The Pololu Replacement 3pi Ball Caster w/ 1/2″ Plastic Ball is a versatile component originally designed as a replacement part for the 3pi robot. It is also compatible with the newer 3pi+ robot, featuring an integrated housing for the ball within the chassis. This ball caster serves as a general-purpose solution, perfectly aligning with chassis configurations that utilize micro metal gearmotors and 32×7mm wheels, as seen in the 3pi robot. The ball caster fits into a 0.6-inch diameter hole with a side flattened by 0.03 inches. Note that this product does not include mounting holes or hardware, making it essential for users to consider their mounting requirements when integrating it into their projects.
