Internal Gear Honing Machine from Japan
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.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Label clearly as 'gear finishing' with photos of internal gear setup to prevent reclassification
• Document noise/vibration specs proving finishing function vs. rough machining
• Avoid pitfall of bulk import without serial numbers, triggering fair value assessment