8483.90.10.50/Idler Chain Sprocket for Timing Drives/Japan

Idler Chain Sprocket for Timing Drives from Japan

Non-driven idler sprocket used to maintain tension in roller chain timing drives for machinery. HTS 8483.90.1050 covers this as 'other' chain sprocket parts presented separately. Common in printing presses and textile machinery.

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

• Document as 'tensioning sprocket' with engineering drawings to support separate classification

• Ensure compliance with ISO 606 chain standards for interoperability claims