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Pulley Calculator - Centres, RPM, Belt Length and Speed

Large Pulley Diameter mm
Small Pulley Diameter mm
Pulley Centre Distance

Decrease RPM RPM Increase RPM
RPM
Centres


Enter Large and Small Pulley Diameters and Pulley Centre Distance.

Mouse over to decrease ~ increase pulley centres and display belt length.

Select RPM Large or RPM Small and enter RPM to calculate corresponding pulley RPM.

Mouse over Decrease RPM and Increase RPM to decrease ~ increase pulley RPM.

Hit 'Spin' button or mouse over diagram to animate.




Print Tickets Need to print numbered tickets? Design Tickets Free Online and Print on your Printer! Easy Step by Step Instructions. No Limits.

Use your iPad or Android Tablet On-Site Your iPad or Android Tablet is a valuable On-Site tool! Print Diagrams Printing to Scale Help

Lay your tablet on an angle to directly measure angles and automatically enter them into Roofing and Pitch Angle Calculator Apps.

Slider Controls To fine tune Slider Controls, click to select and use ◄ ► (cursor) keyboard keys.

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