8708.99.81.15 - Double flanged wheel hub units not incorporating ball bearings

This HTS classification, 8708.99.81.15, specifically covers double-flanged wheel hub units that are designed for use in motor vehicles and do not incorporate ball bearings. These components are essential for mounting wheels to the axle and are characterized by their two distinct flange surfaces, which serve as mounting points. Their function is primarily mechanical, facilitating the connection between the wheel assembly and the vehicle's drivetrain or suspension system.

Distinguishing this category from its siblings is crucial for accurate classification. Unlike brake hoses of plastics (8708.99.81.05), slide-in campers (8708.99.81.30), or cable traction devices (8708.99.81.60), these are integral structural components of the wheel assembly itself. While 8708.99.81.80 encompasses "Other" parts and accessories, the specificity of "double flanged wheel hub units not incorporating ball bearings" warrants a dedicated classification, highlighting their unique physical attributes and purpose.

As this is a leaf node within the HTS, there are no further subcategories. Therefore, classification within 8708.99.81.15 relies on the precise identification of a double-flanged wheel hub unit whose design explicitly excludes the inclusion of ball bearings. The absence of integrated ball bearings is a defining characteristic that separates these units from other hub assemblies that may include such features.