Drive Ratio Calculator
Belt Pulleys and
Figuring out those
belt pulley and sprocket sizes is made easy with this
Replace the blue numbers with your own.
calculate, click on the Total or press your 'Tab' key.
Enter your motor rpm and the gear ratio of
your reducer (if no reducer is present set the ratio at 1:1).
For Belt Pulleys enter the diameter of the pulleys
For Sprockets enter the number teeth on the
You can enter drive ratios instead of pulleys and
Adjust the belt pulley or sprocket you want to change
until you achieve your desired Final RPM.
and Adjust Your Roll RPM