This is a great running brand NEW motor. I got it from an overstock sale where it was labeled new never used. ( thats easy to see)   .The last 2 pictures show 4-1/2" centering lip, and 5-7/8" bolt center. It is wired for 115 volts now, but can easily be changed to 230 volts if needed.There is a 1.700" diameter pulley on it. I test ran it for 30 minutes, it is perfect..I will ship right away, and Guarantee it.