This is a set of 4 wheels. The wheels are CNC cut from 1" thick Rubber and sandwiched between 1/2" UHMW that are chamfered. Each wheel has two sealed ball bearings in them. Each wheel has a #35 30 tooth chain aluminum chain sprocket mounted to it. The wheel shafts are 3/4" 6061 Aluminum steped down to 5/8" for the included sealed ball bearings, then steped down again to 1/2" with a flat spot milled onto it for fastening to the tensioners. The wheels come unassembled, you need to bolt them together per the HD2 manual. The wheels weigh 4.4lbs.
To purchase both the track and wheels see HD2 Pair of Molded Spliceless Tracks and Wheel Set - Generation 4 (TD-123-002)
This is a pair of All Terrain reinforced 4 inch wide tracks for the HD2 Treaded Robot. These are the generation 4 design. They have 4 ply mesh reinforcement, molded rubber with no splice. Different lengths can be ordered.
This is a roller used in the HD2. It works with our generation 4 tracks. It includes the 3/8" shaft, bearings, lock collars, and the roller assembly itself.
Slightly Used Solid-State ToF Infrared LiDAR CE30-A with custom aluminum mounting bracket and cables.
SparkFun's minimal design approach to Arduino. This is a 5V Arduino running the 16MHz bootloader.