Float Zone Crystal Bearing Inner Ring from Japan
Float zone purified silicon inner ring for vacuum ball bearings in zone refining equipment. Ultra-low oxygen content prevents contamination in GaAs crystal growth. HTS 8482.99.05.00 for specialized ball bearing inner rings.
Duty Rate — Japan → United States
19.9%
Rate breakdown
9903.03.0110%Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Import Tips
• Document float zone process (oxygen <1ppb) and vacuum rating (>10^-8 Torr)
• Distinguish from Czochralski material via impurity specs
• Single-piece import only; assembled vacuum bearings may reclassify