Initial angles of the torsion coil springs

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keyword: SUS304; allowablestress; tempering; springmaterial; SWP-B; tolerance; torsioncoilsprings; initialangles

Question Nori 2004/4/5(Mon) 19:53

Regarding the setting of the initial angles of the torsion coil springs, what tolerance do you generally expect? I asked this question because I want to set the variation of the initial angle to be within 80% of the allowable stress of the material. The material is SUS304 SWP-B, and I am considering performing tempering.

Answer Tokai Spring 2004/4/7(Wed) 15:22

Normally, the setting of the initial angle of torsion springs considered to be about ± 10° to 15° according to JIS, etc. However, if the number of turns changes, the tolerance will also change, so please contact us for more details.

Answer Mitkari P.S. 2022/12/15(Thu) 1:08

Generally, what is the activation angle of Torsion spring used in orthodontic expander, like quad helix expander?

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Answer Tokai Spring 2022/12/15(Thu) 11:42

Dear Mitkari,

Thank you for reaching out to us with your question.

We believe it would be best to consult with specialists or dentists for more detailed information on this kind of spring.
We apologize for not being able to assist you further with this particular inquiry.

If you have any other questions related to springs, please feel free to contact us anytime.

Best regards,
Tokai Spring’s Support Team

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