Torsion Spring Calculation

Torsion Spring Calculation
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Posted by: titan graphics ^®

10/21/2005, 14:38:26

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I am trying to calculate what size torsion spring I need to move a 40 lb load. If you look at the following link you can see the application.
https://mysite.verizon.net/tabarr/images/springquote.jpg
I have used the Eng Edge calculator but am not sure if I used it correctly. I have 35 degrees to push using a 180 degree torsion spring. The cutting head weighs 40 lb. The moment is 2". This gives me a spring constant of 2.2857 (lb-in/deg) "K".
Is this "K" value equal to the "torque in/lb" found in a spring catalogue? If not, how do I equate this "K" value to that torque rating.

Thanks in advance,

Todd

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