Original Specification Entex™ Stock Springs

Original Entex™ Specification:

Entex™ Tension Springs

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Tension Springs Diagram

Outside Diameter

Material

Pull - Pull Length

Reset
Stock Code Material Outside Diameter (mm) Wire Diameter (mm) Rate N/mm Pull to Pull Length (mm) Initial Tension N Maximum Extension (mm) More Details
2100 SS 7.95 1.22 0.55 63.5 6.76 73.3 View Product
2101 SS 11.13 1.42 1.21 63.5 13.57 49 View Product
2102 SS 11.13 1.63 2.51 63.5 21.8 33.6 View Product
2103 SS 11.13 1.22 0.42 76.2 6.72 98.43 View Product
2104 SS 11.13 1.42 0.97 76.2 13.3 58.8 View Product
2105 SS 11.13 1.63 1.96 76.2 21.88 43.18 View Product
2106 SS 11.13 1.22 0.34 88.9 6.76 120.73 View Product
2107 SS 11.13 1.42 0.79 88.9 13.34 73.94 View Product
2108 SS 11.13 1.63 1.6 88.9 21.97 54.36 View Product
2109 SS 11.13 1.22 0.29 101.6 6.98 137.92 View Product
2110 SS 11.13 1.42 0.67 101.6 13.12 85.34 View Product
2111 SS 11.13 1.63 1.38 101.6 22.11 61.98 View Product
2112 SS 11.13 1.22 0.25 114.3 6.41 164.34 View Product
2113 SS 11.13 1.42 0.58 114.3 13.26 102.11 View Product
2114 SS 11.13 1.63 1.19 114.3 22.33 70.61 View Product
2115 SS 11.13 1.22 0.22 127 5.69 182.63 View Product
2116 SS 11.13 1.42 0.51 127 12.94 113.54 View Product
2117 SS 11.13 1.63 1.05 127 21.75 79.5 View Product
2118 SS 11.13 1.22 0.2 139.7 5.03 200.91 View Product
2119 SS 11.13 1.42 0.46 139.7 11.61 124.97 View Product
2120 SS 11.13 1.63 0.94 139.7 21.53 92.96 View Product
2121 SS 11.13 1.22 0.18 152.4 4.58 231.9 View Product
2122 SS 11.13 1.42 0.41 152.4 10.5 144.53 View Product
2123 SS 11.13 1.63 1.01 152.4 24.42 101.35 View Product
2124 SS 12.7 1.42 2.24 38.1 10.45 23.37 View Product
2125 SS 12.7 1.63 4.43 38.1 17.75 17.02 View Product
2126 SS 12.7 1.83 8.34 38.1 27.22 12.7 View Product
2127 SS 12.7 1.42 1.23 50.8 10.63 42.16 View Product
2128 SS 12.7 1.63 2.46 50.8 17.35 30.99 View Product
2129 SS 12.7 1.83 4.69 50.8 26.91 22.86 View Product
2130 SS 12.7 1.42 0.85 63.5 10.5 60.2 View Product
2131 SS 12.7 1.63 1.7 63.5 17.21 43.94 View Product
2132 SS 12.7 1.83 3.26 63.5 26.82 32.77 View Product
2133 SS 12.7 1.42 0.65 76.2 10.36 78.23 View Product
2134 SS 12.7 1.63 1.3 76.2 16.99 58.93 View Product
2135 SS 12.7 1.83 2.5 76.2 27.98 43.18 View Product
2136 SS 12.7 1.42 0.52 88.9 10.81 96.27 View Product
2137 SS 12.7 1.63 1.05 88.9 17.79 70.87 View Product
2138 SS 12.7 1.83 2.03 88.9 27.84 51.56 View Product
2139 SS 12.7 1.42 0.44 101.6 10.59 116.08 View Product
2140 SS 12.7 1.63 0.9 101.6 17.79 84.58 View Product
2141 SS 12.7 1.83 1.71 101.6 27.31 61.98 View Product
2142 SS 12.7 1.42 0.38 114.3 9.61 138.94 View Product
2143 SS 12.7 1.63 0.78 114.3 17.84 96.01 View Product
2144 SS 12.7 1.83 1.47 114.3 27.49 71.63 View Product
2145 SS 12.7 1.43 0.33 127 8.45 154.43 View Product
2146 SS 12.7 1.63 0.68 127 17.35 113.54 View Product
2147 SS 12.7 1.83 1.3 127 28.15 84.58 View Product
2148 SS 12.7 1.43 0.3 139.7 7.52 169.93 View Product
2149 SS 12.7 1.63 0.61 139.7 15.44 124.96 View Product

