flatform springs compression springs extension springs torsion springs wireform springs
torsion springs
You can also download a PDF version of the Compression Spring Specification Form below:

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Torsion Springs
compression springs
compression springs
Torsion Springs — Specification Form

The following form will send us your engineering information. Please try and be as complete as possible. If you have any questions, please feel free to call us at 978.658.7396 or visit our contact page.

Contact Information:
required Your Name    (first and last)
required Address
required City
required State (two characters only)
required Zip (zip + 4)
required Country
required Phone   e.g. 978-658-7396
required Fax   e.g. 978-658-7396
required Email Address

Design Information:
torsion spring specifications
1. to work over in. (mm) diameter shaft
2. outside diameter  
a. in. (mm) max. or
b. in. (mm) max. or ± in. (mm)
3. inside diameter  
a. in. (mm) max. or
b. in. (mm) max. or ± in. (mm)
4. torque lb.-in. (N-mm) ± lb.-in. (N-mm) at °
  lb.-in. (N-mm) ± lb.-in. (N-mm) at °
5. length of space available in. (mm)
6. maximum wound position turns or ° from free position
7. length of moment arm (R) in. (mm)
8. direction of helix (indicate L, R or OPT)
6. type of ends (see illustrations below)
  torsion spring ends

Advisory Data
1. wire diameter in. (mm)
2. mean coil diameter in. (mm)
3. no. of coils
4. rate lb.-in. (N-mm) per turn (360°)
5. ØF = ° free angle reference

Special Information
1. type of material
2. finish
3. frequency of rotation cycles/sec. and working range
  Ø = ° to Ø = ° deflection
4. operating temperature ° F (°C)
6. end use or application
7. other comments
required indicates required information
     
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