Bearings are what enable the gears to rotate smoothly. They are usually made from bronze or brass, and they suit into races (or grooves) from the gearbox housing. Contaminants can enter your gearbox oil by means of vents or the fill tube through checking/filling. Most of the time, however, contaminants https://zaneqhwju.bloguerosa.com/33076246/an-unbiased-view-of-filter-gearbox