Why is my dryer squealing even after roller replacement and lubrication?
Were the shafts clean? On dryers that I have replaced rollers there has been residue from the original roller. This residue increases the friction and may be the cause of your noise , the rollers I have replaced did not have bearings but were like a dense plastic with graphite impregnated they were not supposed to be lubricated if you have similar you might try cleaning with some isopropyl it sounds funny but a lubricant may cause problems in this application, if a lube is needed a grease would be more appropriate.