You can try prying it off or gently tapping it from behind but the bearing may have overheated and welded the race to the knuckle. If that is the case, the knuckle will have to be replaced also.
April, 16, 2013 AT 9:42 AM
If it is something that supposed to come off, use a little heat on it. Your local autostore--walmart should have a small bottle of something, I dont know if its propane or what. You can use that to put some heat on it, then see if it will come off. I tried to look up wheel races in my parts book, didn't see it.