MecanumWheel

4-inch 7-roller 45-degree Mecanum Wheel. Roller retention (and axles) are standard M3 x 30 socket head cap screws with standard M3 washers to prevent plastic-to-plastic rotational contact. Hub designed for 5mm shaft. Nema 17 stepper motor fits inside one of the wheel 'dishes' and so allows wheel to be close coupled to motor.