Re: Bearing lube everywhere on 1 tire
Those are not bearing buddies. BobVT and Reelfishin got it right. And it is pretty clear to me that the rubber cap on the one that's spewing grease is not seated properly. Therefore it's spraying grease on your wheels at speed.
Take the cap off, clean the excess grease off so you can see how it fits, and if the rubber cap/grommet is not damaged, just put it back on properly. 2 minutes and a screwdriver (or maybe just your fingers) with a few rags should solve this problem. Or a buck or two to buy a new rubber cap.
Agree it's probably also time for a full disassembly/inspect/repack. This should be annual maintenance, so if you don't know when it was last done...it is now time. FYI buying bearing buddy bras will not help you here since you don't have bearing buddies. Don't buy them.
And if your tire is actually shredding it should be easy to identify the cause by someone who knows what they're looking for. My first suspicion would be a bent fender that's cutting the tire on bumps?? Or a bent axle...
I presume you bought this rig used? It seems your trailer needs a bit of service.