An industrial overhead door has a chain and sprocket system designed to reduce the force needed by an operator to open and close the door. The system consists of two individual systems that are connected through a live axle shaft. To operate the door, the operator pulls a continuous loop of chain over a fixed 22 tooth sprocket that is attached to a live axle shaft. The second 22 tooth sprocket is attached to a drum that drives the door. What is the overall system ratio?
