1、EUROPEENGINEERINGSTANDARDSMaterial Specification GME17367Bearing Material Copyright 2016 General Motors Company All Rights ReservedApril 2016 Page 1 of 41 Scope1.1 Material Description.Code A Code BMaterial: Bearing material Bearing materialTrade Name: iglidur H4 iglidur PSupplier: Igus GmbHD - 5114
2、7 CologneIgus GmbHD - 51147 Cologne1.2 Symbols. Not applicable.1.3 Applicability.Code A: Bearing material for cylindrical and plain bearings for application of fuels, oils etc., when high wearfriction is required. The bearings can be used for low coefficients of friction, for high temperature resist
3、ance from(-40 to +200) C, for high resistance of chemicals and for low moisture absorption.Not to use for underwater application and when a temperature and media resistant bearing for mainly staticapplications is sought.Code B: Maintenance free bearing with good heat stability, low moisture absorpti
4、on, extremely dimension stablein varying ambient conditions, recommended for rotary movements with medium to high loads.1.4 Remarks. Not applicable.2 ReferencesNote: Only the latest approved standards are applicable unless otherwise specified.2.1 External Standards/Specifications.ASTM C 177 DIN 5345
5、7 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 ).GM EUROPE ENGINEERING STANDARDS GME17367 Copyright 2016 General Motors Company All
6、 Rights ReservedApril 2016 Page 2 of 43 Requirements3.1 General.Properties UnitValueStandardCode A Code BDensity g/cm3 1.79 1.58 ISO 2811Colour brown blackMax. humidity absorption at +23 C / 50 % R.H. % by mass 0.1 0.2 DIN 53495Max. water absorption % by mass 0.2 0.4 ISO 62Coefficient of surface fri
7、ction, dynamic, againststeel0.08 to 0.25 0.06 to 0.21 ISO 7902-1PV values max. (dry) MPa x m/s 0.7 0.39 ISO 7902-13.2 Mechanical Properties.Properties UnitValueStandardCode A Code BBending E-module MPa 7 500 5 300 DIN 53457Tensile strength at +20 C MPa 120 120 DIN 53452Compressive strength at +20 C
8、MPa 50 66 ASTM D 6484Maximum recommended surface pressure(+20 C)MPa 65 50 ASTM D 6484Hardness Shore D 80 75 DIN 535053.3 Physical and Thermal Properties.Properties UnitValueStandardCode A Code BMax. long term application temperature C +200 +130Max. short term application temperature C +240 +200Upper
9、 short-term ambient temperature Note 1 C +260 +200Lower application temperature C -40 -40Heat conductivity W/(m K) 0.24 0.25 ASTM C 177Coefficient of thermal expansion (at +23 C) K1 x 105 5 4 DIN 53752Note 1: Without additional load; no gliding movement; relaxation not excluded.GM EUROPE ENGINEERING
10、 STANDARDS GME17367 Copyright 2016 General Motors Company All Rights ReservedApril 2016 Page 3 of 43.4 Electrical Properties.Properties UnitValueStandardCode A Code BSpecific forward resistance cm 1013 1013 IEC 93Surface resistance 1012 1012 DIN 534824 Manufacturing ProcessNot applicable.5 Rules and
11、 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, the English language shalltake precedence.5.3 Inspection and Rejection.
12、 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 commencement of delivery of bulk supplies.A new approval must be received for
13、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 supplier to inform the customer in a timely manner, without solicitation, a
14、nd 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 delivery of non-conforming bulk supplies. In individual cases, a shorter te
15、st can be agreed tobetween the responsible Engineering department and the supplier.5.4 Material Safety Data Sheets/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
16、/Safety Data Sheet must be submitted in compliance with the Globally Harmonized System ofClassification and Labeling of Chemicals (GHS) requirements or other country-specific MSDS/SDSrequirements. In addition, product MSDS/SDS submissions must be in compliance with specific country GeneralMotors TMC
17、003 Material Safety Data Sheet/Safety Data Sheet guidance documents where available.5.5 All materials supplied 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 fo
18、r this standard. Only sources listed in the GMMaterials File under this specification number have been qualified 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 so
19、urcein that individual country.GM EUROPE ENGINEERING STANDARDS GME17367 Copyright 2016 General Motors Company All Rights ReservedApril 2016 Page 4 of 47 Notes7.1 Glossary. Not applicable.7.2 Acronyms, Abbreviations, and Symbols.GHS Globally Harmonized System of Classification and Labeling of Chemica
20、lsMSDS Material Safety Data SheetPPAP Production Part Approval ProcessR.H. Relative HumiditySDS Safety Data Sheet8 Coding SystemThis standard shall be referenced in other documents, drawings, etc., as follows:Example: Material per GME17367, Code A9 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)2 APR 2016 Material added, separated into Code A and B.(GME Metallurgy Fasteners Sealing Systems)
