Pololu Ball Caster with 1/2" Plastic Ball
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Ready to ship today,
Delivery time appr. 1-3 workdays
- Order number: Pololu-952
- Manufacturer product ID: 952
This ball caster kit includes a black ABS housing, a 1/2" diameter plastic 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.
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Comparison of Pololu ball casters
| Pololu ball caster ball diameter | height with no spacers | distance between screw holes | weight with no spacers or screws |
| 0.40" | 0.53" | 0.03 oz | |
| 3/8" metal-ball | 0.40" | 0.53" | 0.14 oz |
| 0.53" | 0.58" | 0.07 oz | |
| 0.53" | 0.58" | 0.32 oz | |
| 3/4" plastic-ball | 0.91" | 0.24" | 0.25 oz |
| 3/4" metal-ball | 0.83" | 0.61" | 1.05 oz |
| 1" plastic-ball | 1.10" | 0.70" | 0.36 oz |
