Whoa buddy. That assembly comes apart. Remove the inner bearing seal and the inner bearing. Flip it upside down and pop your lugs through with a hammer. The heads of the lugs will not clear the "gear looking" ABS ring. The ring is just pressed on. I just used the lugs to pop it off by tapping them on all four sides of the ABS ring. It just pops right off. Then you can seperate the rotor and hub. If it wants to be a bugger, heat it up a little with a torch first. You'll save yourself a lot of money doing it that way. This way you only have to replace the rotors, which you can get at any auto parts store. Hope this helps.
-Ken