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Lloyd E. Sponenburgh[_3_]

fired this volley in
:

These are for an ENGINE that runs 3600 RPM. The compressor runs closer
to 600 RPM and experiences significantly less compressive stress as
well as a lot less stretch.

They're also for engines that are made in the tens of millions per year
to be 'throwaway' devices, and for which they need to supply parts to
make their market buy the engines.

Good compressor pumps sell in the tens of thousands per year.

You figure the economies of scale.

Lloyd