[jpswift1]

Your best bet would be to get triple lip seal bearings for the outer bearings. They will have an "R3" at the end of the part number. Call Buffalo Bearing and tell them you're working on a 6 wheeler (Attex) and that you need the 52mm outside diameter (that are sandwiched between the two piece stamped flanges) with 1" inside diameter and the locking collar. Their number is (716) 374-1720. They'll know just what you need. Good luck with it and keep me updated.