The whole width of the “belt housing,” which is where the belt actually travels in the pulley, should be measured.

How to measure a pulley. To quickly calculate the outside diameter (o.d.) in inches of any 8mm pitch timing belt pulley divide the number of teeth on the pulley by ten (10). C = center to center distance between shafts. First, measure the outside diameter (od) of the pulley.

D1 n1= d2 n2 (1) where. If you need an exact measurement, you can use the following formula: This means the pulley ratio must be.611 to drive the pump correctly.

Measure the diameter of the smaller pully. Next, determine the pulley’s wall thickness. The two basic pulley systems are.

Interestingly, the bearing load decreases when running: Next, measure the pitch diameter (pd). The simplest way to find the ratio of the required pulley is to divide the driven component (pump) by rpm.

Hypothetically speaking, if we had a 4 inch pulley on the motor, we would require a 6.55” pulley on the pump. How to measure a belt pulley. Measure or find the diameter of the bigger pulley measure or find the diameter or radius of the another smaller pulley measure the.

Well get out the tape measure and the calculator. Again, we will use both formulas to calculate the mechanical advantage. What if you have the correct belt and.