Internal gears usually mean a gear ring, with teeth that are cut onto the internal surface of a cylinder, and mesh with a spur gear. They are often used to create a planetary gear or gear coupling, and often used in grinding mills.
JST provides a variety of custom precision internal gears. Simply provide a blueprint or sample, and we’ll produce them using whatever material you require. Backed by 10 years of experience, we are a trusted name for the customization for precision internal gears.