Bearings are what allow the gears to rotate easily. They are usually designed outside of bronze or brass, they usually match into races (or grooves) inside the gearbox housing. Essentially it is made of a steel plate with mesh-type inserts that protect against contaminants from getting into the transmission and https://travismnlki.activosblog.com/33070802/a-simple-key-for-filter-gearbox-unveiled