Turning Down a Motor Shaft

[November X-ray]

Ed - I had to reduce the shaft size on a motor last year when I could not find the exact replacement for my A/C unit. I took the shaft out of the motor and placed it between centers on the lathe, drove it with a lathe dog and used my tool post grinder to reduce both ends as the shaft was very hard (it has squirrel cages on both sides). I wrapped a couple of plastic grocery sacks around the armature and taped it up with masking tape to keep the grinding dust out. It's working well right this very minute as it is the main blower motor for my main air conditioner!

Good Luck!