Presence of Worm Gearbox can be noticed in various tuning instruments, lifts, elevators etc. It functioning is some what similar to spur gear, where worm or screw gets meshed with a wheel or gear, which enables the user to determines its rotational speed. Likewise, other types of gear boxes, this one also ensures the transmission of higher torque. In various instruments found at home to inside heavy duty machinery offered Worm Gearbox can be seen. It comes in different types and technical specifications depending upon the type of the device it has been installed in. Due its non-reversible properties and compact sizes it can be used in common elevators, where this worm gear acts an a secondary braking system.