In essence, gears are just circles with enamel connecting them. A gear transmits a round movement among two distinct shafts by rotating and meshing with A different gear on another shaft. Gears occur in a number of styles and sizes, like spur gear, helical gear, bevel gear, and worm gear. https://andygnmml.sharebyblog.com/33974978/automobile-gearbox-things-to-know-before-you-buy