Tapered Roller Bearings, Including Cone and Tapered Roller Assemblies

The US schedule treats matched cup-and-cone sets (imported together as a complete assembly) differently from separately imported cone assemblies, with distinct 10-digit lines for each configuration. Beyond classification, this distinction can affect antidumping duty scope determinations, since some orders are written to cover complete assemblies, cups, or cones independently. Importers should confirm with their supplier whether components are shipped as matched sets and document that status on the commercial invoice.

The US schedule uses 'less than' and 'greater than or equal to' language at the 102 mm and 203 mm breakpoints, so a bearing with a cup diameter of exactly 102 mm falls into the 'at or above 102 mm' tier. Importers should obtain the manufacturer's certified dimensional drawing to confirm the exact cup diameter and retain it as entry documentation. When measurements are borderline, a CBP binding ruling provides the most defensible classification position.