Bearings are what allow the gears to rotate easily. They are usually manufactured out of bronze or brass, and they match into races (or grooves) within the gearbox housing. Contaminants can enter your gearbox oil by way of vents or maybe the fill tube in the course of examining/filling. Most https://filter-gearbox15802.snack-blog.com/34062873/the-filter-gearbox-diaries