Stepper Motor Lead Screw Assembly

Precision lead screw coupled to stepper motor shaft for linear motion conversion in 8501 motors. Provides accurate positioning for CNC and automation applications. Motor-specific transmission part under 8503.00.95.20.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China3%+35.0%38%
🇲🇽Mexico3%+10.0%13%
🇨🇦Canada3%+10.0%13%
🇩🇪Germany3%+10.0%13%
🇯🇵Japan3%+10.0%13%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

8482.40Lower: 15.8% vs 38%

If independent ball/lead screws

Transmission shafts classified separately unless motor-integrated.

8503.00.95Same rate: 38%

If DC stepper motor components

DC motor parts have dedicated subheading.

8479.10Lower: 10% vs 38%

If for word processing machines

Typewriter parts take precedence for specific machinery.

Not sure which classification is right?

Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.

Import Tips & Compliance

Specify step angle compatibility and screw pitch matching motor torque specs

Distinguish from general ball screws (8482.40) via motor coupling design

Include system backlash specs proving integrated motor application

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