Pololu Ball Caster (12 mm Metal Ball)

Description:

This product consists of four small ball and a diameter of 12mm large steel ball, all the steel ball with 304 stainless steel ball, to ensure long-term use will not rust, the outer ring material is plastic, suitable for smart car chassis Support and desktop miniature robots above.

Specs: 

The width of the universal wheel is 22mm

Height 15mm, the installation screw holes spacing is16.5mm.

package:

1x Pololu Ball Caster