Pulley Rpm Calculator

Belt length around two pulleys. More than one stages of pulley speeds can be calculated in a compound drive system. 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.
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Pulley Rpm Calculator You Know For When You Re Building Your Own

2nd Pulley Rpm

Say you want to know what size pulley to use on that old planer to get 3450 rpm you know the motor rpm is 1725 and the pulley on the motor is 6.

Pulley rpm calculator. Adjust the drive and driven pulley sizes to achieve a certain rpm output. Simply enter the values and click calculate. Enter the motor speed in rpms. Pulley and speed calculator.

For example if your small pulley is 80mm diameter and spins at 1000 rpm and you need to find the second pulley size to spin it at 400 rpm enter pulley1 80 pulley 1 rpm 1000 pulley 2 rpm 400 and hit calculate to find the second pulley diameter. Choose your preferred units and enter the following. The output of the first stage. Using this pulley and belt size calculator.

The 2nd pulley rpm calculator computes the rpms of a second pulley based on the the rpms and diameter of the first pulley and the diameter of the second pulley. This simple to use calculator will give you the correct size pulley or motor speed to use if you know the actual or desired information. Below is a small calculator that will solve the ratio for you. This is an on line calculator for pulley size and revolutions per minute rpm.

Enter the motor pulley size in inches. Rpm d the rpms of the first pulleyd d the diameter of the first pulleyd d the diameter of the second pulley. Check the circle next to the item you are solving for and enter the remain three items in the spaces provided. Enter the driven pulley size in inches.

1750 rpm 1000 rpm 35 inches d 2 d 2 6125 inches.