The reason of difficulty or friction during the rotation of the water pump parts

During operation of the pump, the occasional noise pump, or a component wear is very powerful, it is possible that the components in the process of rotation and other parts of the friction, but what parts prone to friction? How to solve this problem? Below to introduce in the pump parts difficult or friction causes in the rotating process and solving methods:
First we once found in the inspection process of pipeline clearance between the self suction pump or pump shaft bending, wear ring and fixed on the pump shell does not match, the stress is too large, or wear ring ring between the shaft swing impeller is too large, the impeller and the pump shell obstacles or dirt the pump casing wear ring, affect its operations and so on fault, cause operation failure of the pumps, the impact of operational efficiency, if you like ZX or CYZ self-priming pump self-priming pump impeller and pump body produce friction, which is relatively large wear parts, so that the cost increase of pump.
The main problem is the problem of the bearing, if the bearing is not straight, the pump shaft and other parts will deviate from, therefore should carry on alignment or replacement of bearings, or check the clearance, clearance to ensure accurate, in accordance with the requirements of the replacement of the impeller or the pump shell; once the stress is too large to be eliminated, to check on the completion of this work; to check the operating conditions of rotation and bearing on various components of the damage timely replacement, keep the wear ring of the plot, in accordance with the requirements of cleaning and replacement, from pollution, to ensure the normal operation of the pump.
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