This light ball caster uses a 3/4" diameter metal ball. The height of the assembled kit ranges from 0.8" to 1.1".
Overview
This ball caster kit includes a black ABS housing, a 3/4" diameter metal ball, two spacers (1/16" and 1/8" thick), and two #2 screw sets. The total height of the ball caster, 0.83", can be increased to about 1" 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 0.61").
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 caster
ball diameter |
height with
no spacers |
distance
between
screw holes |
weight with
no spacers
or screws |
|
|
0.40" |
0.53" |
0.03 oz |
|
|
0.40" |
0.53" |
0.14 oz |
|
|
0.53" |
0.58" |
0.07 oz |
|
|
0.53" |
0.58" |
0.32 oz |
|
|
0.91" |
0.24" |
0.25 oz |
|
3/4" metal-ball |
0.83" |
0.61" |
1.05 oz |
|
|
1.10" |
0.70" |
0.36 oz |
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Dimensions
General specifications
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FAQs
How much weight can Pololu ball caster support?
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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