Will bearing issue heat entire drum or just the hub area?

Thanks everyone for your input.

About 4 weeks ago I turned the drums, installed new drum brake assemblies, bearings, races and seals on the front axle (front wheel on both sides). Ran out of day to do the other axle but I did go around and adjust them all. Must have screwed up the left front but I'm hoping it's a dragging brake and not an axle getting screwed up.

Only have time on weekends to work on it so it'll be a bit before I can get back into them.