Applying Force: When a force is applied to the ends of the drawbar spring, the helical coil compresses or extends, depending on the design and application.

Controlled Movement: The central rod ensures that the spring maintains its alignment and the force is applied evenly along its length. This prevents the spring from buckling or bending out of shape.

Restoring Force: Once the applied force is removed, the spring returns to its original shape, providing a controlled restoring force that can be used to return mechanisms to their starting positions.

Helical Coil: The main body of the spring, typically made of high-strength steel, wound in a helical shape.

Central Rod/Bar: A rod that runs through the center of the helical coil, usually with hooks or eyelets at both ends. This rod helps in controlling the movement and maintaining alignment.

End Fittings: Hooks, loops, or other fittings at the ends of the central rod to attach the spring to the mechanisms it is designed to work with.

Precision and Control: The central rod ensures precise linear movement and prevents the spring from bending or twisting, providing reliable performance.

Durability: Made from high-strength materials, drawbar springs are designed to withstand repeated use and high loads without losing their shape or effectiveness.

Versatility: They can be used in various applications where controlled linear tension or compression is required, making them a versatile component in many mechanical systems.