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Hello.

What does the torsion spring rating really mean? I have 80 1.66 torsion springs in my iron dog 800. I changed them to little softer ones 80 1.44. 80 is the angle degree of the spring ends, but what does the 1.66 or 1.44 really stand for?

Coil springs are usyally pound/inch, or in europe N/mm. (105 lbs/in coil spring is 18.3 N/mm)

Is there any way to compere these ratings togeather? I mean what kind of coil spring has same amount of spring force, as this 1.44 torsion spring has?
 

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Good luck finding anyone that can explain torsion spring dynamics or theory!
I've been trying for days to find charts or someone who can explain about the
opening angle.
 
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