Bearings are what enable the gears to rotate smoothly. They are generally built from bronze or brass, plus they in shape into races (or grooves) from the gearbox housing. There are 2 primary types of transmissions: automated and guide. Automatic transmissions use fluid couplings as opposed to a clutch, and https://titusggfca.verybigblog.com/33296841/5-easy-facts-about-filter-gearbox-described