Of metalworking machine tools for cutting gears
Parts and accessories suitable for use solely or principally with the machines of headings 8456 to 8465, including work or tool holders, self-opening dieheads, dividing heads and other special attachments for the machines; tool holders for any type of tool for working in the hand: > Other: > For machines of headings 8456 to 8461: > Other: > Bed, base, table, head, tail, saddle, cradle, cross slide, column, arm, saw arm, wheelhead, tailstock, headstock, ram, frame, work-arbor support, and C-frame castings, weldments or fabrications: > Other: > Of metalworking machine tools for cutting gears
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.05, 9903.88.06, 9903.88.07, 9903.88.08, 9903.88.10, 9903.88.11, 9903.88.14, 9903.88.19, 9903.88.50, 9903.88.52, 9903.88.58, 9903.88.60, 9903.88.62, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(a) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(b) [to this subchapter]
Products classified under HTS 8466.93.30.00
Gear Hobbing Machine Bed Casting
This heavy-duty cast iron bed casting forms the foundational base for gear hobbing machines, which are metalworking tools specifically designed for cutting gears using a hob cutter. It supports the workpiece and hob head during high-precision gear tooth formation. Classified under HTS 8466.93.30.00 as a bed casting for gear-cutting metalworking machine tools of headings 8456-8461.
Gear Shaping Machine Column Fabrication
A welded steel column fabrication that provides vertical support and rigidity in gear shaping machines, enabling precise reciprocating motion of the ram for cutting gear teeth. Essential for maintaining alignment during high-speed gear profiling operations. Falls under HTS 8466.93.30.00 due to its principal suitability for gear-cutting metalworking tools.
Bevel Gear Generator Headstock Casting
Cast iron headstock casting housing the spindle and drive mechanisms in bevel gear generator machines, which cut tapered gear teeth for differential and transmission applications. Provides precise rotational control during continuous indexing gear generation. HTS 8466.93.30.00 applies as a headstock for gear-cutting metalworking machine tools.
Gear Hobber Tailstock Weldment
Steel weldment tailstock assembly supporting the rear end of gear blanks in hobbing machines, allowing adjustable centering for precise hob cutter alignment. Critical for straight and helical gear production. Classified in HTS 8466.93.30.00 as a tailstock for gear-cutting machines.
Cylindrical Gear Cutter Ram Casting
Durable cast ram providing reciprocating drive for cutter tools in gear shaping and slotting machines used for internal/external gear teeth cutting. Ensures high-force, vibration-free motion. HTS 8466.93.30.00 for rams of gear metalworking tools.
Gear Milling Machine Cross Slide
Precision-ground cross slide enabling transverse workpiece movement in gear milling machines for accurate tooth space profiling. Features anti-backlash adjustments for gear accuracy. Under HTS 8466.93.30.00 as cross slide for gear-cutting tools.
Spline Gear Shaper Saddle Casting
Cast saddle supporting table rotation in spline gear shapers for cutting internal/external splines and serrations. Designed for heavy-duty indexing loads. HTS 8466.93.30.00 classification for gear machine saddles.
Helical Gear Hobber Work Arbor Support
Fabricated support bracket steadying work arbors in large helical gear hobbing machines, preventing deflection during deep tooth cutting. Critical for gears >1m diameter. Fits HTS 8466.93.30.00 as work-arbor support for gear tools.
Gear Tester C-Frame Casting
Robust C-frame casting forming the structural backbone of gear rolling testers, which analyze gear tooth contact patterns post-cutting. Provides rigid test bed for quality assurance. Classified under HTS 8466.93.30.00 for gear machine frames.