8483.40.50/Observatory Telescope Drive Gearbox/Japan

Observatory Telescope Drive Gearbox from Japan

Precision manual speed changer for observatory telescope tracking with handwheel ratio selection. Extremely low backlash for sidereal tracking accuracy. HTS 8483.40.50 classification for astronomical applications.

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

• Specify tracking accuracy (<1 arcsecond) and periodic error specs

• Include temperature compensation documentation for -20°C to +40°C range

• Avoid classification under 9005 as optical instrument parts when mechanically separable