How does power couple in a reverse coupler?

In a reverse coupler, power is transferred from a driving element to a driven element, but the direction of rotation is opposite to what occurs in a standard coupler. This means that when the driving element rotates in one direction, the driven element rotates in the opposite direction. The reverse coupler is designed to maintain torque and ensure efficient power transmission despite the reversal in direction, making it useful in applications requiring synchronized but opposing movements.