I just replaced the felt strip and the drum glide on my old dryer. The instructions that came with the kit say to make sure the paint inside the drum bearing surface is intact. It is not-- how could it be, it is constantly rubbing.
I can see how it could be a problem, when I first acquired the dryer, it had sat in a basement unused for quite some time and it developed rust. I think the rust was abrasive enough to cause the glides to wear out faster. Now the inside is polished and smooth.
I also see the problem of rust streaks on clothes but this repair should prevent clothes from slipping up in there anyway.
And I see good reason to make sure the lip inside the felt is painted as clothes will be rubbing against that and paint is worn away there.
So how important is painting the bearing surface? Suggested paint?