I picked up a couple nema34 compumotor 83-93MO motors from a surplus shop for a good price. i looked up the specs, plenty of torque for my little micro mill.

BUT, they have no flats or keyways on the shafts. how are you supposed couple anything to the shaft?

I guessI could heat up a bushing and do a press fit on it. but then how would i ever get that bushing off if i needed to replace it?