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thanhd
Member

Join Date: Dec 2006
Posts: 8

Power Spring (clock spring) Design

01/08/2008 4:33 PM

To all,

I have a design for a cable retract related to a power spring (clock spring.)

I am looking for the design formulars.

Requirement for the spring: 20 lbs load, 3/8 width, fit-into 1.5 dia aluminum pocket, many turn as much as possible.

Please help
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nick name
Guru

Join Date: Mar 2007
Location: City of Light
Posts: 3943
Good Answers: 183
#1

Re: Power Spring (clock spring) Design

01/08/2008 5:33 PM

Look at clock spring manufacturers they have in the technical sheets such design indications or you better contact one of them and he will make the computation for you.
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Ron
Guru

Join Date: Dec 2005
Location: Wisconsin USA
Posts: 824
Good Answers: 37
#2

Re: Power Spring (clock spring) Design

01/09/2008 11:11 AM

Check out Neg'ator springs at http://www.ametekhunterspring.com/products/constant.cfm. They've been making retractors of this type for a LONG time, and the springs worked well in several applications that I've been involved with in the past.

__________________
 " Ignorance and arrogance have more in common than their last four letters. "
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Anonymous Poster
#3

Re: Power Spring (clock spring) Design

01/24/2008 7:09 PM

Try contacting Sandvik Spring. They specialize in this type of spring and have the most advanced simulation software in the industry.

www.smt.sandvik.com/springs

1-800-551-0298
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thanhd
Member

Join Date: Dec 2006
Posts: 8
#4

Re: Power Spring (clock spring) Design

01/24/2008 7:13 PM

Thank you all for your help.
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