Hi Alan,
Now that you mention it I recall the issue with the brushes lifting.
As with most areas in life, everything seems to be a trade off. I'll stay
tuned to the search for the perfect fluid.
It would be interesting to know the coefficient of thermal expansion for
various fluids at the temperatures generated by the motors in our operating
environments. It seems there would be several variables: continuous
and intermittent run time, cooling effect of the water, etc. Perhaps there
isn't enough expansion variation from fluid to fluid to even be concerned with
it. One can over-think these things.
Thanks,
Jim
In a message dated 12/23/2010 5:59:18 P.M. Central Standard Time,
alanjames@xtra.co.nz writes:
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