If you aren't familiar with Mecanum wheels, this 48mm diameter Mecanum wheel might look like a regular, run-of-the-mill wheel with mini hair curlers on it. In reality, it is a very clever omnidirectional wheel with rollers supported by ball bearings, which allows a four-wheeled robot to move in any direction. It has nine rubber beads around the perimeter that allow it to grip the ground when moving laterally.
These wheels have a small insert that allows them to be used with LEGO-compatible cross-axle motors or inexpensive TT motors. They simply snap into place.
This is the RIGHT wheel; you will recognize it because it has an R engraved on the hub. You will need at least 2 left wheels and 2 right wheels to use all movement combinations.
