In essence, gears are just circles with tooth connecting them. A equipment transmits a circular movement between two various shafts by rotating and meshing with another equipment on another shaft. Gears appear in a variety of shapes and sizes, such as spur gear, helical equipment, bevel gear, and worm gear. https://automobilegearbox17394.blogs100.com/34636398/examine-this-report-on-automobile-gearbox