Why the temperature of automobile water pump bearings is too high

Auto water pump bearing manufacturers share with you why the temperature of auto water pump bearings is too high, then let’s take a look at the reasons?

  The first * may be the poor static balance of the pump rotor. The radial force of the water pump rotor increases and the bearing load increases, causing the bearing to heat up.

   The second water pump will vibrate when operating under non-design point conditions, which will also cause the water pump bearings to heat up.

   The third water pump shaft is bent or out of concentricity, which will cause the water pump to vibrate and then cause heating or wear of the bearing.

The fit clearance of the fourth bearing 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, because the axial thrust of the water pump bearing 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, which causes the bearing to heat up and damage it.

  Sixth, the amount of lubricating oil (grease) in the sixth 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 does not bring the oil.

  The seventh 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 fracture of the outer ring; the alloy layer of the sliding bearing peels off and falls Block etc. 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.