You're getting yourself into a can of worms here. This will give you 12.8 (approx) foot pounds of torque, which may be fairly close to what you require. The question in my mind is what are you going to power it with? I would actually measure the torque required to turn the BC mill......... that alone can be an interesting challenge. Probably the easiest way is with a spring scale on the crank handle. Center to center distance on the handle of my BC is 5.5" That means that means that you would divide the force on the handle by 2.18 to get actual foot pounds of torque. Or multiply by .4583....
If you are really creative, you can figure out a way to hook a torque wrench up to the shaft and measure that way
I like stuff I build to work out of the box, so I do the math.............
Horsepower = torque * RPM / 5252
Problems crop up with dishonest ratings on motors..... is it actually 1/6 HP, and if so at what voltage is it 1/6 HP..... I would assume this is at the 130 volt figure. Simply hooking up a bridge rectifier to the line voltage....... if you know how to do it, will get you somewhere in this range, but it's not very clean.
I've used a lot of KBIC motor controllers on motors of this type......... They can be found on Ebay usually........ and fairly cheap, but they output 90Vmax. If torque were constant, this would be no problem......but electric motors have a torque curve like gas engines.
I personally think you are in over your head........... You want a simple AC induction motor.
I would never consider electric power on my BC.... unless I was a feeble old man..... The time and effort required to crush my grain is pretty trivial. I brew small... 2.5 gallons, and my typical grain bill is about 6 pounds....... Even at twice that I would still hand crank....
But then I have a "use it or lose it" philosophy. I actually walk whenever I have the opportunity....... 2 mile round trip to the post office every day.... Cook things from scratch instead of from a package...... Calculate figures in my head when practical.....mow my own lawn.... change my own oil and fix my own vehicles, break down and patch my own tires from car tires to heavy equipment tires, grow my own garden, kill things and eat them, reload my own ammo, Build things with my own hands, fix my own plumbing and electrical, paint, maintain my own well and septic system, furnace, cut, haul and spit my own firewood (with a maul)......... and of course grow (some of) my own hops and brew my own beer. The sedimentary lifestyle had not caught on here ;-). I'll be 60 this year, and I'll do things for myself until they plant me!!
H.W.
Need a helping hand not to bright on this subject.
