In essence, gears are only circles with teeth connecting them. A gear transmits a round motion involving two various shafts by rotating and meshing with A further gear on another shaft. Gears appear in many different styles and sizes, including spur gear, helical gear, bevel gear, and worm gear. https://gearbox31852.bloguetechno.com/not-known-factual-statements-about-gearbox-68917076