Belt Pulley RPMs

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

Simple Machine Calculators

• Lever Beam Length 
• Leverage Lift Weight 
• Fulcrum Position 
• Belt Length 
• Belt Speed
• RPMs to Linear Velocity
• RPMs from linear velocity and diameter 
• 2nd Pulley RPMs
• 2nd Pulley Diameter 
• RPM of 4th pulley on three shafts 
• 2nd Gear RPM 
• Sum of Two Lengths
• Second Gear Torque
• Leadscrew Torque (lift)