Worm Gear for Reducer Drive from China
Screw-like worm gear paired with a wheel in right-angle speed reducers for high torque applications. HTS 8483.90.80 covers it as an 'Other' toothed wheel presented separately for gearing systems. Used in conveyors and lifts for motion conversion.
Duty Rate — China → United States
37.8%
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
9903.88.0125%Except as provided in headings 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(b) [to this subchapter]
Import Tips
• Include helix angle and module specs in invoices to confirm gearing function over plain screws
• Obtain supplier affidavits verifying not plain shaft bearings to prevent reclassification
• Avoid bulk packaging that suggests sets; import as individual elements to stay in 8483.90.80