Tension Springs
Extension Spring & Tension Spring Manufacturers and Suppliers
Vanel’s extension springs, also known as tension springs, are designed to absorb and store energy while resisting pulling forces. These springs are attached at both ends, pulling components back together when extended. Commonly used in automotive, aerospace, and heavy machinery applications, Vanel’s extension springs provide exceptional reliability and precision.
We offer a wide range of stock and custom extension springs, available in different materials and sizes to meet your specific needs. Whether you require standard loops, hooks, or custom designs, Vanel has the perfect solution. Our springs are designed to meet the highest quality standards for demanding applications.
You can buy extension springs online from our extensive catalog, ensuring quick and convenient delivery. With Vanel, you get premium-quality springs that are ready to meet the needs of your industry, backed by excellent service and fast fulfillment.
We are providing two kinds of Extension Spring as
- English Hooks
- German Hooks
An Extension spring is a spring which offers resistance to extension or tension across its ends. Almost invariably they are made from circular-section wire.
Guaranteed Quality
We follow the strictest quality control in the manufacture of springs.
Note: To order or see the detailed info click on SKU.
| SKU | Wire Diam. (mm) | Ext. Diam. (mm) | Spring Rate (daN/mm) | Free Len. (mm) | Length @max load (mm) | Nr of Coils | Number Of Coils | Fo (daN) | Maximal Force (daN) | Material | Hook Position | Internal Diameter (mm) | Hooks | Weight (g) | Hole (mm) | Tariff | Guid |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| U.318.420.1650.I | 4.2 | 31.8 | 0.438991 | 165 | 299.617826 | 29.5 | --- | 8.237644 | 67.333658 | Stainless Steel | 180 | --- | 2 | 298.940710 | 32.436 | 5K | BACFB47A-9680 |
| U.318.420.1650.IX | 4.2 | 31.8 | 0.435302 | 165 | 300.758654 | 29.75 | --- | 8.237644 | 67.333658 | Stainless Steel | 270 | --- | 2 | 301.787765 | 32.436 | 5K | EA479B7A-6B40 |
| U.350.420.1400.I | 4.2 | 35 | 0.414162 | 140 | 271.917424 | 22.5 | --- | 6.962953 | 61.598137 | Stainless Steel | 180 | --- | 2 | 259.467058 | 35.875 | 5K | 87D0BDF7-8568 |
| U.350.420.1400.IX | 4.2 | 35 | 0.428444 | 140 | 267.520163 | 21.75 | --- | 6.962888 | 61.598137 | Stainless Steel | 270 | --- | 2 | 250.994664 | 35.875 | 5K | 939C7896-92EC |
| U.381.420.4570.A | 4.2 | 38.1 | 0.084322 | 457 | 1126.04828 | 96.5 | --- | 6.599805 | 63.015294 | Music Wire | 180 | --- | 2 | 1140.890386 | 39.0525 | 5K | 9D9ED76C-475C |
| U.381.420.4570.AX | 4.2 | 38.1 | 0.084104 | 457 | 1127.781685 | 96.75 | --- | 6.599871 | 63.015294 | Music Wire | 270 | --- | 2 | 1143.206914 | 39.0525 | 5K | 479A252F-99EA |
| U.381.420.4920.A | 4.2 | 38.1 | 0.077866 | 492 | 1216.514032 | 104.5 | --- | 6.600284 | 63.015294 | Music Wire | 180 | --- | 2 | 1233.551534 | 39.0525 | 5K | 432B3E67-BD96 |
| U.381.420.4920.AX | 4.2 | 38.1 | 0.07768 | 492 | 1218.246962 | 104.75 | --- | 6.60043 | 63.015294 | Music Wire | 270 | --- | 2 | 1237.026327 | 39.0525 | 5K | 1EAB33D7-F99A |
| U.460.420.3550.A | 4.2 | 46 | 0.062453 | 355 | 1126.260218 | 69.5 | --- | 4.508392 | 52.675906 | Music Wire | 180 | --- | 2 | 1021.151819 | 47.15 | 5K | 98C4F17A-A2A1 |