Coil Springs Direct are the UK’s only supplier of Entex™ specification tension springs. Our commitment to quality and precision makes us the trusted choice for many industries seeking reliable solutions – whether you require tension springs for industrial, automotive or bespoke applications, we have you covered.

Why choose our tension springs?

Our tension springs are manufactured to original Entex™ stock specifications that meet the highest industry standards. Our tension springs are made from high quality stainless steel and carbon steel to ensure durability and resilience under various stress conditions. The precision engineering of our tension springs guarantees optimal performance and longevity.

Key features

 

Industries we serve

Coil Springs Direct serves various industries with our premium tension springs, including:

 

Understanding Tension Springs in Dynamic Systems

Tension springs are essential components in systems where controlled resistance and return force are required. They store energy when extended and release it to pull components back into their original position, making them ideal for applications like garage doors, trampolines and mechanical levers. Their reliability and versatility have made them a staple in both light and heavy-duty industries, offering consistent tension performance over time.

What Is a Spring Tensioner and When Is It Used?

A spring tensioner is a device that maintains consistent tension in a system by adjusting or absorbing movement over time. These are often paired with tension springs in conveyor belts, pulleys and industrial machinery where slack or vibration can impact performance. Using a spring tensioner alongside a correctly rated tension spring helps prevent wear, reduces maintenance needs and ensures smoother operation under varying loads.

Using a Tension Spring with Bolts for Custom Assemblies

When space or design requires a more secure setup, a tension spring with bolts can offer added stability and precision. These configurations are commonly used in adjustable assemblies, such as gates, hatches or equipment covers, where a bolted connection allows for a custom-fit solution. Whether you're working with standard or bespoke measurements, integrating bolts can increase anchoring strength without compromising the flexibility tension springs are known for.

 

How to choose the right tension spring

Selecting the right tension spring is crucial for the success of your project. Consider factors such as load requirements, environmental conditions, and application specifications. Our knowledgeable team is ready to assist you in choosing the perfect tension spring for your needs.

Contact Us for Custom Solutions

Have unique requirements? Our team specializes in providing custom tension springs tailored to your specific needs. Contact us today to discuss your project, and let us create the perfect solution for you.

Coil Springs Direct is your reliable partner for high quality tension springs. Explore our extensive catalogue or reach out for custom solutions, or reach out for custom solutions. Trust us for precision engineering, durability and exceptional performance in every tension spring.

 

Frequently Asked Questions

 

What is the purpose of a tension spring?

The purpose of a tension spring is to store energy and create resistance by pulling two components together. It operates under tensile force, extending when pulled and returning to its original shape when the force is released, ensuring a secure and controlled connection.

 

Do tension springs wear out?

Yes, tension springs can wear out over time due to constant stretching and relaxing, which may cause them to lose their elasticity. Factors such as excessive load, fatigue, and exposure to harsh environments can contribute to the deterioration of the spring's performance.

 

What is the difference between coil spring and tension spring?

A coil spring is a general term for any spring made from coiled wire, used to store energy and resist force in various applications, such as compression, tension, or torsion. A tension spring, specifically, is designed to withstand pulling forces and stretch to store energy, typically used in applications where components need to be pulled apart, like in garage doors or trampolines.