This is a single axle with a hub that mounts to our 6 inch tires. The end opposite the hub is bored to fit an 8mm shaft. It is intended to be direct driven by our IG42 motors. The hub is welded to a steel 1/2" diameter shaft.
This is a set containing a 4 Inch Omni Wheel and a 6mm Nexus Robot Aluminum Wheel Hub. It is intended for use with our Triangular Omni Wheel Robot. The aluminum hub couples directly to the 6mm IG32 motor shaft.