115V, 60Hz, single-phase, with the 30:1 reducer it comes in at 53 rpm and 135 lb-in of torque. This is a PSC motor, so the starting torque I think it is a little less, but I've have no problems with that. Bought on eBay for like $30. After I bought it I called the company that made it and gave them the serial number. They e-mailed me a CAD drawing with the thread information to mount it, wiring schematics, etc.
More pictures showing the wiring, coupling to the mill, etc.:
http://morebeer.ning.com/photo/albums/grain-mill-iWall switch turns it on, and the little light. The toggle switch reverses the direction.
I put that together, but share ownership with two other people that paid for the mill itself. I've since received a Crankenstein 3D as a gift and bought a motor, but haven't hooked that up yet. The new motor is a little higher RPM. I don't have the specs with me at the moment.