She arrived on a pallet this morning. I was very quick to give 'er some power and see what happened:
It spins much much faster than my sepex motor does unloaded, but series wound motors do that because of built in field weakening (something most DIY EVers take for granted!). And it spins backwards. Since it only has two power studs, this will require rewiring some of the internals to reverse the polarity between the armature and field. For those who have read the Forkenswift build thread, this may turn into a giant rerun of that. But reruns are cool once in a while, no?
Another concern is the tiny internal splines on the drive end. Check out how tiny they actually are:
The mating shaft is about 1/2" diameter at its smallest point. According to all my research, 50 ft/lbs of torque requires a shaft diameter of 0.55", so this would be iffy at best.
I wonder if I should take the armature to my machinist and get him to install a shaft. That would be stronger and wouldn't require a new coupler.
