Bearings are what allow the gears to rotate smoothly. They are typically manufactured out of bronze or brass, and so they suit into races (or grooves) from the gearbox housing. We use cookies in order that we provide you with the greatest knowledge on our Web page. For more information https://filter-gearbox00764.blogofchange.com/34689400/the-smart-trick-of-filter-gearbox-that-no-one-is-discussing