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Multiple Pulleys - RPM Reduction
To calculate multiple pulley sets, where the first driven (large) pulley shaft drives the second driver (small) pulley, and so on, enter first (small) driver pulley RPM and pulley set diameters and centers separated by commas and - as shown below. The RPM of the first driven (large) pulley is transferred to second set small (driver) pulley and so on. The sets of pulleys will be drawn at the bottom of the page with each set RPM reductions and total RPM reduction through all entered sets. In this instance, the initial small driver pulley RPM is 2000. The small pulley diameter is 6", large pulley diameter is 12" and centers is 16". The second set small pulley diameter is 7", large pulley diameter is 12" and centers is 18". Sets Or calculate identical sets at current diameters, centers and RPM See Also: Chain and Sprocket Calculator ![]() |
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