8483.30.80 - Other

HTS code 8483.30.80 encompasses "Other" bearing housings and plain shaft bearings that do not fit into the more specific sibling category of flange, take-up, cartridge, and hanger units (8483.30.40). This designation includes a broad range of components designed to support and facilitate the rotation of shafts. Bearing housings are the external casings or mountings that contain bearings, providing protection and a means of attachment to machinery. Plain shaft bearings, often referred to as sleeve bearings or journal bearings, utilize sliding friction rather than rolling elements to support rotating shafts.

The key distinction from 8483.30.40 lies in the specific form and function of the bearing units. While sibling categories are dedicated to pre-assembled, often standardized units designed for easy mounting in specific configurations, this "Other" category captures a wider variety of individual housings and plain bearings, or those not meeting the precise definitions of the sibling items. Examples might include custom-machined housings, simple bushings, or unmounted bearing races for plain bearings.

This category serves as a residual classification for bearing housings and plain shaft bearings, covering diverse types not otherwise specified. It is further divided to distinguish between the housing itself and the plain shaft bearing element, providing a more granular classification for distinct components within this broad heading. These subcategories allow for precise identification of either the protective casing or the bearing material providing the low-friction interface for rotating shafts.