Harmonic Drive Wave Generator from Canada
Cam-shaped wave generator flexes the harmonic drive flexspline for ultra-precise speed reduction ratios up to 160:1 in robotics. Novel classification under HTS 8483.90.50 as speed changer gearing part despite unique principle. Thin-walled bearing race optimizes deformation.
Duty Rate — Canada → United States
27.5%
Rate breakdown
9903.82.0925%Except as provided for in headings 9903.82.16, 9903.82.20–9903.82.26 and 9903.85.68, articles of copper and derivative aluminum and steel articles, as provided for in subdivisions (c)(vi)–(viii) and (xi) of U.S. note 16 to this subchapter
9903.05.900%Articles already subject to Section 232 (steel/aluminum/copper + derivatives, autos + parts, wood, medium/heavy vehicles + parts, semiconductors, patented pharma) — U.S. note 52(f)
Import Tips
• Proprietary design patents or technical literature establishes novelty
• Strain gauge test data proves flexing function
• Avoid generic 'bearing' descriptions in documentation