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  • UNI EN 13906-1 : 2013

    Current The latest, up-to-date edition.

    CYLINDRICAL HELICAL SPRINGS MADE FROM ROUND WIRE AND BAR - CALCULATION AND DESIGN - PART 1: COMPRESSION 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
    Introduction
    1 Scope
    2 Normative references
    3 Terms, definitions, symbols, units and abbreviated
       terms
    4 Theoretical compression spring diagram
    5 Design principles
    6 Types of Loading
    7 Stress correction factor k
    8 Material property values for the calculation of
       springs
    9 Calculation formulae
    10 Permissible torsional stresses
    Annex A (informative) - Examples of relaxation for cold
            coiled springs
    Bibliography

    Abstract - (Show below) - (Hide below)

    Defines the calculation and design of cold and hot coiled cylindrical helical compression springs with a linear characteristic, made from round wire and bar of constant diameter with values according to Table 1, and in respect of which the principal loading is applied in the direction of the spring axis.

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

    Committee CT 31
    Development Note Supersedes UNI 7900-2 and UNI 7900-4 (08/2003)
    Document Type Standard
    Publisher Ente Nazionale Italiano di Unificazione (UNI)
    Status Current
    Supersedes

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

    EN 15800:2008 Cylindrical helical springs made of round wire - Quality specifications for cold coiled compression springs
    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)
    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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