Tutorials My Plans Shop Plans WOOD Magazine Plans Help Tips My Shop Tools Recalled Tool Directory Links Home   

Custom Search

Calculating Pulley Speeds 

Shot Glass Displaycase 
Shot Glass
Display Case
Pirate's Chest- free woodworking plans
Free Pirate
Chest Plans
Horse Stable woodworking plans 
Bink's Horse Stable
Bink's Lil Wheelbarrow

There have been times when it's nessacary to know and control the speed of cutters, etc. like on a drill press or lathe. There is a simple way of determining the speed if you know the speed of the motor and the diameter of the drive pulley and the driven pulley. You simply take the motor speed, or RPMs (revolutions per minute) and multily that by the diameter of the pulley mounted on the motor, or "drive pulley". Then divide the product by the diameter of the cutter pulley, or "driven pulley":

 Speed of drive pulley    X   Diameter of drive pulley

  Diameter of driven pulley


1,750 X 7.25 

= 4,613 RPM


If you have multiple pulleys, like in a bandsaw, just treat the driven
pulley in the first step, as the drive pulley in the second step.

Top Woodworking
        More Plans Down Here!  Visit Rockler.com - Woodworking Superstore!

Woodworking Plans



Free Catalog From Rockler Woodworking and Hardware!
First Name:
Last Name:
Address Line 1:
Address Line 2:
Other countries...
I'd also like to receive Rockler Email Exclusives 

 Recent Works
Help Tips
 My Plans
My Shop
Bink's Ride
Who's Bink?
Tool Recall
 Plans for your shop!
 Tool Directory
WOOD Magazine 
Scroll Saw