Heating in the bearings because:
1) reason: precision bearings low
Method: select provides accuracy of bearing.
2) reasons: main shaft bends or holes of the box not concentric
Method: repair of spindles or box.
3) reasons: the belt too tight
Methods: adjust belt tension properly.
4) reasons: poor lubrication
Method: selection of grades of lubricating materials provided and properly cleaned.
5) reasons: low Assembly quality
Approach: improving Assembly quality.
6) reason: bearing shell running in circles
Methods: the replacement of wear of bearings and related parts.
7) the axial force is too big
Method: cleaning, adjusting seal ring gap required between 0.2~0.3mm, correct balancing of the impeller diameter and checking static balance value.
8) the bearing damage
Methods: the replacement bearings.