Bearings are what allow the gears to rotate efficiently. They are generally made out of bronze or brass, and so they match into races (or grooves) from the gearbox housing. We use cookies in order that we supply you with the greatest knowledge on our Internet site. For more info https://filter-gearbox73826.csublogs.com/41110339/how-much-you-need-to-expect-you-ll-pay-for-a-good-filter-gearbox