Industrial Worm Gear Reducer from China
A fixed-ratio speed changer using a worm gear mechanism to reduce motor speed and increase torque for industrial machinery. It falls under HTS 8483.40.50 as a multiple ratio speed changer with ratios selected manually via handwheel or lever. Commonly used in conveyors, mixers, and elevators.
Duty Rate — China → United States
40%
Rate breakdown
9903.88.0325%Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 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(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
Import Tips
• Verify gear ratio specifications and manual selection mechanism in technical documentation to confirm classification under 8483.40.50
• Include material composition (e.g
• cast iron housing, steel gears) and CAD drawings for customs valuation