Bearings are what allow the gears to rotate effortlessly. They are usually designed out of bronze or brass, and they suit into races (or grooves) while in the gearbox housing. Contaminants can enter your gearbox oil via vents or the fill tube throughout checking/filling. More often than not, however, contaminants https://filter-gearbox43074.rimmablog.com/33231438/an-unbiased-view-of-filter-gearbox