I've seen the invertors drives and 3 phase motors widely available for lathes & mills, but how small does this technology go. Are there small fractional hp motors that can be run from these drives?. Ideally I'm looking for a motor about 4" diameter x 8" long. It is to replace a variable speed DC motor as a cheaper alternative than a DC brushless servo motor (they are expensive!).
Thanks
Kevin
The smallest standard motor I have listed in my catalogue is a 56 A frame size.
specification
2 pole, 2730 RPM, or 4 pole 1340 RPM, 0.09 kW, 0.12 HpDiameter of rear cowl 110mm, foot to shaft centre 56 mm overall length 228 mm
Just a little bigger than your ideal...
these are 230 / 400 V motors which run fine with the smaller inverters if set to 230 V
-- Jonathan
Barnes's theorem; for every foolproof device there is a fool greater than the proof.
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