"Morgans" wrote in message
...


Out of all of the styles of PSRU's out there, I tend to like the design of
the toothed belt setups. It just looks right, I think, and seems to solve
a lot of tricky problems, (like harmonic and torsional vibration) in a
simple way.
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How do "toothed belt setups" solve harmonic and torsional vibrations
problems in a simple way?