according to some, it is an absolute no-no on any vehicle. they say the bearings and races are matched. but then you get new rotors with new races, and reuse old bearings, so.....

other than that, if the bearing went bad, the race probably is not in fine shape. if it has any stripes, or discoloration, or anything other than a smooth, unmarked surface, it should be replaced.

i have replaced bearings without races before, but if it is because the bearing is bad, i replace the race no matter how it looks.