This is a robot drive wheel we had made specifically for us. It does not have a bearing. It is 6 inches in diameter and 2 inches wide. It's a solid foam core with rubber treads and outer layer. The steel rim is painted black with a 4 bolt pattern so you can easily mount it to a flanged hub.
This prebuilt 4WD wheeled robot platform is equipped with 32mm motors, a motor controller, and Spektrum remote control. This prebuilt is a customized version of TP-132-032.
This is a prebuilt custom robot ready to ship. It uses our popular LT2-F chassis with 8ft Zippermast to make surveillance possible from 8 foot high.