Industrial Worm Gear Reducer
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.
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More Specific Codes
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Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If containing chain sprockets or toothed wheels as primary elements
Separate classification for transmission elements like sprockets under 8483.50 rather than complete speed changer assemblies.
If for semiconductor wafer processing equipment
Precision speed changers integral to semiconductor manufacturing machines classified as parts of those machines in Chapter 84.
If imported as individual gear sets without housing
Parts of speed changers classified separately under 8483.90, not as complete functional units.
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Import Tips & Compliance
• 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
Related Products under HTS 8483.40.50
Manual Multi-Speed Gearbox
A variable ratio gearbox with multiple manually selectable speeds for machine tools and agricultural equipment. Classified in HTS 8483.40.50 due to hand-lever operation for ratio changes without electronic controls. Provides precise speed control for drilling, milling, and tractor PTO drives.
Agricultural Tractor PTO Speed Changer
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