Pololu ball roller kit with 9,5mm plastic ball incl. 2x spacers & 2x screws and nuts, for small robots

>Overview

>This Ball Transfer Unit Kit includes a black ABS chassis, a 3/8″ diameter plastic ball, two spacers (1/16″ and 1/8″ thick) and two 7/16″ #2 screws and nuts. The total height of the ball transfer unit, 0.4″, can be increased to approximately 0.6″ using the spacers supplied. The two #2 screws supplied can be used to attach the Ball Transfer Unit to your chassis, or you can use your own #2 or M2 screws if your application requires a different length. Note that our Ball Transfer Units are designed for small robots; they are not designed to carry more than a few pounds. With more weight than this, the friction between the ball and the walker generally prevents it from rolling well.