8483.30.40.80 - Other

This HTS subheading, 8483.30.40.80, covers "Other" types of bearing housings and plain shaft bearings that fall within the broader category of flange, take-up, cartridge, and hanger units. These units are designed to house bearings, which reduce friction in rotating or sliding mechanical components, and are typically designed for easy mounting and alignment in various machinery. The "Other" designation indicates that these are units not specifically covered by other subheadings within the flange, take-up, cartridge, and hanger classifications.

This category is distinguished from its sibling, 8483.30.40.40 ("Ball or roller bearing type"), by the nature of the bearing it is designed to house. While sibling categories are specifically for units designed to hold rolling-element bearings (ball or roller bearings), this "Other" category is for bearing housings intended for plain shaft bearings. Plain shaft bearings, also known as sleeve bearings or journal bearings, rely on sliding friction, often with a lubricating film, rather than rolling elements.

As this is a leaf node within the HTS structure, there are no further subcategories to introduce. Classification within this specific subheading hinges on the determination that the unit is a flange, take-up, cartridge, or hanger type housing, that it is intended for a plain shaft bearing (as opposed to a ball or roller bearing), and that it does not fit into any more specific description elsewhere in the tariff schedule. Examples might include housings for specialized plain bearings used in heavy-duty industrial applications or custom-designed units where the bearing interface is a simple shaft-in-housing configuration.