Oil-Impregnated Sintered Bronze Bushing for Float Zone Crystal Grower from China
Self-lubricating oil-impregnated sintered bronze plain shaft bearing without housing, supporting shafts in float zone crystal growers for pure semiconductor material production. Classified in HTS 8483.30.8090 for plain shaft bearings in specialized semiconductor equipment.
Duty Rate — China → United States
54.5%
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
9903.88.0225%Except as provided in headings 9903.88.12, 9903.88.17, 9903.88.20, 9903.88.54, 9903.88.59, 9903.88.61, 9903.88.63, 9903.88.66, 9903.88.67, 9903.88.68, 9903.88.69, or 9903.88.70, articles the product of China, as provided for in U.S. note 20(c) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(d)
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 impregnation specs and porosity data to validate as plain bearing vs. porous metal article
• Ensure oil type is non-volatile for cleanroom certification
• Declare as 'without housing' explicitly on commercial invoice