1、 WORLDWIDE ENGINEERING STANDARDS Material Specification GMW17063 Composite Specialty Bearings Copyright 2013 General Motors Company All Rights Reserved November 2013 Page 1 of 4 1 Scope 1.1 Material Description. This standard covers laminated composite specialty bearings as used in automotive compon
2、ents. 1.2 Symbols. Not applicable. 1.3 Typical Applications. Hinging: Hoods, Decklids, Liftgates and Doors. 2 References Note: Only the latest approved standards are applicable unless otherwise specified. 2.1 External Standards/Specifications. ASTM A666 ISO 11014-1 SAE J2329 2.2 GM Standards/Specifi
3、cations. 9984120 GMW2 GMW3059 GMW15192 9984123 GMW3044 GMW4700 2.3 Additional References. TMC003 Material Safety Data Sheet guidance documents (available at ). 3 Requirements See Table 1 for product requirements. 4 Manufacturing Process Not applicable. 5 Rules and Regulations 5.1 Legal Regulations.
4、All materials must satisfy applicable laws, rules, regulations and recommendations valid in the country of usage. 5.2 Language. In the event of conflict between the English and domestic language, the English language shall take precedence. 5.3 Inspection and Rejection. Samples of components or mater
5、ials released to a GM material specification shall be tested for conformity with the requirements of this material specification and approved by the responsible Engineering department prior to commencement of delivery of bulk supplies. A new approval must be received for any changes, e.g., propertie
6、s, manufacturing process, location of manufacture, etc. If not otherwise agreed, all testing and documentation normally required for initial release must be completed. It is the responsibility of the supplier to inform the customer in a timely manner, without solicitation, and to include documentati
7、on 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 to commencement of delivery of non-conforming bulk supplies. In individual cases, a shorter test can be agreed to be
8、tween the responsible Engineering department and the supplier. Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW17063 Copyright 2013 Gener
9、al Motors Company All Rights Reserved November 2013 Page 2 of 4 Table 1: Product Requirements for Bearings Code Liner Construction Paint Free Additives in Liner (Optional) Typical Thickness (Millimeters) Note 4 Substrate Material Note 3, Note 7 Typical Applications Typical Bearing Load (Megapascals)
10、 Note 8 Electrically Conductive A Filled Polytetrafluoroethylene (PTFE) with a WOVEN BRONZE welded mesh No 0.75, 1.00 Steel Door Hinges Spring Hook Pivots 180 to 220 Yes A1 Filled PTFE with a WOVEN ALUMINUM welded mesh No 1.00 Steel Door Hinges 180 to 220 Yes A2 Filled PTFE with a WOVEN ALUMINUM wel
11、ded mesh No 1.00 Aluminum Door Hinges 180 to 220 Yes A3 Filled PTFE with a WOVEN STAINLESS STEEL welded mesh No 0.96 Stainless Steel Tailgates and Exterior Hinging Products High Corrosion Environments 180 to 220 Yes B Filled PTFE tape with a STRETCHED BRONZE mesh Yes, with code Paint Free Red (PFR)
12、or Paint Free Beige (PFB) Note 1, Note 2 0.75, 1.00 Steel Door, Hood, Decklid Hinges 150 to 200 Yes Note 6 B1 Filled PTFE tape with a STRETCHED ALUMINUM mesh No 0.75, 1.00 Steel Door, Hood, Decklid Hinges 150 to 200 Yes B2 Filled PTFE tape with a STRETCHED ALUMINUM mesh No 0.75, 1.00 Aluminum Door,
13、Hood, Decklid Hinges High Corrosion Environments 150 to 200 Yes C Filled PTFE on a PROFILED BRONZE clad steel No 0.50, 0.75, 1.00 Steel Door Hinge Rollers High Impact Systems 400 No C1 Filled PTFE on a PROFILED BRONZE clad steel No 0.50, 0.75, 1.00 Steel Door Hinges, Hood Hinges, Trunk Hinges, Liftg
14、ate Hinges, Door Check Pivot, Seat Systems, Tilt Steering 137 Yes Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW17063 Copyright 2013 Ge
15、neral Motors Company All Rights Reserved November 2013 Page 3 of 4 Code Liner Construction Paint Free Additives in Liner (Optional) Typical Thickness (Millimeters) Note 4 Substrate Material Note 3, Note 7 Typical Applications Typical Bearing Load (Megapascals) Note 8 Electrically Conductive D Filled
16、 PTFE with a WOVEN BRONZE welded mesh Yes, with code PFR or PFB Note 1, Note 2 0.48 None Profile Door Hinges 100 to 140 Yes Note 6 D1 Filled PTFE with a WOVEN ALUMINUM welded mesh No 0.48 None Profile Door Hinges 100 to 140 Yes D2 Filled PTFE with a WOVEN STAINLESS STEEL welded mesh No 0.48 None Pro
17、file Door Hinges High Corrosion Environments 110 to 140 Yes D3 Filled PTFE with an EXPANDED METAL BRONZE MESH No 0.50 None Door Hinges, Hood Hinges, Trunk Hinges 49 Yes E Filled PTFE tape ONLY Yes, with code PFR or PFB Note 1, Note 2 0.50, 0.75 Steel Seats, Hood, Decklid Hinges, Wiper Arm Pivot 180
18、to 200 Yes, with code CN Note 5 E1 Filled PTFE tape ONLY Yes, with code PFR or PFB Note 1, Note 2 0.50, 0.75 Structured Aluminum (Dimpled) Door, Hood, Decklid Hinges High Corrosion Environments 180 to 200 Yes, with code CN Note 5 F Filled and THINNED PTFE tape with a STRETCHED BRONZE mesh Yes, with
