Just looks like metal fatigue to me, just a bad metal tempering job
Good idea, Charley. :smile:For a motor of mine, I would dis-assemble it and take the rotor and shaft to a friens's machine shop, cut a new keyway on the opposite side of the shaft, re-assemble the motor with a new key and pulley, using blue Loctite on the set screw, probably backing up the set screw with a second on on top of the first to lock the first in place, and put the motor back into service. No way would I buy another motor if I could save this one.
Charley
I know there is a way to rescue that, but can't recall just what it is now, but does involve seeing a machinist. Not your way, but your way should work just as well. A machinist might even know a different way to fix the problem. I'm like you, I would definitely take it to a machinist first.For a motor of mine, I would dis-assemble it and take the rotor and shaft to a friens's machine shop, cut a new keyway on the opposite side of the shaft, re-assemble the motor with a new key and pulley, using blue Loctite on the set screw, probably backing up the set screw with a second on on top of the first to lock the first in place, and put the motor back into service. No way would I buy another motor if I could save this one.
Charley