In essence, gears are just circles with enamel connecting them. A equipment transmits a circular movement amongst two different shafts by rotating and meshing with another equipment on the opposite shaft. Gears come in many different styles and sizes, which includes spur gear, helical gear, bevel gear, and worm gear. https://automobile-gearbox51616.aboutyoublog.com/38067715/the-greatest-guide-to-automobile-gearbox