1、EUROPEENGINEERINGSTANDARDSMaterial Specification GME17367Bearing Material Copyright 2015 General Motors Company All Rights ReservedMarch 2015 Page 1 of 31 Scope1.1 Material Description.Material: Bearing materialTrade Name: iglidur H4Supplier: Igus GmbHD - 51147 Cologne1.2 Symbols. Not applicable.1.3
2、 Applicability. Bearing material for cylindrical and plain bearings for application of fuels, oils etc., when highwear friction is required. The bearings can be used for low coefficients of friction, for high temperature resistancefrom (-40 to +200) C, for high resistance of chemicals and for low mo
3、isture absorption.Not to use for underwater application and when a temperature and media resistant bearing for mainly staticapplications is sought.1.4 Remarks. Not applicable.2 ReferencesNote: Only the latest approved standards are applicable unless otherwise specified.2.1 External Standards/Specifi
4、cations.ASTM C 177 DIN 53457 DIN 53505 ISO 62ASTM D 6484 DIN 53482 DIN 53752 ISO 2811DIN 53452 DIN 53495 IEC 932.2 GM Standards/Specifications.GMW30592.3 Additional References.TMC003 Material Safety Data Sheet guidance documents (available at ).3 Requirements3.1 General.Properties Unit Value Standar
5、dDensity g/cm31.79 ISO 2811Colour BrownMax. humidity absorption at +23 C / 50 % R. H. % by mass 0.1 DIN 53495Max. water absorption % by mass 0.2 ISO 62Coefficient of surface friction, dynamic, against steel 0.08 to 0.25 ISO 7902-1PV values max. (dry) MPa x m/s 0.7 ISO 7902-1GM EUROPE ENGINEERING STA
6、NDARDS GME17367 Copyright 2015 General Motors Company All Rights ReservedMarch 2015 Page 2 of 33.2 Mechanical Properties.Properties Unit Value StandardBending E-module MPa 7 500 DIN 53457Tensile strength at +20 C MPa 120 DIN 53452Compressive strength at +20 C MPa 50 ASTM D 6484Maximum recommended su
7、rface pressure (+20 C) MPa 65 ASTM D 6484Hardness Shore D 80 DIN 535053.3 Physical and Thermal Properties.Properties Unit Value StandardMax. long term application temperature C +200Max. short term application temperature C +240Upper short-term ambient temperatureNote 1C +260Lower application tempera
8、ture C -40Heat conductivity W/(m K) 0.24 ASTM C 177Coefficient of thermal expansion (at +23 C) K1x 1055 DIN 53752Note 1: Without additional load; no gliding movement; relaxation not excluded.3.4 Electrical Properties.Properties Unit Value StandardSpecific forward resistance cm 1013IEC 93Surface resi
9、stance 1012DIN 534824 Manufacturing ProcessNot applicable.5 Rules and Regulations5.1 Legal Regulations. All materials must satisfy applicable laws, rules, regulations and recommendations validin the country of usage.5.2 Language. In the event of conflict between the English and domestic language, th
10、e English language shalltake precedence.5.3 Inspection and Rejection. Samples of components or materials released to a GM material specificationshall be tested for conformity with the requirements of this material specification and approved by the responsibleEngineering department prior to commencem
11、ent of delivery of bulk supplies.A new approval must be received for any changes, e.g., properties, manufacturing process, location ofmanufacture, etc. If not otherwise agreed, all testing and documentation normally required for initial release mustbe completed.It is the responsibility of the suppli
12、er to inform the customer in a timely manner, without solicitation, and to includedocumentation of all modifications of materials and/or processes and to apply for a new release.If not otherwise agreed, all release tests shall be repeated and documented by the supplier prior tocommencement of delive
13、ry of non-conforming bulk supplies. In individual cases, a shorter test can be agreed tobetween the responsible Engineering department and the supplier.GM EUROPE ENGINEERING STANDARDS GME17367 Copyright 2015 General Motors Company All Rights ReservedMarch 2015 Page 3 of 35.4 Material Safety Data She
14、ets/Safety Data Sheets (MSDS/SDS). For new product submissions, or when achange in chemical composition of an existing product has occurred, a complete copy of the Material SafetyData Sheet/Safety Data Sheet must be submitted in compliance with the Globally Harmonized System ofClassification and Lab
15、eling of Chemicals (GHS) requirements or other country-specific MSDS/SDSrequirements. In addition, product MSDS/SDS submissions must be in compliance with specific country GeneralMotors TMC003 Material Safety Data Sheet/Safety Data Sheet guidance documents where available.5.5 All materials supplied
16、to this standard must comply with the requirements of GMW3059, Restricted andReportable Substances for Parts.6 Approved SourcesEngineering qualification of an approved source is required for this standard. Only sources listed in the GMMaterials File under this specification number have been qualifie
17、d by engineering as meeting the requirementsof this standard for use in North America.For other GM locations, the responsible engineering group should be contacted to obtain the approved sourcein that individual country.7 Notes7.1 Glossary. Not applicable.7.2 Acronyms, Abbreviations, and Symbols.GHS
18、 Globally Harmonized System of Classification and Labeling of ChemicalsMSDS Material Safety Data SheetPPAP Production Part Approval ProcessSDS Safety Data Sheet8 Coding SystemThis standard shall be referenced in other documents, drawings, etc., as follows:Example: Material per GME173679 Release and RevisionsThis standard was first approved and released in March 2015.Issue Publication Date Description (Organization)1 MAR 2015 Initial publication. (GME Metallurgy Fasteners Sealing Systems)
