That argument may fool other people. It sounds very good. We aren't in the 1950's anymore. They have options that will work.
If what you are stating applied to the bearings they presently have, the Mach 3 Engine would not have been able to run for hours. It would destroy itself immediately.
The Mach 3 Engine is continuous duty.
The Mach 3 Engine has run continuously for many many months. And like all engines, it was restarted after maintenance.
The CRD pump has both radial and thrust loading and both the radial and thrust pressures are massive.
I think the Dunning-Kruger effect applies to this situation.
As Charles Darwin wrote in his book The Descent of Man, "Ignorance more frequently begets confidence than does knowledge."
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