Looking to add a treadmill motor to a JD Wallace vintage bandsaw.

[jere]

I am a little overwhelmed by all the great advice guys, thanks! Its a good thing I decided to post this project there are few ideas I would have completely overlooked otherwise. The coils potentially making a current being a possible big one!

Since some photos will save a lot of typing here goes.

To illustrate the initial problem and throw some more speculation for others that might come across this in the future. There seems to be no induction system just the repulsion ceramic brush system. the two petrusions on opposite sides of the casting must have held the ceramic brushes with a spring at one point in time. this is what was driving the motor when I first got it.

Something like the brushes on this DC treadmill motor
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even though one motor is ac and the other DC neither have capacitors. Both use ceramic brushes the old motor (repulsion induction supposedly) disconnected the brushes when the centrifugal induction switch got up to the right speed. The repulsion motors system was known for having a very high torque start and for being high quality and long lasting.

Hopefully the treadmill motor will match the originals power or come close. it is considerably smaller but is rated for higher hp 1/2hp vs 2.5 hp( or so other motors that still have motor plates suggest.) the old motor on this saw seems much larger that other photos I have seen like this one on ebay vs the one I have note the center sections width compared to the ends

I found a second treadmill motor I forgot I had stashed away. one is a larger "everlast" made in Taiwan rated at 2.5hp it has a keyway for the flywheel it once held. It also has a larger diameter shaft and smaller fan.


here is the label for the tiawanse motor

here is the Chinese made motor that is rated at 1.75hp and was from a popular brand ( like live strong or Nordic track) it has the threaded shaft holding the flywheel on. I will save this one for a belt sander that is in the works. thanks for covering the treadmill motor C-bag I never thought about there being a difference in the treadmill motors.

Chinese treadmill label


original motors keyway handcut?


Back of the motor housing, which doesn't have much in the line of ventilation holes