Pololu Ball Caster with 3/4″ Plastic Ball

This ball caster kit includes a black ABS housing, a 3/4″ diameter plastic ball, three dowel pin rollers, two spacers (1/16″ and 1/8″ thick), and two 7/16″ #2 screws and nuts. The total height of the ball caster, 0.88″, can be increased to about 1.1″ using the included spacers. The two included #2 screws can be used to mount the ball caster to your chassis, or you can use your own #2 or M2 screws if your application requires a different length.

Note that our ball casters are designed for small robots; they are not intended to bear more than a few pounds. With more weight than this, friction between the ball and the housing will generally keep it from rolling well.

Dimensions

General specifications

Notes: Without screws or spacers.