The 4 inch (100mm) aluminum Mecanum wheel set (2x Left, 2x Right) allows your robot to easily move forward and backward (reverse), laterally, diagonally, or spin in a circle. Each roller has a plastic sleeve bearing. Nexus part# 14162.
This is a larger IG32 gear motor robot that utilizes three omni-wheels to vector it in any direction. By changing the speeds and directions of the motors the robot can drive in any direction without needing to turn.