Looking for a powerful Gear motor ? The Firgelli Gear motors have a high torque DC Motor output that run on 12-24vdc. Planetary style gear head for smooth noise free usage for long life, and great reliability. Ideal for medium to large robot projects.
The shaft has a 6mm dia and works great with our hubs or pulleys Links below. The flat on the Shaft is what you will tighten the set screw to in order to prevent the pulley or hub from rotating
https://www.firgelliauto.com/products/micro-motor-pulley
https://www.firgelliauto.com/search?q=hub
