Description
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. 1.1 ″, can be increased to about 1.3 ″ using the included spacers. The three included #2 screws can be used to mount the ball to your chassis (the distance between the screw holes is 0.69 ″).
Notes 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 probably keep it from rolling well.
Comparison of Pololu ball casters
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| Pololu ball casters with plastic and metal balls. Ball diameter from left to right: 1 ″, 3 / 4 ″, 1 / 2 ″, and 3 / 8 ″. |
