Bearings are what allow the gears to rotate easily. They are usually designed outside of bronze or brass, they usually match into races (or grooves) inside the gearbox housing. We use cookies in order that we provide you with the finest knowledge on our Web page. For more information study https://filtergearbox07529.blogginaway.com/34735169/how-much-you-need-to-expect-you-ll-pay-for-a-good-filter-gearbox