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Lubrication of Pump Lineshaft Bearings

Lubrication of Pump Lineshaft Bearings

Lubrication of Pump Lineshaft Bearings

(OP)
In a vertical turbine pump (VS1), I'm trying to calculate the minimum speed that we can operate the pump.  Is there a way I can calculate the minimum speed required to properly lubricate the lineshaft bearings?  Is this a function of fluid speed in column, or some sort of pressure drop?

I appreciate the help!

Thanks,
Theron

RE: Lubrication of Pump Lineshaft Bearings

(OP)
Nevermind:  The pump manufacturer said there are spiral grooves machined into the bearings such that they lubricate themselves.  All I have to do is ensure bearings see fluid.

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