Neverlube bearing replacements

You're absolutely correct about the mileage issue comparing cars to travel trailers, but I would still think that there is a relation between all the suspension components and the bearings, that relation being potentially that all components are not to automotive quality. Definitely everything besides the bearings seem like pre-depression technology but without the care I think people at one time might have taken in their work. After fighting ( usually in the middle of a trip) with EVERY component on these axles except the bearings, it's just hard to trust them. And even though this trailer probably has only between 60 and 75 thousand miles, miles are not the only determiner of potential breakdown. Age certainly takes its toll alone, and though I can't really explain it, sometimes it seems like just sitting for long periods has its own unique impact. An, of course, most automotive bearings aren't loaded to one fourth of 13 to14 thousand pounds on a 16000 GVWR vehicle (though large trucks are, which is why I was hoping these bearings would cross with some commercial truck bearings). I don't think I can say with any degree of confidence that my bearings are soon going to leave me stranded, but I can't say the opposite with any confidence either. I think being prudent might be different than seeking warm fuzzies though you may be right. I may just be chicken.