Gyros Make 'Worm Gear Box' A worm gearbox , Size - 17 Inch is a type of gear system that uses a worm (a screw-like component) to transmit power between two non-parallel and non-intersecting shafts. It provides high gear ratios in a compact design, making it suitable for applications where space is limited. Worm gearboxes are known for their smooth operation, high torque transmission, and self-locking feature, which prevents back-driving. They're commonly used in conveyor systems, lifts, and other machinery requiring precise control and high torque.