I seen many ball bearing sets for many Tamiya tanks on ebay, but there are none for the Tiger 1(#56010) or the King Tiger(#56018). Is there any for them? Do you need to buy ball bearings separately for them and see if they fit? Can the Tamiya Tiger tanks use ball bearings or not? If they can't use ball bearings, then I'm guessing that's why there is no ball bearing sets for them. But there should be ball bearing sets for them, since there are ball bearing sets for the other Tamiya tanks.[&:]