Why the temperature of the water pump bearing is too high

The water pump bearing manufacturer will share with you why the temperature of the water pump bearing is too high. Next, let’s take a look at the reasons.

  One possibility is that the static balance of the water pump rotor is not good. The radial force of the water pump rotor increases and the bearing load increases, causing the bearing to heat up.

  2. Vibration of the water pump when operating under non-design point conditions will also cause the water pump bearing to heat up.

  Three water pump shafts are bent or out of concentricity, which will cause the water pump to vibrate and cause bearing heating or wear.

  The matching clearance of the four bearings does not meet the requirements. If the fit between the inner ring of the bearing and the water pump shaft, the outer ring of the bearing and the bearing body is too loose or too tight, it can cause the bearing to heat up. (Too tight fit will make the bearing inflexible; too loose fit will make the inner ring of the bearing rotate or the entire bearing will rotate in the bearing body).

  Fifth, the axial thrust of the bearing of the water pump increases (for example, when the balance plate and the balance ring in the water pump are seriously damaged), the axial load on the bearing is increased, causing the bearing to heat up or even be damaged.

  Sixth, the amount of lubricating oil (grease) in the bearing is insufficient or excessive, the quality is poor, and there are debris, iron filings and other debris; the sliding bearing sometimes causes the bearing to heat up because the oil ring does not rotate and the oil is not brought into it.

  7. The bearing has been damaged (including the quality of the purchased bearing itself), which is often a common cause of bearing heating, such as the damage of the rolling bearing cage, the steel ball crushing the inner ring or the outer ring fracture; the alloy layer of the sliding bearing peels off and falls off Wait. In this case, the sound at the bearing is abnormal and the noise is loud, so the bearing should be disassembled for inspection and replaced in time.

 In summary, we should pay attention to observation during normal use, and find out the cause in time, and then make it easier to deal with.