`BS = pi/2* "D" * "RPMs" `

Enter a value for all fields

The Speed of a Belt calculator computes the speed at which a linear length of belt travels around a pulley  based on the diameter (D)  of the pulley and the rotation rate (R).Belt

INSTRUCTIONS: Choose units and enter the following:

• (D) Diameter of Pulley
• (RPM) Rotation Rate

Belt Speed (BS): The calculator computes the belt speed in feet per second.  However, this can be automatically converted to other velocity units via the pull-down menu.

The Math

The formula for the speed of the belt  is: 

               BS = (D •π • R)/(2π)  = ½•D•RPM

where:

• BS is the Belt Speed
• D is the diameter of the pulley
• RPM is the rotation rate (rpms) of the pulley

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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

References

• Handyman In~Your~Pocket page 42 :(Young and Glover)2012 published by Sequoia Publishing Inc of Littleton, Colorado, U.S.A.