A tool designed to determine the rotational speed of a driven pulley based on the driving pulley’s speed and their respective diameters. The calculation hinges on the inverse relationship between diameter and rotational speed: a larger pulley rotating at a specific rate will drive a smaller pulley at a proportionately higher rate. As an example, if a motor spins a 4-inch pulley at 1750 RPM, and this pulley drives a 2-inch pulley, the driven pulley will rotate at approximately 3500 RPM.
This kind of calculation is fundamental in mechanical engineering and power transmission systems. Accurate determination of rotational speeds is essential for optimizing machine performance, controlling output speeds of equipment, and ensuring proper functioning of belt-driven systems. Historically, these calculations were performed manually using mathematical formulas. The advent of user-friendly online tools simplifies the process and minimizes the potential for human error.