Helical Gearbox Input Shaft

This precision-machined steel input shaft transmits rotational power into a helical gearbox, featuring splines for secure meshing with the primary gear. It is classified under HTS 8483.90.50 as a dedicated part of gearing and gearboxes, essential for speed reduction in industrial machinery. Designed for high-torque applications in manufacturing equipment.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China2.5%+35.0%37.5%
🇲🇽Mexico2.5%+10.0%12.5%
🇨🇦Canada2.5%+10.0%12.5%
🇩🇪Germany2.5%+10.0%12.5%
🇯🇵Japan2.5%+10.0%12.5%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

8483.10.50Lower: 35% vs 37.5%

If supplied as a standalone transmission shaft without gearbox-specific features

Plain transmission shafts fall under 8483.10, lacking dedicated gearing integration.

8483.50.90Higher: 37.8% vs 37.5%

If for flywheel applications in engines

Shafts integral to flywheels are classified separately under speed changer parts for rotational inertia.

8411.99.90Lower: 37.4% vs 37.5%

If exclusively for turbocharger assemblies

Parts of specific machinery like turbochargers shift to Chapter 84 end-use headings.

Not sure which classification is right?

Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.

Import Tips & Compliance

Verify material composition (e.g

alloy steel) and machining tolerances via certified engineering drawings to confirm classification as gearbox parts

Include detailed assembly diagrams showing integration with gears to avoid reclassification as general shafts under 8483.10

Ensure origin certificates for steel components to leverage preferential duty rates under trade agreements

Related Products under HTS 8483.90.50

Spiral Bevel Gearbox Thrust Bearing Spacer

Precision-ground spacer maintains axial clearances in spiral bevel gearbox thrust bearing arrangements, preventing gear tooth overload. HTS 8483.90.50 part for heavy-duty speed changers in marine winches. Material-matched to housing expansion rates.

Planetary Gearbox Carrier Plate

A forged aluminum carrier plate holds planet gears within a planetary gearbox, enabling multi-stage speed reduction and torque multiplication. Classified under HTS 8483.90.50 as a core internal part of gear boxes and speed changers used in robotics and automation. Precision holes ensure proper gear meshing and load distribution.

Worm Gearbox Bronze Worm Wheel

This phosphor bronze worm wheel meshes with a worm screw in a worm gearbox to achieve high-ratio speed reduction with self-locking capability. It qualifies under HTS 8483.90.50 as a part of gearing and other speed changers for conveyor and hoist systems. High wear resistance suits heavy-duty industrial use.

Cycloidal Speed Reducer Housing

Cast iron housing encases eccentric discs and pins in a cycloidal speed reducer, providing structural integrity for high-shock load applications. Classified as HTS 8483.90.50 parts of gear boxes and speed changers in packaging machinery. Integral mounting flanges ensure alignment.

Torque Converter Stator Assembly

Multi-bladed stator redirects fluid flow in automatic transmission torque converters to multiply engine torque during acceleration. Falls under HTS 8483.90.50 as parts of speed changers including torque converters for automotive and industrial applications. Precision vanes optimize hydraulic efficiency.

Inline Helical Gearbox Output Flange

Machined steel output flange couples inline helical gearboxes to driven equipment, featuring precise bolt patterns and centering diameters. HTS 8483.90.50 classification applies to this gearbox mounting part for conveyor drives. Balanced design minimizes vibration.