My kitchenaid food mixer seems to have a frozen bearing. The motor is running and gettig hot to thenpoint of smoking, but nothing moves. I have taken it apart and checked the worm gear and the motor brushes. Both are fine. Going through the maintenance manual, a step at a time, I have doagnosed thatbitnis probably a frozen bearing. What can I do to fix this? Do I need to buy new bearings? Do I need to buy a new motor? To make things more complicated, I live in Brazil and this mixer was a wedding present from my deceased grandmother who bought it in the States. Kitchenaid Brazil won't touch it. Any ideas?

Food Mixers - KitchenAid