The D-system coupler is a specialized device used in various engineering applications to connect two components securely. It is designed to transmit torque and rotational motion between shafts while allowing for some misalignment. This makes it particularly useful in machinery where precise alignment is challenging. Typically made from durable materials, the D-system coupler can handle significant loads and is often found in industrial equipment, automotive systems, and robotics. Its design helps reduce wear and tear on connected parts, enhancing the overall efficiency and lifespan of the machinery it serves.