Recent Blogs
Two-speed Transmission via Four Pulleys: How Step Pulley Belt Drives Work, Diagram & Calculator
How a Two-speed Transmission via Four Pulleys works, with belt-shift sequence, ratio math, and a worked lathe example. Used in machine shops worldwide.
Shifting Device for Cone Pulleys: How It Works, Parts, Diagram, and Speed Ratio Calculator
How a shifting device for cone pulleys works on lathes, drill presses, and line-shaft machinery — belt fork geometry, ratio steps, and worked sizing example.