Extension springs

Extension springs are tightly coiled mechanical springs designed to absorb and store energy by resisting a pulling (tensile) force. Unlike compression springs that are compressed under load, extension springs stretch when a force is applied to their ends and try to return to their original coiled shape when the force is removed.

Key Characteristics: 

• Shape: Typically, cylindrical and closely wound.

• Function: Provide resistance to pulling forces and store energy when extended.
• Ends: Feature hooks, loops, or custom attachments at both ends to connect them to components.
• Material: Usually made from spring steel, stainless steel, or other high-strength alloys, depending on the application.

 

Common Applications:

Extension springs are used in a wide variety of devices and machines where a pulling force is needed, including:

• Automobiles: Trunk and hood support, brake assemblies.
• Appliances: Washing machine doors, garage door mechanisms.
• Industrial Equipment: Levers, actuators, and machinery where counterbalance or return force is required.
• Consumer Products: Trampolines, toys, and exercise equipment.