Originally Posted by swamp2
My gut instinct about the phyiscs, along with the fact that spacers are so widely available and used says that premature bearing wear will not be an issue. You do see nearly the same effect with aftermarket wheels with differing offsets as well. Don't think this has caused many folks premature bearing wear either.
+1. Not to mention that spacers are most commonly used at the 10mm-20mm range, and the added distance is very minimal.