A plastic wheel with an O-ring tyre designed to work with an ActivityBot wheel encoder module providing odometry for a small mobile robot. The narrow profile makes this wheel ideal for applications requiring precise steering.

Encoder wheel spokes work with the ActivityBot wheel encoder module (RS 843-0878)
Produces 32 encoder output pulses/revolution
Fits most servo motor hubs (excluding Hitec)
Tyre retained by tabs on the wheel rim
Wheel diameter: 66mm (including tyre)
Tyre: 1/8in size 228 NBR O-ring

Boe-Bot, ActivityBot and Shield Robot With Arduino Kits include 2 x Encoder Wheels and tyres as standard.

Parallax offer an extensive range of sensor, communication and interface modules for the experimenter working on robotic systems. Most are supplied with extensive documentation making them ideal for use in education. Further information and tutorials are available from the Parallax website: http://learn.parallax.com/