4010.35.45.00 - Other

This HTS classification, 4010.35.45.00, specifically covers endless synchronous transmission belts or belting made of vulcanized rubber. These belts are designed for efficient power transmission in machinery. The key defining characteristic for this subcategory is that the textile components within the belt construction must predominantly consist of man-made fibers by weight. This distinction is crucial for accurate classification, differentiating them from belts where natural fibers or other man-made fiber combinations might be more prevalent.

While the parent category at this level distinguishes based on the width of the belt (with 4010.35.41.00 covering those exceeding 20 cm), this subcategory, 4010.35.45.00, focuses on the material composition of the reinforcing textile elements. The outside circumference of these belts falls within the range of exceeding 60 cm but not exceeding 150 cm, as established by the preceding classification level.

As this is a terminal (leaf) node in the HTS structure, there are no further subdivisions. Therefore, classification into 4010.35.45.00 hinges directly on meeting the combined criteria of being an endless synchronous transmission belt of vulcanized rubber, within the specified circumference range, and possessing textile components where man-made fibers constitute the majority by weight. Examples would include specialized synchronous belts used in automotive timing systems, industrial automation, or printing machinery, provided they meet the predominant man-made fiber requirement in their textile reinforcement.