`RPMs = "bS" / (pi* "D" )`

Enter a value for all fields

The Belt Pulley RPMs calculator computes the RPMs of a pulley based on the belt speed (bS) and diameter (D) of the pulley.Belt

INSTRUCTIONS: Choose units and enter the following:

• (bS) This is the linear speed of the belt
• (D) This is the diameter of the pulley.

Pulley RPMs: The calculator return the rotation rate in revolutions per minute. However this can be automatically converted to compatible units via the pull-down menu.

The Math / Science

The formula for belt pulley RPMs is

   RPM  = bS / (π • D) 

where:

• RPM is the belt pulley rotation rate 
• bS is the belt speed
• D is the diameter of the pulley

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