Bearings are what enable the gears to rotate easily. They are generally built out of bronze or brass, plus they suit into races (or grooves) inside the gearbox housing. We use cookies making sure that we give you the very best expertise on our website. For more info examine our https://filtergearbox02222.howeweb.com/34740002/how-much-you-need-to-expect-you-ll-pay-for-a-good-filter-gearbox