In this video we learn how to replace trailer wheel bearings. First, place the trailer up on a jack and take the wheel off until you're left with the hub. To remove the dust cap, take a chisel and put it on the hub. Hammer it until it becomes loose and you can remove it. After this, remove the metal retainer from the axle and then you can remove the entire hub. From here, replace the hub with a brand new one and clean off the entire area around it. Once finished, replace the metal retainer as well as the rest of the parts you removed.