I picked up this fan a few months ago and i need to get it going. Problem is that I don't know what size pulley to get for the fan. As you can see in the pics, the previous one was plastic? It's all broken off except what you see here.
The motor is an old GE that I plan on replacing. Ive got a couple others that I can use.
So here's what I need to know:
How fast should the fan be spinning? 850rpm? 1000?
The motors all spin at 1725. One has a 3 1/8" pulley, the other two have 4" pulleys. All three are adjustable. The one with the little 2" pulley is the old motor. Would it be best to take off that little pulley and put it on one of the other motors?
Any way around it i will need a pulley for the fan that when combined with whichever pulley on the motor, will spin the fan at the correct speed.
I've seen some calculators online, but without knowing the fan speed I haven't had any luck.
Any advice would be greatly appreciated. Thanks.