I have a 28 ft. TT and had the wheels bearings completely serviced in 2019. I have used the trailer only twice since then for 2 trips of 400 miles total. I would like to make another trip of about eq...
I would continue to run without worry. Usually I would say the first pack is especially important as I assume the bearings are assembled at the factory with the same quality care and precision as the rest of it.