[Cory]

I would be interested in more details.

Did the VEX bearing stick before you pressed it in your bore? If not, it's possible (if not probable) that your bore could be too tight, or you pressed it in and indented the shield, or somehow damaged the race/ball interface.

Did you try an AndyMark bearing in the same bores that you displayed the runout in your first shot? Did you independently chuck the shaft and hub in a lathe/drill press/something else that spins to verify that each component spins true? Without all 3 of those actions, there's no way of isolating the problem to your bearing.