[rohrmann]

Montana/Keystone doesn’t supply the bearings, but Dexter does. They are Chinese made, but a few years ago after having one fail, I replaced them all with USA made Timkens. As long as they are maintained properly, they should last the life of the trailer. If one looks bad during a repack, regardless of the brand, the bearing and race should be replaced, but only the bad one is needed. And the seals need replacement at each repack. Use the best grease available too, especially if you are doing the work, no reason to go cheap on anything.