Hi, I have two pulleys attached with a V belt but I’m unsure how to calculate the gearing ratio. As the belt is in contact along the depth of its V groove then it has an inside and outside circumference for both pulleys with the inside dimensions always giving a higher gearing ration than the outside ones. I think.
Is this right and if so which is the correct circumference to use and why?
Is this right and if so which is the correct circumference to use and why?