So glad that nobody was hurt and damage was minimal.
When in my early 20's, we were lucky enough to camp next to an elderly couple who had been camping & towing for 60 years. I am 60 now. He shared some knowledge with me about camping and towing.
First thing he said was: grease & pack your bearings every single year, without fail, even if it is a brand new camper. He said that the #1 reason you see people with trailers on the side of the highway, broke down is : tires get hot because the bearings aren't greased properly, heat transfers from hub to wheel, then heat makes tire psi increase, then it blows. Also said to always carry an extra hub, with bearings, already greased.
Also said if we plan to travel the USA, to put bug screen in front of the radiator, to prevent overheating issues from bug swarms. Yes, that really is a thing. A bug swarm will plug your radiator very quickly. He said that it happened to them 2x before he started putting screen between radiator and grill.
We have done both of these things since. Have had zero issues. Unless you have a trailer made for offroad, chances are, it was put together by the absolute minimum standards. Generally speaking that doesn't happen with offroad specific trailers because the people who build them, take pride in their work.
Speaking as someone who has had 6 different on road trailers, I can attest to the shoddy workmanship and lack of wheel bearing grease in every single one. They were all bought new and all were lacking any sign of any grease in the wheel bearings.
