Heavy duty robot wheel with traction lug Tiller tread. It does not have a bearing. Size: 3.5-4. It's 10.5 inches in diameter, 3.5" inches wide. Its Pneumatic with a 4 bolt pattern so you can easily mount it to a flanged hub.
This is a robot drive wheel we had made specifically for us. It does not have a bearing. Its 6 inches in diameter. 1.9" inches wide. Its a rubber pneumatic tube tire. The rim has a 4 bolt pattern so you can easily mount it to a flanged hub.
This is an SST tracked robot platform equipped with 32-millimeter motors, a motor controller and a tethered remote. It has a pan/tilt camera with high power LED lights. This is a rugged treaded robot platform.