[AT] Old shop lathe motor-- motor questions for you "experts"

[John Wilkens]

INteresting observation!   Thanks Carl for your response--along with all 
you other fellas!    John W.



At 04:33 PM 01/18/2006, you wrote:
>The old motors were much larger for two reasons, first the insulation 
>could not tolerate the temperature today's motors routinely run at, so the 
>motor frame was made larger to have more surface area for heat 
>dissipation. Secondly, the insulation on the wires was thicker because it 
>could not tolerate the voltage without being thicker than today's 
>insulations.  To get the same magnetic induction (amp-turns) on an old 
>motor took more space because the wires could not be packed as close 
>together.  I doubt that the old motors were any better, especially with 
>today's bearings and oils, they just look like they should be because we 
>all think size matters.  --- what do you expect from a bunch of FATGs?
>Carl Gogol
>Manlius, NY
>AC 170D
>(2) AC D-14, AC 914H
>Simplicity 3112 & 7116
>Kubota F-2400
>
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                    In the wide-open spaces of NE Oregon