Pololu 3/8" Plastic Ball Caster
23130
This Pololu caster uses a 3/8" plastic ball to give a nice, low-friction ride at a height of 0.4" to 0.6"
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It seems the lucky goons at Pololu have had a series of low-friction caster balls made from a 3D printer. This means it's got some pretty nice design points, and with a 3/8" plastic ball, it offers a nice, low-friction ride at a height of 0.4" to 0.6"
The kit features black ABS housing, a 3/8" diameter plastic roller, and two spacers (1/16" & 1/8" thick), and a pair of #2 nut/bolt sets.
And weighing only 1 gram, it's light!
|
Pololu ball caster
ball diameter |
Height with no
spacers |
Distance
between screw holes |
Weight
(no spacers or screws) |
|
3/8" Plastic-ball
|
10.2mm (0.40") | 13.6mm (0.53") | 1g (0.03oz) |
| 10.2mm (0.40") | 13.6mm (0.53") | 4 (0.14oz) | |
| 13.6mm (0.53") | 14.7mm (0.58") | 2g (0.07oz) | |
| 13.6mm (0.53") | 14.7mm (0.58") | 9g (0.32oz) | |
| 23.1mm (0.91") | 6.1mm (0.24") | 7g (0.25oz) | |
| 21.1mm (0.83") | 15.5mm (0.61") | 30g (1.05oz) | |
| 27.9mm (1.10") | 17.8mm (0.70") | 10g (0.36oz) |
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