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Extension springs

An extension spring stores energy when pulled from both ends and returns to its original length once released. It is usually close-wound with initial tension.

Hooks matter as much as the body. Hook type, the angle between hooks and hook length are produced to your drawing.

Wire diameterØ0.10–8 mm

Applications

  • Automotive
  • Agricultural machinery
  • Home appliances
  • Textile machinery
  • Home decoration mechanisms
  • General machinery

Technical notes

Useful information to include on your drawing:

  1. 01Wire diameter (d) and outer diameter (De)
  2. 02Length inside hooks or body length
  3. 03Hook type (e.g. half loop, full loop, extended hook)
  4. 04Angle between hooks and hook opening
  5. 05Initial tension or load at a given length
  6. 06Maximum working length
  7. 07Material and surface finish

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