Nexus Robot 127mm Double Aluminum Omni Wheel w/ Bearing Rollers

The 127mm Double Aluminum Omni Wheel w/ Bearing Rollers wheels are unique as they are able to roll freely in two directions. The Omni-direction wheels allow a robot to convert from a non-holonomic to a holonomic robot. A non-holonomic robot that uses normal wheels has only 2 out of 3 controllable degrees-of-freedom - moving forward/backwards and rotation. Not being able to move side ways makes a robot slower and less efficient in reaching its given goal.