Thank you all for your reply's and I’m sorry for those of you who’s time I wasted as this was not my intent.
For what it's worth, I posed this question because my experience does not make me comfortable with such a design and I was looking for some alternative options...hence "What other...
Using a spring calculator, I determined that the stress on my spring will be 140%. I only need the spring to cycle 15K times and from what I understand, most spring calculations are for 100K.
I'm using ASTM A228 wire that is Ø1.7mm. The spring is being used like a torsion spring to wind up...
