Bearings are what enable the gears to rotate easily. They are usually built out of bronze or brass, plus they in good shape into races (or grooves) from the gearbox housing. We use cookies to make sure that we give you the greatest practical experience on our website. For more https://filter-gearbox43219.myparisblog.com/34654080/5-tips-about-filter-gearbox-you-can-use-today