Towing reasons trailer wheel hubs to warmth up; submersion all through launching temporarily cools them, forming a vacuum which sucks in water and will lead to harm. The Bearing Good friend supplies permanent wheel bearing coverage and lubrication for every type of trailers. Water and dust are saved out of the hub. Lubricant degree will also be temporarily and simply checked via pressing on piston. High quality development options stainless-steel inner portions, and a triple chrome-plated barrel. May not crack or come out. You’ll be able to utterly submerge wheels and flow a ship on or off the trailer. (Pair). Outer Baring cone quantity LM67048, hub counter bored.