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8439.91.90.00/Brown Stock Thickener Drive Gear/Japan

Brown Stock Thickener Drive Gear from Japan

Precision drive gear for vacuum rotary thickeners that dewater brown stock pulp prior to bleaching. Classified under HTS 8439.91.90.00 for parts of pulp-making machinery. Provides reliable torque for continuous thickening operations.

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%
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Import Tips

• Gear tooth profile drawings essential; noise/vibration specs for validation; avoid general transmission gear classification