Abstract: A valve stem installation system includes a robotic arm for moving a valve stem insertion device around the lip of wheel. The system also includes a pair of valve stem aperture sensors positioned on the robotic arm adjacent the valve stem insertion device and moveable around the lip of the wheel. The sensors can be positioned on opposite sides of the valve stem insertion device. When the first sensor locates the valve stem aperture, movement of the robotic can be slowed. When the second sensor locates the valve stem aperture, movement of the robotic arm can be stopped. The conveyor unit can include an identification station to sense the configuration of the wheel. A controller can select the appropriate valve stem to insert in the valve stem aperture in response to the sensed configuration of the wheel.

Abstract: A bell assembly for inflating a tubeless tire on a wheel includes a first bell and a second bell slidably disposed within the first bell. The second bell includes a smaller diameter than the first bell. A shaft extends upwardly from the second bell in one of a relative to the first bell. A locking member is engagable with the shaft and is movable between a first locking position and a second locking position. The locking member secures the second bell in the first bell position when the locking member is disposed in the first locking position. The locking member secures the second bell in the second bell position when the locking member is disposed in the second locking position.