National foreword

This British Standard is the UK implementation of EN 15800:2008. It partially supersedes BS 1726‑1:2002, which is being revised to remove conflicting material. In the meantime, where conflict exists between the two standards the provisions of BS EN 15800:2008 take precedence.

The UK participation in its preparation was entrusted by Technical Committee FME/9, Fasteners, to subcommittee FME/9/3, Product standards for fasteners.

A list of organizations represented on this subcommittee can be obtained on request to its secretary.

This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.

Compliance with a British Standard cannot confer immunity from legal obligations.

This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 January 2009

This European Standard was approved by CEN on 18 October 2008.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN Management Centre or to any CEN member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.

Foreword

This document (EN 15800:2008) has been prepared by Technical Committee CEN/TC 378 "Project Committee – Springs", the secretariat of which is held by DIN.

This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by June 2009, and conflicting national standards shall be withdrawn at the latest by June 2009.

This European Standard has been prepared by the initiative of the Association of the European Spring Federation ESF and is based on the German Standard DIN 2095 "Helical springs made of round wire — Specification for cold coiled compression springs", which is known and used in many European countries.

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights.

According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom.

1 Scope

This European Standard applies to cylindrical helical compression springs made of round spring wire. Cold coiled compression springs can be made with wire up to about 16 mm diameter. (See also EN 13906‑1).

Cylindrical helical springs made of round wire from European Standard materials are subject to the limiting values in Table 1:

A specification for the parameters of cold formed helical compression springs is given in Annex B.

2 Normative references

3 Representation

4 Definitions, symbols, units and terms

5 Requirements

5.1 Coiling direction

5.2 Spring ends

5.3 Solid length L_c

5.4 Material

5.5 Surface Treatment

6 Quality grades

6.1 Permissible variations of Quality Grades

6.2 Permissible variations of wire diameters d

6.3 Permissible variations A_D for coil diameter D of unloaded spring

6.4 Permissible variations A_F for spring force F at given spring length L

6.5 Permissible variations A_L0 for length L₀ of unloaded spring

6.6 Permissible variations e₁ and e₂ of unloaded springs with ends closed and ground

6.7 Production margin

7 Testing

7.1 Static load testing

7.2 Characteristic

7.3 Test load for pressing to solid length (settling testing)

Bibliography

BS EN 15800:2008

Cylindrical helical springs made of round wire. Quality specifications for cold coiled compression springs

Current

Published:

31 Jan 2009