Pololu Ball Caster with 3/4" Plastic Ball

This light ball caster uses a 3/4″ diameter plastic ball. The height of the assembled kit ranges from 1.1″ to 1.4″.

This ball caster kit includes a black ABS housing, a 1″ diameter plastic ball, three dowel pin rollers, two spacers (1/16″ and 1/8″ thick), and three #2 screw sets. The total height of the ball caster, 1.1″, can be increased to about 1.4″ using the included spacers. The three included #2 screws can be used to mount the ball caster to your chassis (the distance between the screw holes is 0.69″).