[BadmanRick]

I have a 2011 Bullet Premier 19FBPR. I just changed all 4 Dexter brakes with the never adjust electric brakes and all 4 drums. The dexter drums came with all new bearings and seals axle nut and lock for nut. The instructions which came with the hubs advise to repack the bearings once a year or 12000 miles. In the 8 years I have had my Travel trailer I repacked the bearings once. Otherwise I have the EZ-lube axels and kept greasing bearing once a years. When I took off the hubs the bearings were as good as new. Just keep them lubed and you should have no problem. Use a good quality wheel bearing grease.
The reason I changed the breaks is all the original electric breaks froze up from rust. They were the manual adjust breaks and I replaced them with the never adjust breaks. Hence new breaks and drums.