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POLOLU

Pololu Ball Caster with 1/2" Metal Ball

Pololu Ball Caster with 1/2" Metal Ball

Pololu #953

Rs. 349.00
Rs. 349.00
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Overview

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 caster
ball diameter

height with
no spacers

distance
between
screw holes

weight with
no spacers
or screws

3/8" plastic-ball

0.40"

0.53"

0.03 oz

3/8" metal-ball

0.40"

0.53"

0.14 oz

1/2" plastic-ball

0.53"

0.58"

0.07 oz

1/2" metal-ball

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
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