Steel Inner Bearing Race for Semiconductor Wafer Pullers from Japan
Precision-machined steel inner race designed for high-speed spindle bearings in Czochralski crystal pullers used to grow monocrystalline silicon boules. Classified under 8482.99.2580 as an other inner ring for specialized industrial bearings, distinct from standard automotive or machinery applications. Essential component ensuring rotational stability during semiconductor crystal growth process.
Duty Rate — Japan → United States
30.8%
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
• Verify material certification meets AISI 52100 standards for bearing steel; include end-use statement for semiconductor equipment to avoid reclassification; ensure dimensional tolerances documented for customs valuation