Gardner Spring, Inc. Datasheets for Extension Springs

Helically wound to oppose resistant forces, extension springs have consistent mechanical energy to return to its no-load, compressed position. The ends of the spring are attached to components intended to move apart, with the extension spring providing a reliable return force.


Extension Springs: Learn more

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Product Name Notes
Cot springs offer high loads in static applications with small deflections. Ends are easily installable machine hooks. Material is MBHD (Medium Basic Hard Drawn) Carbon Steel – finish is zinc...
Double Looped Extension Double Looped Extension Springs offer additional safety for applications where the part’s ends must fasten securely. Available in a range of sizes in MBHD Carbon Steel. Finish...
Drawbar Extension Springs are ideal for tensioning applications such as fences or gates, and also function as shock absorbers in intermittent load applications or for marine vessel mooring. Drawbars allow...
Finish: Galv
Gardner Heavy Duty Extension Springs offer large loads in low cycling applications. Available in MBHD (Zinc Plated) Carbon Steel and 301 Stainless Steel.
Gardner Screen Door Springs may be used as replacement springs for interior or exterior screen doors and other lightweight doors. These parts are also used to assist with the closing...
High quality general purpose extension springs come in a wide range of lengths and load capacities ideally suited for OEM applications, equipment maintenance, as well as numerous industrial projects. Offered...
Ultra Precision Extension Springs are made to strict tolerances from high-grade materials. Tight quality control is maintained throughout the manufacturing process. Ends are full twist loops. Loop OD is the...

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