Motor Vibration Damper Ring from Canada
Rubber-inertia ring assembly mounted on motor frame to reduce resonant vibration in 8501 industrial motors. Tuned to motor operating frequency for harmonic suppression. Damping part under 8503.00.95.20.
Duty Rate — Canada → United States
28%
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
• Specify natural frequency and damping coefficient matched to motor specs
• Include mounting stud pattern matching motor frame size
• Distinguish from automotive dampers (4010) via industrial motor design