Replacement 3pi Ball Caster with 1/2" Plastic Ball

			Pololu item #: 957 49 in stock Price break Unit price (US$) 1 2.75 10 2.48 50 2.20 Quantity: backorders allowed

This ball caster can be used as a replacement 3pi robot part or as a general-purpose ball caster. When mounted through a hole in a chassis that uses our micro metal gearmotors and our 32×7mm wheels, as on the 3pi, this ball caster is just the right height to keep the chassis level.

Compare all products in Pololu Ball Casters or 3pi Robot and Accessories.

3pi ball caster with 1/2" plastic ball, top view with US quarter for size reference.

Dimension diagram 3pi ball caster with 1/4" ball (bottom view).

Dimension diagram 3pi ball caster with 1/4" ball (side view).