[Andy Brockway]

You should review the Q&A answers to questions Q231 and Q240. Q231 considers the method of determining the frame perimeter. It rules against a wheel being .08" outside the frame perimeter. The inspectors may not consider a bearing as allowed as a protrusinon. Q240 did not consider a slot as a small clearance. Granted the question asked about a 1-1/2"x 1/2" slot.

You should ask in Q&A for an official ruling.