I have to agree with whoever it is on here who keeps saying "Do you pack your tow vehicle bearings that often"?
He makes a good point because who bothers to pull their rotors and repack every year and they run much hotter than any trailer wheel I have ever shot my temp gun at or put my hand on.
Not knowing what the previous owner did or how they were packed at the factory I do them so I know everything is good. I would pull the wheels on a new rig and check the amount of grease because I have seen new wheel bearings in various types of equipment with a bare minimum of grease. Either someone told them to cut costs or however or whoever was packing the bearings with no grease in the center cavity. They appeared to be properly pushing the grease into the bearing cone but there was nothing on the center of the spindle or cavity area. It appeared that they were using a bearing packer but not doing any more than that. I contacted a bearing supplier many years ago when seeing this and they said the cavity should be 80% full.
You dont have many miles but you do have years. I have seen wheel bearings start to rust or corrode in the spot that they have been sitting. When you check the bearings wash them out good and use a flashlight and magnifying glass if needed to look beyond the rollers and inspect the inner race area just as you would look at the cup. Roll the rollers and cage so that you can see the entire surface. Roll each roller to look at all of it. Like they say, the chain is only as strong as the weakest link.
