The motive force utilizes the gear lever to alter or change the equipment. The lever moves in a specific way according to design and style. Spur and helical gears are Employed in the sliding mesh gearbox to act. Spur equipment’s enamel make a parallel reference to the gear axis. https://jeffreyobjtd.ampedpages.com/not-known-factual-statements-about-gearbox-60774667