Quote Originally Posted by BarrenRealms007 View Post
The diameter and the circumference are two different things. A 3-1/2" diamter rope would not fit in that pully, a rope with a cir. of 3-1/2" probably would.
Curiously...a circumference calculator suggests a rope with a circumference of 3.5" would have a diameter of 1.1140846016432 inches. To my eye the pulley is in fact designed for a rope very near 1". Interesting. Now...the key question again. If you have a steel pulley and use a steel cable of 3/8" is that going to grind away the pulley material or not?