Zero-Backlash Ball Screw for 3D Printers from Canada
Preloaded dual-nut ball screw eliminating backlash for high-resolution Z-axis motion in industrial 3D printers. 16mm diameter precision-ground shaft, under HTS 8483.40.80.00 for roller screws.
Duty Rate — Canada → United States
13.8%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Specify preload amount (5-15 microns) and repeatability specs (<3 microns)
• Provide lead accuracy grade (C5-C7 per ISO 3408) in technical datasheet
• Distinguish from ACME screws by documenting ball recirculation system