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What Is A Tension Spring?
A tension spring, also known as an extension spring, is a mechanical spring designed to store energy by stretching or extending when a force is applied to it. Tension springs are commonly used in various applications due to their unique properties and functionality. They absorb and store energy by resisting a pulling force, and typically feature hooks, loops, or end coils for attachment purposes. They are used in garage doors, trampolines, electric guitars, seat belts, agricultural machinery and more.
How does a tension spring work?
When a force is applied to a tension spring, it extends or stretches, absorbing and storing the energy within the spring. This stored energy can be released or utilized when the force is removed or reduced. Tension springs work based on Hooke’s Law, which states that the force required to extend or compress a spring is directly proportional to the distance it is stretched or compressed.
Common Tension Spring Materials
The materials used for tension springs vary based on their application requirements, including environmental conditions and load demands. Commonly, high-carbon steel, stainless steel, and alloy steels are utilised for their robustness and corrosion resistance. For specific needs, materials such as phosphor bronze, beryllium copper, and even exotic alloys can be selected to enhance durability, conductivity, or non-magnetic properties.
Types of Tension Springs
There are various types of tension springs with different end types. The simplest forms come with machine hooks, extended hooks, or swivel hooks, while more complex variations include reduced ends, threaded inserts, or loops. custom Springs are also developed for unique applications and are used in various industries such as renewables，transport，construction，motorsport, rail，agriculture, quarry and mining, robtics and more.
Common Applications of Tension Springs
Tension springs are integral components across various sectors, including automotive, for retracting seat belts and operating garage doors; electronics, in devices like keyboards and appliances; and construction, where they are used in power tools, heavy plant machinery and even architectural icons such as the 02 arena. They are also used in motorsport, for throttle linkage systems and suspension systems as well as in mining for vibrating screens and feeders, which separate different-sized materials. As you can see, tension springs are used in a variety of applications from small household items to larger industrial machinery.
SNMHardware provides many types of Tension springs and also undertakes the manufacturing of customizedTension springs.
