Worm and Wheel Gear Diameter Shafts Pin Nylon Bore Tooth Brass Stainless Steel for Speed Motor Reductions Transmission Parts High Quantity Aluminum Worm Gears

The mating worm gear mounts on a specialized Steel 1/4" D-Bore Barrel Hub for Worm Gear to create a reliable junction between the gear and the shaft it's turning. The worm and the worm gear are designed so that you can run them 0.75" apart from one another; the same spacing you'll find on Ever-power and other components within the build system. Aside from the massive reduction in speed and the increase in torque, these worm gears will lock in place when at rest so you don't have to worry about an outside force backdriving the mechanism driving them.