These wheels include a flexible rubber tread that is able to conform to a surface. The softer 30A green rubber will flatten to a surface or bend around an object relatively easily whereas the harder 60A black rubber provides a noticeable amount of resistance with the Orange 40A and Blue 50A rubbers falling in between. These wheels can be used as drive wheels for light robots or as conveyor / intake wheels to handle objects.
Please note, these wheels are not intended for high speed use. The new hubs have a square and a round portion matching the molded center of the new wheels. The center round portion of the wheels is machined after molding to provide a close tolerance fit to the round portion of the hub eliminating the wobble or slop found in many molded wheels. The square portion provides excellent torque transfer from the hub to the wheel and provides the room for two set screws placed 90 degrees apart to secure the hub to a shaft.
Installation is quick and easy. Simply slide the hub onto the shaft and secure it in place with the set screws. Push the wheel onto the hub and lock it in place with the snap ring. The hub does not extend beyond the wheel so multiple wheels can be mounted tight against each other. The hubs and wheels can be removed and reused or reconfigured at any time as needed.Specifications:
- Outside Diameter: 4.0 in
- Width: 0.8 in
- Mount: T81 Hub
- Weight*: 3.2 oz
- Color: Black and Black
- Tread Durometer: 60 Shore A