Constant Force Springs

constant force spring

Constant force springs get their name because they are a spring with which the force of motion is at constant exertion. The tightly wound roll works in a linear movement and does not obey Hooke's law (F=kX) but this allows it to constantly produce force throughout its deflection. Constant force springs have practically no limit on their extension speed or acceleration of use because as the spring is unrolled, the restoring force resides in the portion of the ribbon nearest the roll. Constant force springs can be fitted in a number of ways and extended partly or completely, giving a wide range of uses through the lack of limitations on extension speed and acceleration.

Our constant force springs are used in many different industries including; automotive, aerospace, defence, medical device manufacturing, retail manufacturers, white goods and more. We understand that each industry requires springs of an exceptional standard to ensure machinery and products of the finest possible quality. There are many different types of constant force springs and they are commonly manufactured from a steel strip. They can be made using the carbon steel that has been texture rolled or stainless steel. Constant force springs can be used in a number of different applications including:

  • Seat belts
  • Cable retractors
  • Brush springs
  • Timers
  • And many more

Here at European Springs we engineer constant force springs of the highest possible quality and we are dedicated to providing our customers with the best service possible. If you require any more information in regards to any of the springs or pressing products from our catalogue, or bespoke items, then please contact our knowledgeable team who will be able to provide you with helpful advice. 

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The Complete Spring Supplier
Head Office: European Springs & Pressings LTD; London Phone: +44 (0) 208 663 1800 | Fax: +44 (0) 208 663 1900 | E-mail:
Address: Chaffinch Business Park, Croydon Road, Beckenham, GB-KENT BR3 4DW, Great Britain
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