8461.40.10.20 - For bevel gears

This HTS category, specifically HTS 8461.40.10.20, encompasses gear cutting machines designed for the precise formation of bevel gears. Bevel gears are characterized by their conical shape and are used to transmit power between shafts that intersect at an angle, typically 90 degrees. The machines classified here are specialized for creating the tooth profiles of these angled gears, distinguishing them from machines designed for spur gears, helical gears, or other gear types.

Within the broader classification of "Gear cutting machines," this subcategory focuses exclusively on the machinery dedicated to bevel gear production. The defining characteristic for classification within this node is the machine's capability to generate the specific geometry required for bevel gears. Other gear cutting machines, even if they fall under the broader "Gear cutting machines" heading, would not be classified here if their primary function is not the creation of bevel gear teeth.

As a leaf node, HTS 8461.40.10.20 does not have further subcategories. Therefore, the classification is definitive for machinery that cuts bevel gears. When classifying, consider the machine's intended purpose and the specific type of gear tooth it is designed to produce. If a machine is capable of cutting multiple types of gears, its classification would generally be determined by its primary function or the most specialized function it performs.