Not really sure where else to put this.
Lost another wheel bearing this past weekend. I always keep a length of chain and a shackle just for this purpose. Drive the wheel with the bad bearing up onto a block or a rock to heavily load that side of the equalizer. Then double wrap your chain like so and then pull the wheel off the bad bearing. Voila, good to go.
If it's not obvious, the chained up axle keeps the other tire from stuffing into the trailer deck. Also keeps the leaf spring from bottoming out on the frame.
Obviously you need axle capacity to pull this off. In my case the trailer originally had a single 2000 lbs axle. I replaced with the tandem 3500 lbs axles, so even when I'm down to one, it's still plenty of beef.