Centrifugal pump shaft temperature
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:) Why does the shaft temperature rise after a centrifugal liquid pump is lubricated? Is this a common phenomenon?
Reply 1# li*aoliang616 Your meaning isn’t very clear! Generally, an oil level of 1/2 to 2/3 is most appropriate; too low a level results in poor cooling performance ； High temperatures make it difficult to dissipate heat, and both of these situations lead to an increase in temperature. You might have added too much lubricant.
Was too much oil added? Oil addition amount: 1/2-1/3 of the bearing cage is appropriate.
You have added too much oil. When using thin oil for lubrication, the lubricant should be applied about 1 mm above the center line of the bearing’s balls. Most bearing housings come equipped with an oil sight glass, which has scale markings on it; if you add too much oil, the bearings cannot be cooled properly, and as a result their temperature rises.