How Fast is it Turning
Speed Ratios of Pulleys and Motors
the speed of a spindle driven by an electric motor
choosing the proper size
pulley so that the speed of the driven spindle, being a saw blade, grinding
wheel or buffing pad is easily determined by this formula.
formula compares the ratios of the size and speed of the pulleys and can be used
to find any one of the above
unknowns as long as any three are known.