For whatever it's worth, perhaps not much: I have an older set of Phil Woods 40-hole flanges. The bearings were glued in place. The glue was probably cyanoacrylate, superglue. One of the bearings on the rear wheel came loose after about 7 years and I could slide the entire axle out. Two different sized bearings, one still firmly attached. I lightly superglued it back in place, but haven't used the wheel since. I think cyanoacrylate is mildly soluble in acetone. It also apparently is softened by some lubricants or maybe something like WD-40, which is probably what happened to me. I used WD-40 liberally on a wet chain after rainy commutes. It might be possible to remove and replace the bearing yourself. Correct placement of the bearing is fairly simple if the second bearing is still in place. Don't know if I'd want to mess with it myself.