The motive force utilizes the equipment lever to alter or change the equipment. The lever moves in a selected way according to style. Spur and helical gears are used in the sliding mesh gearbox to act. Spur gear’s tooth come up with a parallel connection with the gear axis. https://johnathanuvurr.ttblogs.com/13450795/the-fact-about-gearbox-that-no-one-is-suggesting