Bearings are what allow the gears to rotate smoothly. They are usually built out of bronze or brass, and so they healthy into races (or grooves) within the gearbox housing. These often dress in out after some time. On top of that, the part the seal rides on can also https://filter-gearbox16802.blog-a-story.com/14870970/examine-this-report-on-filter-gearbox