Sundry Bits Older 50 volt DC motors approx 200 watt 200mm long and 100mm in dia can be used as generators or will run OK on 12 volts. 5/8 shaft. 36 - 90 volt same dimensions as above,better quality, but can be used as servo motors BLDC motors for motion control, 24 volt, electrically commutated. Can supply window software to run off the back of LPT port with *extra Hardware 5/8 dia approx shafts