Roger that, no oil. Didn't think about it getting trapped under the bearing. Somewhere I've got a piece of heavy wall aluminum pipe that worked perfectly last time I did this, figured it was soft enough not to score the bearing surface on the axle. Warming is no problem, as I have an old electric smoker in the shop. Works great for heating, drying etc, even if the first few parts came out smelling like bbq... Thanks for the replies, hopefully I can get back on this project tomorrow.