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8483.90.10.50/High-Speed Duplex Chain Sprocket/Japan

High-Speed Duplex Chain Sprocket from Japan

Precision balanced duplex sprocket for high RPM roller chain drives up to 3000 RPM. Alloy steel construction under HTS 8483.90.1050 as other chain sprockets. Used in CNC machine tool feeds.

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

• Include dynamic balance certification (G6.3 grade)

• Specify max RPM and lubrication requirements

• May require machine tool origin verification