Bearings are what allow the gears to rotate easily. They are usually produced away from bronze or brass, plus they fit into races (or grooves) while in the gearbox housing. Which is why companies arrived up with internal filters. These filters are available on numerous modern day computerized transmissions. Internal https://filtergearbox00998.is-blog.com/40610749/an-unbiased-view-of-filter-gearbox