8708.99.58.00 - Double flanged wheel hub units incorporating ball bearings

This HTS subcategory, 8708.99.58.00, specifically covers double flanged wheel hub units that incorporate ball bearings. These are essential components for vehicle wheel assemblies, providing a secure mounting point for the wheel and facilitating smooth rotation. The defining characteristic of this classification is the combination of a double flange design, which typically allows for attachment to both the wheel and the suspension system, and the integrated ball bearing mechanism for reduced friction.

It is crucial to distinguish this category from its sibling, 8708.99.55.00, which pertains to vibration control goods containing rubber. While both fall under "Other parts and accessories" for motor vehicles, this subcategory focuses on the mechanical function and construction of wheel hub units, whereas the sibling category addresses components primarily designed for dampening vibrations. Therefore, the presence of integrated ball bearings and the double flanged wheel hub design are key differentiators for classification under 8708.99.58.00.

As a leaf node, this classification does not have further subdivisions. Its specificity means that any article meeting the description of a double flanged wheel hub unit incorporating ball bearings, and not fitting into more granular categories within heading 8708, would be classified here. When classifying, focus on the physical attributes of the unit, confirming the presence of both the double flange structure and the integrated ball bearings, ensuring it serves as a functional wheel hub component for vehicles.