I picked up this motor recently at the suggestion of some fellow homebrewers online. I wanted to give a quick description of how I hooked it up to my monster mill for those who are interested.
The motor runs at 177 RPM, which is a good speed for milling grain. This makes it ideal for a direct drive grain mill without need for belts and pulleys. It’s about 1/9 HP, which seemed questionable at first, but the people who used it on their mills had no problem with it being underpowered. I don’t have a lot of room, so I mounted it to some fiberboard that I can place on my mash tun at milling time and carry down to the basement when finished.
To mount the motor and connect it to the mill, I used:
3/4 in. fiberboard, cut to 18X24
1/2 in fiberboard, cut to 12X12, for mounting the mill
Spider Shaft Coupling Hub, 3/8″ Bore
Spider Shaft Coupling Hub, 1/2″ Bore
Buna-N Spider for Spider Shaft Coupling Hub
4″ corner braces
4 1/4″ bolts, 1 1/2″ long, nuts and washers
4 1/4″ bolts, 1″ long, nuts and washers
4 1/4″ nuts, fine thread, for the motor bolts
The braces came with holes that fit the mounting bolts on the front of the motor. With the mill raised on the 1/2 in. board, the drive shafts were perfectly aligned. How nice!
On the electrical side of things, I added a combo single pole/3-way switch so I could control both the power and the direction of the motor in case of a jam. The motor came with a big honking run capacitor, so I shielded that in a junction box to avoid any accidents on drunken brew days. I used a 16-gauge power tool cord to supply the juice. The motor itself came with a wiring diagram, but if you’re interested in how I connected it to the 3-way switch to provide forward-reverse options, let me know and I’ll draw up a diagram.
So far, I’ve had no problems with the motor driving the monster mill. It did about 5 pounds of grain in a minute in a test run, with no problems with starting up or stalling.