Tunneling Machine Cutter Bearing from Mexico
Sealed heavy-duty roller bearing for mounting disc cutters on tunnel boring machine cutterheads under heading 8430. Rated for extreme shock loads and contamination. Part of 8431.49.90.34 tunneling parts.
Duty Rate — Mexico → United States
25%
Rate breakdown
9903.82.0925%Except as provided for in headings 9903.82.16, 9903.82.20–9903.82.26 and 9903.85.68, articles of copper and derivative aluminum and steel articles, as provided for in subdivisions (c)(vi)–(viii) and (xi) of U.S. note 16 to this subchapter
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Include dynamic load ratings and IP68 sealing certs; prove exclusive TBM use vs general industrial; watch Section 232 on steel content