CNC Gear Profile Grinder
A computer numerically controlled machine designed for precision grinding of gear tooth profiles on spur and helical gears made from metal or cermets. It falls under HTS 8461.40.50.70 as a gear grinding machine not elsewhere specified, used in high-precision manufacturing for automotive and aerospace transmissions. The machine removes material through abrasive grinding to achieve exact gear specifications.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If used for general metal profile grinding, not specifically gears
Shifts to other grinding machines if primary function isn't gear-specific finishing.
If for semiconductor wafer grinding applications
Statistical notes direct wafer grinders to Chapter 84 semiconductor provisions rather than general machine tools.
If imported as parts for gear grinding machines
Unfinished components or accessories classify under parts of metalworking machines.
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Import Tips & Compliance
• Verify machine specifications match 'gear grinding' criteria per Chapter 84 notes to avoid misclassification as general grinding machines
• Include detailed technical brochures and end-use certificates proving use for gear finishing to comply with U.S
• Customs requirements
Related Products under HTS 8461.40.50.70
Internal Gear Honing Machine
Machine using honing stones to finish internal gear teeth surfaces for improved meshing and noise reduction in planetary gear sets. HTS 8461.40.50.70 covers this as other gear finishing equipment working by material removal on metal gears. Common in automotive differential manufacturing.
CNC Hob Grinding Machine
Machine for regrinding hob cutters used in gear hobbing operations, restoring precise tooth profiles through CNC-controlled grinding. HTS 8461.40.50.70 as other gear grinding for metal tool refurbishment. Essential maintenance equipment for gear factories.
Thread Grinding Machine for Worm Gears
Specialized grinder for finishing threads on worm gears used in industrial gearboxes, removing metal via abrasive wheels to precise tolerances. Classified under HTS 8461.40.50.70 as 'other' gear grinding machines for metal/cermet workpieces. Essential for power transmission components in heavy machinery.
Spline Grinding Machine
Precision grinder for finishing splines on shafts and hubs used in drivetrain connections, achieving micron-level accuracy through metal removal. Falls under HTS 8461.40.50.70 as other gear grinding/finishing for non-standard gear forms. Used in heavy equipment manufacturing.
Bevel Gear Finishing Grinder
Grinding machine for final finishing of bevel gear tooth surfaces using cup wheels, essential for right-angle drives in differentials. HTS 8461.40.50.70 as other gear grinding machines for metal/cermets. Provides surface finish required for high-speed applications.
Gear Tooth Superfinishing Machine
Uses vibratory stones or tapes for mirror finishing of gear teeth to reduce friction and wear in high-performance transmissions. Classified HTS 8461.40.50.70 as gear finishing by material removal on metal gears. Critical for Formula racing and aviation gearboxes.