Bearings are what allow the gears to rotate easily. They are generally created away from bronze or brass, they usually match into races (or grooves) from the gearbox housing. Contaminants can enter your gearbox oil through vents or the fill tube for the duration of examining/filling. Usually, on the other https://filter-gearbox88766.blog-kids.com/34307035/the-filter-gearbox-diaries