To calculate the size of the pump pulley, you would need to divide the size of the drive pulley on the engine by the ratio we just calculated in the above problem.

How to measure pulley size. Allows the user to calculate the center distance, driven shaft speed, rim speed and requirement for dynamic balancing of a given belt and pulley arrangement.more. The mathematical equation to figure this out is as follows: The belts, chains, or rope sizes that will fit into the pulley.

To calculate the size of the pump pulley, you would need to divide the size of the drive pulley on the engine by the ratio we just calculated in the above problem. First, measure the outside diameter (od) of the pulley. This is a quick video to show you how to calculate how big your pulley is.

Now, you may get confused about how to measure it. With a couple quick measurements you can plug the numbers into this formula to get your belt size! Next, measure the pitch diameter (pd).

C = center to center distance between shafts d 1 = pitch diameter of larger pulley d 2 = pitch. For this, you need to evaluate the outside diameter of a pulley. If you know any 3 values (pulley sizes or rpm) and need to calculate the 4th, enter the 3 known values and hit calculate to find the missing value.

The pitch circle diameter of the timing belt pulley drive is the main parameter for the calculations. For instance, the sum of the two pulleys, in the above electric motor example is 4 inches + 6.5 inches = 10.5 inches. This is the measurement that represents the.

For timing pulleys, this is the measurement between the flanges. Pitch circle diameter (pcd) = (no of teeth * pitch)/ π. Yes, you need to measure the od (outside diameter) of v belt pulleys.