The bearings are a slip fit on the spindle.
They are supposed to stay in the hub, although the cone of the outer will fall out once you remove the spindle nuts, and the cone of the inner will come out after the seal is removed. Both races/cups will need to be pressed or driven out of the hub.
By dimple the journals he was referring to the practice of repeatedly dimpling an undersized journal with a hammer and a center punch, then dressing it to size best you can.
I really don't like this "repair" technique and urge you not to use it. It is not a long lasting and reliable solution, but it is quick, cheap, and easy..
Grigg