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Maryland Metrics
JavaScript Calculator of Belt and Pulley Dimensions

This calculator gives exact solutions, standard equations are approximate

Enter input in mm or inches,
then click "calculate" button

Check boxes control calculated values


Driver Pulley Pitch Diameter: Variable
Driven Pulley Pitch Diameter: Variable
Drive Ratio: Variable

Center to Center Distance: Fixed
Belt Length: Fixed

Input RPM: Fixed
Output RPM: Fixed
minimum wrap angle:


[Results are in mm or inches depending upon input values]

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