Centrifugal pump
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Cantilever double-support centrifugal pump, front bearing housing temperature 62.3°C, rear bearing housing temperature 42.3°C℃； Is a temperature difference of over 20 degrees normal? Some time ago, the bearing shells were worn and crude oil got into them; now they are being used temporarily after being polished with sandpaper. Could this be the reason? ! !
The friction factor of the bearing bush depends on how much it is polished with sandpaper; there is definitely a relationship between the two
I’m not clear – which of the front and rear bearing housings do you mean is the drive end and which is the non-drive end? Is it a cantilever pump or a pump with support at both ends? It’s a cantilever pump, with the impeller located outside the two sets of bearings ； The pump is supported at both ends, with the impeller located between two sets of bearings.