Bearings are what allow the gears to rotate easily. They are typically made outside of bronze or brass, they usually fit into races (or grooves) inside the gearbox housing. There are 2 main kinds of transmissions: automatic and manual. Automatic transmissions use fluid couplings in place of a clutch, and https://eduardoiuxuo.buyoutblog.com/34061301/the-ultimate-guide-to-filter-gearbox