Pololu Ball Caster with 3/8″ Metal Ball

Pololu Ball Caster with 3/8″ Metal Ball
Pololu item #: 951 966 in stock

Price break Unit price (US$)
1 1.99
10 1.79
50 1.59


backorders allowed

This small ball caster uses a 3/8″ diameter metal ball. The height of the assembled kit ranges from 0.4″ to 0.6″.

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Pololu ball caster with 3/8" metal ball with included hardware.

Overview

This ball caster kit includes a black ABS housing, a 3/8″ diameter metal ball, two spacers (1/16″ and 1/8″ thick), and two #2 screw sets. The total height of the ball caster, 0.4″, can be increased to about 0.6″ 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 0.53″).

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
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
0.91″ 0.24″ 0.25 oz
0.83″ 0.61″ 1.05 oz
1.10″ 0.48″ 0.58 oz
1.10″ 0.70″ 0.36 oz

People often buy this product together with:

Pololu Micro Metal Gearmotor Bracket Extended Pair Pololu Micro Metal Gearmotor Bracket Extended Pair
Pololu 42×19mm Wheel and Encoder Set Pololu 42×19mm Wheel and Encoder Set
Pololu Wheel 42×19mm Pair Pololu Wheel 42×19mm Pair

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Related Categories

Pololu Ball Casters
Nuts and Screws
Pololu Wheels and Tracks
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