Instead of thinking about the motor think about keeping the VFD cool. If you mount it in an enclosure it could overheat. Might want to use one of those fans for that. Check out the manual/specsThanks! That’s the kind of answer that I like!
We may be talking past each other. My spindle isn’t threaded on the outboard side. Either internal or external.Don't convert to 1 phase. The 3 phase will be so much smoother and quiet. Get the VFD for sure. TECO makes a nice unit. Simple to install and many many features can be programmed.
