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If you open the door there will be a tag with the full model number on it, can you get that to us?
the rubbing did not have a scraping sound at all. I did notice when I manually rotated the drum from inside the dryer (no electric, no clothes inside) - rubbing sound then and something that sounded like it should have been coming from inside the drum, like a coin or a screw from someone's pocket that was falling down when drum rotated - nothing noted inside the drum however.
as far as electrical smell - not so sure I would know what that smells like. It smelled hot and I thought an extra order of rubber, but my nose could be off. I did take the front panel (low) off and ran it for a minute - nothing obvious from that angle. I did check the heat coils and they were clear of lint.