These custom turned aluminum wheels made for our small robot chassis like Surveyor (or any 3mm shaft). They are great for the Sanyo NA style motors used on Surveyor as well as 3mm shaft Copal and BaneBots motors . The wheels come complete with a super grippy all terrain rubber tread, and a stainless set screw for fixing it to the shaft (accessed under the tread with a 1/16" hex wrench). While these will work with round shafts, they get the best purchase on a shaft with some sort of a flat on it. They are machined from 6061 aluminum and anodized black.
Outside Diameter: 1.19" with tire
Width: .375"
Weight per wheel with tire and set screw: .374oz or 10.6g
$24.00 
