Inner wheel bearing

If the bearing is good it wouldn't turn to outer race and wear the hub bore. The bearing is very hard steel. I all my days I've never seen a outer race go down in diameter. The cast iron wears. Back in the day, if the bore was just slightly worn, we would use a center punch to put a bunch of scars in the bore. The punch marks raise some cast so the race will drive in and stay still. If the bore is worn too much that wont work. It will need repair or replace. Good luck with it.