【Daily Q&A 0919】What do you want to say about this bearing?
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NU bearing, drive end of stuffing pump
It’s probably the lubricant that has dried out, with foreign objects having gotten in
The medium consists of lean liquid particles that can easily enter the bearing box
These bearings have been used to such an extent; no maintenance is done on them regularly
Poor dielectric quality; the dielectric enters the bearing housing.
It seems to be caused by water entering the bearing box, leading to poor lubrication
There are regular leaks from the filler, water accumulates in the bearing housing on a regular basis, and insufficient lubricant is applied. It’s likely that the pump’s rotation speed isn’t high (at most 1495 r/min) and the load is low; otherwise, the shaft would definitely get seized
It’s probably corrosion caused by water in the lubricant； Additionally, the quality of inspections needs to be improved.
Poor lubrication, high load, and metal particles cause wear.
The mechanical seal of the pump can be modified