19、code PFR or PFB Note 1, Note 2 0.50, 1.00 Steel Assist Steps Door Hinge Rollers High Impact Systems 240 to 300 Yes Note 6 Note 1: For paint or corrosion-sensitive applications, a PFR suffix can be added (Example: GMW17063 Code B - PFR). This liner is Red in color and consists of PTFE compound with a
20、pproximately 28% filler content of glass fibers, ferrous oxide pigment sintered into the stretched metal. Note 2: For paint or corrosion and friction-sensitive applications, a PFB suffix can be added (Example: GMW17063 Code D - PFB). This liner is Beige in color and consists of PTFE compound with ap
21、proximately 20% filler content of aromatic polyester sintered into the stretched metal. Note 3: Substrate corrosion protection shall be specified as an additional line item in the Math File/Part Print. Example: On Steel: Zinc Plating per GMW3044 6U48/0 or for increased corrosion performance, use GMW
22、4700 Zn-Ni Type A. Paint coatings (e-coat) may also be applied over platings, on stainless steel or aluminum substrates to inhibit galvanic corrosion from dissimilar material contact. Example: Zinc Plating per GMW3044 6U48/0 then zinc phosphate to 9984123 and e-coat per 9984120. Overall coating thic
23、kness must be considered to maintain dimensional tolerances. Note 4: Typical thickness of liner and substrate combined. Specific dimensions and tolerances shall be specified per Math File/Part Print. Note 5: Code E and E1 are normally electrically non-conductive. To assure electrical conductivity, C
24、onductivity Notches (CN) are required with or without the addition of Paint Free Additives (PFR or PFB) (Example: GMW17063 Code E - CN) - OR - (Example: GMW17063 Code E - PFR - CN). Note 6: Codes B, D and F are normally electrically conductive. If either Paint Free Additive PFR or PFB is added, then
25、 conductivity notches (CN) are required to assure electrical conductivity (Example: GMW17063 Code B - PFR - CN). Note 7: Substrate material shall comply with a material grade per an Industry standard (i.e., GMW2, GMW15192, ASTM A666, ISO 11014-1, SAE J2329, DIN EN, JIS). Note 8: Typical bearing load
26、s are static allowable pressures at room temperature. Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-GM WORLDWIDE ENGINEERING STANDARDS GMW17063 Copyright 2013 General Motors
27、 Company All Rights Reserved November 2013 Page 4 of 4 5.4 Material Safety Data Sheets/Safety Data Sheets (MSDS/SDS). For new product submissions, or when a change in chemical composition of an existing product has occurred, a complete copy of the Material Safety Data Sheet/Safety Data Sheet must be
28、 submitted in compliance with the Globally Harmonized System of Classification and Labeling of Chemicals (GHS) requirements or other country-specific MSDS/SDS requirements. In addition, product MSDS/SDS submissions must be in compliance with specific country General Motors TMC003 Material Safety Dat
29、a Sheet/Safety Data Sheet guidance documents where available. 5.5 All materials supplied to this standard must comply with the requirements of GMW3059, Restricted and Reportable Substances for Parts. 6 Approved Sources Materials supplied to this specification must be approved by General Motors. The
30、appropriate GM Materials Engineering department(s) must confirm material as meeting the requirements of this specification. Any test data sheets of material submitted to General Motors for such confirmation (e.g., during Production Part Approval Process (PPAP) under this material specification must
31、list all properties and must apply corresponding test methods of this material specification. 7 Notes 7.1 Glossary. DIN EN: Standards and specifications from the Deutsches Insitut fur Normung (DIN), in English (EN) JIS: Japanese Industrial Standard / Japanese Standards Association PFB: A beige-color
32、ed paint-free additive for paint or corrosion-sensitive applications. PFR: A red-colored paint-free additive for paint or corrosion and friction-sensitive applications. 7.2 Acronyms, Abbreviations, and Symbols. CN Conductivity Notches GHS Globally Harmonized System of Classification and Labeling of
33、Chemicals MSDS Material Safety Data Sheet PFB Paint Free Beige PFR Paint Free Red PPAP Production Part Approval Process PTFE Polytetrafluoroethylene SDS Safety Data Sheet Zn-Ni Zinc Nickel 8 Coding System This standard shall be referenced in other documents, drawings, etc., as follows: Material per
34、GMW17063 Code (Liner Construction A, B, C, etc.) (Paint free additives (PFR) or (PFB), if applicable), (Conductivity notches (CN), if applicable). Example: GMW17063 Code E1 PFR CN. 9 Release and Revisions This standard was originated in October 2013. It was first approved by the Materials-Ferrous (i
35、ncluding Sheet Metal) Global Subsystem Leadership Team in Nov 2013. It was first published in Nov 2013. Issue Publication Date Description (Organization) 1 NOV 2013 Initial publication. Copyright General Motors Company Provided by IHS under license with General Motors CompanyNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
