace the bearing.


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