Stretch spring

stretch spring, also known as an extension spring, is a type of coiled spring designed to resist stretching forces. Here are some key points about stretch or extension springs:

Function: Extension springs provide resistance to pulling or tensile forces, storing energy when extended and releasing it when the force is removed, returning to their original length.

Structure: Extension springs typically consist of tightly wound coils with hooks or loops at the ends for attachment points.

Applications: Extension springs are commonly used in various applications such as garage doors, trampolines, farm machinery, industrial equipment, and more where pulling or stretching forces need to be counteracted.

Materials: Extension springs can be made from materials like music wire, stainless steel, or other alloys based on the application's requirements for strength, elasticity, and corrosion resistance.

Design Considerations: Factors such as spring rate, maximum load capacity, initial tension, elongation limits, and end configurations (e.g., full loop, hook, or threaded inserts) are essential considerations in selecting extension springs.

Safety Precautions: Care should be taken when installing or handling extension springs to prevent injury from unexpected release of stored energy during installation or removal.

Extension springs are versatile components widely used in mechanical systems that require controlled extension and retraction forces. For detailed information on selecting, designing, or utilizing extension springs for specific applications, consulting with spring manufacturers or engineers specializing in spring technology is advisable.