Pololu Ball Caster with 1/2″ Metal Ball
This ball caster uses a 1/2″ diameter metal ball. The height of the assembled kit ranges from 0.5″ to 0.8″.
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Pololu ball caster with 1/2" metal ball with included hardware.
This ball caster kit includes a black ABS housing, a 1/2″ diameter metal ball, two spacers (1/16″ and 1/8″ thick), and two #2 screw sets. The total height of the ball caster, 0.53″, can be increased to about 0.7″ using the included spacers. The two included #2 screws can be used to mount the ball caster to your chassis (the distance between the screw holes is 0.58″).
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 probably keep it from rolling well.
Comparison of Pololu ball casters
Pololu ball casters with plastic and metal balls. Ball diameter from left to right: 1″, 3/4″, 1/2″, and 3/8″.
Pololu ball caster
1/2″ metal ball
People often buy this product together with:
|Pololu Ball Caster with 3/8″ Metal Ball|
|Pololu Ball Caster with 3/4″ Metal Ball|
|Pololu Ball Caster with 1/2″ Plastic Ball|