DZ, I have to do the brakes on my T-Top real soon ( skitime is comming!), I will measure the difference in flange diameter from a stock hub, to one of my machined ones., off hand, it may be 1/2" off the total diameter, but don't go cutting that much off yet!
I don't hit on the flange itself to get stuck bearings out of the spindle, I hit on the mounting flange.
I think this picture I'm gonna post is one I edited for Rikker to show where i hit the flange with a hammer and drift to free a rusted in bearing.