Regarding the bearings of Dalian Empire shield pumps
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After disassembling a shielded pump, it was found that the edges of the graphite bearings were damaged. I would like to ask whether it is necessary to replace them with new bearings Should a pair be replaced at the same time? Is 610-207 a bearing model?
Not only is the edge damaged, but the thrust surface is also severely worn. It is necessary to check whether the alloy bushings are worn as well. If possible, both bearings should be replaced, and the axial play needs to be adjusted again. It is recommended to use media with high viscosity; the pump must be preheated before operation, otherwise the pump will experience vacuum conditions, which will accelerate wear of the thrust disc and bearings as well as the bushings and bearings. Frequent start-stop operations are also not advised.
The end faces of the bearing are clearly severely worn and need to be replaced. Motor number 610; 207 has been forgotten – it might be the material code for spare parts from the manufacturer?
It is recommended to pay attention to the process operation parameters on a regular basis to check whether the system is operating at low flow rates for extended periods of time
610-207 is the empire’s internal motor number
In such cases, it is generally necessary to replace them, and it is best to replace a pair.
It shouldn’t be very expensive; replace the set, so as to ensure proper operation. Meanwhile, examine the factors that led to this situation and take steps to correct them, in order to prevent similar issues from occurring again.
It definitely needs to be replaced. Get the equipment drawings and submit a material request based on the part numbers; generally, a certain stock of spare parts is required for this, as purchasing them on short notice will definitely cause delays.
Cause of failure: Incorrect use of the inlet gasket; the inner ring was too large and got caught by the impeller. Due to a long period without maintenance, the internal materials had undergone polymerization reactions; inspection revealed worn bearings, which were replaced to restore normal operation.