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  • UNI EN 13906-2 : 2013

    Current The latest, up-to-date edition.

    CYLINDRICAL HELICAL SPRINGS MADE FROM ROUND WIRE AND BAR - CALCULATION AND DESIGN - PART 2: EXTENSION SPRINGS

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    Published date:  23-10-2013

    Publisher:  Ente Nazionale Italiano di Unificazione (UNI)

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    Table of Contents - (Show below) - (Hide below)

    Foreword
    1 Scope
    2 Normative references
    3 Terms and definitions, symbols,
       units and abbreviated terms
    4 Theoretical extension spring diagram
    5 Types of loading
    6 Stress correction factor k
    7 Initial tension force F[0]
    8 Material property values for the calculation
       of springs
    9 Calculation formulae
    10 Permissible torsional stress under static
       or quasi-static loading
    11 Calculation of extension springs for dynamic
       loading
    Annex A (informative) - Types of spring ends
    Bibliography

    Abstract - (Show below) - (Hide below)

    Describes the calculation and design of cold and hot coiled helical extension springs made from round wire and bar with values according to Table 1, loaded in the direction of the spring axis and operating at normal ambient temperatures.

    General Product Information - (Show below) - (Hide below)

    Committee CT 31
    Development Note Supersedes UNI 7900-5 (08/2003)
    Document Type Standard
    Publisher Ente Nazionale Italiano di Unificazione (UNI)
    Status Current
    Supersedes

    Standards Referencing This Book - (Show below) - (Hide below)

    EN 12166:2016 Copper and copper alloys - Wire for general purposes
    EN 10270-3:2011 Steel wire for mechanical springs - Part 3: Stainless spring steel wire
    EN 10089:2002 Hot-rolled steels for quenched and tempered springs - Technical delivery conditions
    EN ISO 26909:2010 Springs - Vocabulary (ISO 26909:2009)
    EN 13906-1:2013 Cylindrical helical springs made from round wire and bar - Calculation and design - Part 1 : Compression springs
    ISO 26909:2009 Springs Vocabulary
    ISO 2162-1:1993 Technical product documentation — Springs — Part 1: Simplified representation
    EN 10270-1:2011+A1:2017 Steel wire for mechanical springs - Part 1: Patented cold drawn unalloyed spring steel wire
    EN ISO 2162-1 : 1996 TECHNICAL PRODUCT DOCUMENTATION - SPRINGS - SIMPLIFIED REPRESENTATION
    ISO 26910-1:2009 Springs — Shot peening — Part 1: General procedures
    EN 10270-2:2011 Steel wire for mechanical springs - Part 2: Oil hardened and tempered spring steel wire
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