These dolly wheel drive plates provide you with a way to create an easy to assemble, low friction, drive system. The idler A type plates are designed to work with 1” – 2” OD aluminum tubing or PVC pipe from your local hardware store. Each dolly wheel drive plate when fully assembled can hold up to 150lbs, utilizes the 1.5″ hub pattern and are sold in pairs of two.
[Actobotics](https://www.sparkfun.com/pages/Actobotics) is a robotics building system based around extruded aluminum channels, gears, precision shafts, and ball bearings. Thanks to the two standardized hole patterns, nearly all Actobotics components can be intuitively connected together. The wide range of components makes building complex electromechanical prototypes or finished projects a reality.
* [SketchUp Part](http://cdn.sparkfun.com/datasheets/Robotics/Actobotics/585534.skp)
* [Product Page](http://www.servocity.com/html/dolly_wheel_idler_plates_a__58.html) (585534)