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1、I GENERAL MOTORS ENGINEERING STANDARDS I Materials and Processes - Metals 1 Rev B C BEARING AND BUSHING ALLOY GM3874M GM3889M GM431M GM4111M GM4167M GM4168M GM4195M Date Description 4/89 Editorial 11/97 Editorial: akas added GM6158M GM Spedfi- cation Numbers 3874M 4167M 4168M 4195M 1 SCOPE. niis sta
2、ndard covers lead, tin and aluminum alloys used primarily as overlays and overplates in bearing composites. (Coverage for composites are published elsewhere in the GM Standards.) 1.1 GM3874M, GM4167M, GM4168M, and GM4195M are Lead Base. GM4031M and GM4111M are Tin Base. GM3889M, GM6158M. and GM6159M
3、 are Aluminum Base. 1.2 RESTRICTED AND REPORTABLE CHEMICALS (GMlOOOM). A l i materials supplied to this Specification must comply with the requllements listed in GMlOOOM, Restricted and Reportable CherniealS. 2 REFERENCED STANDARDS. Sim- Pb % SN Cu Sb % As S % Bi% Fe % Ni % A i % Zn % Other Other ii
4、ar % % S S SAE Each Total 5460 % 19 Balance 8.0- 1.25 - - - - 0.10 - 0.005 0.005 0.05 0.50 12.0 - 3 .OO 16 Balance 4.20 0.02 3.25 - 0.05 0.0015 0.10 0.10 0.01 0.005 0.005 0.03 0.20 - - 3.75 - 0.005 0.03 4.70 0.05 3.0 - 3.5 0.10 4.0 4.70 7.0 11.0 11.0 16.0 - 0.6 0.005 - 13 Balance 5.0 - 0.70 9.0- 0.1
5、0 0.005 0.10 0.01 0.01 0.005 0.005 0.30 0.50 14 Balance 9.0 - 0.50 14.0- 0.30 0.0015- 0.10 0.01 0.01 0.005 0.005 0.03 0.20 GMlOOOM 3 CHEMICAL AND PHYSICAL PROPERTIES. Materials shall conform to the limits shown in Tables 1 through 3 for the applicable GM numbers. 3.1 Bearing materials shall be free
6、of aii defects detrimental to the performance of the materiai in processing or service. 4 INITIAL SOURCE APPROVAL. No shipment shall be made by any supplier until representative initial production samples have been approved by engineering as meeting the requirements of this specification. 4.1 Comple
7、ted copies of the Material Safety Data Sheet meeting GM information requirements must be submitted with GM6159M any new submissions or whenever a composition change has occurred 5 INSPECTION AND REJECTION. All shipments of material or parts under contract or purchase order manufac- aired to this spe
8、cification shali be equivalent in every respect to the i n i t i a i samples approved by engineering. There shali be no changes in either formuiation or manufacturing processes permitted without prior notification and approval by engineer- ing. Lack of notification by the supplier constitutes ground
9、s for rejection of any shipment. While samples may be taken h m incoming shipments and checked for conformance to this specification, the supplier shall accept the responsibility for incoming shipments meeting this specification without depen- dence upon purchasers inspection. 6 APPROVED SOURCES. En
10、gineering qualification of an approved some is required for this specification. only sources listed in the GM Corporate Materials File under this specification number have been qualified by engineering as meeting the requirements of this specification. Sources are available through the on-line MATSP
11、C System. 7 GENERAL INFORMATION. This standard was issued in July 1934. The latest revisions include: TABLE 1 - LEAD BASE BEARING ALLOYS (NOTE) Q Cq&htDECEMBER 1897 oensral MdasCixpWm All Rights Reswwd DECEMBER 1997 PAGE 1 3874M Copyright General Motors North America Provided by IHS under license wi
12、th GM Licensee=IHS Employees/1111111001, User=Japan, IHS Not for Resale, 06/23/2008 23:01:54 MDTNo reproduction or networking permitted without license from IHS -,-,- I GENERAL MOTORS ENGINEERING STANDARDS I Materials and Processes - Metals 1 466“ (241C) 4400 psi (30.3 m a ) approximate 17.3 10.8 20
13、00 psi for thickness 0.005 in. (13.8 MPa for thickness 0.13 = ) BEARING AND BUSHING ALLOY GM3874M GM389M GM4031M GM4111M GM4167M GM4168M GM4195M GM6158M GM6159M 4 6 6 F (241C) 4500 psi (31.0 MPa) approximate 22.5 10.5 2000 psi for thickness 0.008 in. (13.8 MPa for thickness .20 = ) PHYSICAL AND MECH
14、ANICAL PROPERTIES (FOR REFERENCE - NOT PART OF SPECIFICATION) Melting Point Compressive Yield at 0.125% Deformation Hardness (HB) At 68F (20C) At 210F (99C) Typicai Safe Loading GM SwcMcation No. I GM3874M - 4500 psi (31.0 MPa) approximate - - 12000 psi for thickness 0.001 in. (82.7 MPa for thicknes
15、s 0.03 - 1 GMSpec Sim- No. i l l u SAE 5460 GM4031M 12 GM4111M - GM4167M Sn% Cu% Sb% Pb% Bi% As% S % Ai% Zn% Fe% Other Other Each Total 88.0 min 3.0- 7.0- 0.25 0.05 0.10 - 0.005 0.005 0.10 0.03 0.50 4.0 8.0 Baiance - 0.10 0.25 - - - 0.005 0.005 - 0.05 0.50 4 7 2 F 1244C) Melting Point Compressive Yi
16、eld at 0.125% Deformation Hardness (HB): 68F (20C) 2100 psi (14.4 MPa) approximate 46T (241C) 450F (232C) 6100 psi (42.1 MPa) approximate - 24.5 - 10.5 7 . 9 Typical Safe Loading 2000 psi thickness 0.005 in. (13.8- MPa for thickness 0.13 mm) 4ooo psi for thickness 0.003 in. (27.6 MPa for thickness 0
17、.08 -1 - GM416M I GM4195M GM specifi- cation Number GM3889M GM6158M GM6159M Sim- Ai k Cu% W Cd Si% Mg Mn Sn % Ti Fe % Zn Ni Other Other ilar % % % % % Each lbtal SAE 3460 781 Balance 0.05 - - 0.8- 3.5 - 0.05 - - - 0.02 0 . 3 5 0.15 - 0.05 0.50 0.15 1.4 4.5 0.15 0.15 9.0 1.6 4.5 0.15 0.35 0.6 1.30 22
18、.5 787 Balan= 0 . 0 5 - 4.0 - 0.7 - 3.5 - 0.05 - 0.20 - 0.30 - 0.02 0.25 0.15 - 0.05 0.35 783 Baiance 0.7- - - 0.50 - 0.10 17.5 - 0.10 0.35 - 0.10 - 0.15 NOTE: AU values not given as ranges are maximum. PHYSICAL AND MECHANICAL PROPERTIES (FOR REFERENCE - NOT PART OF SPECIFICATION) GM Swdncation No.
19、I GM403 1 M I GM4111M 3874M PAGE 2 DECEMBER 1997 Copyright General Motors North America Provided by IHS under license with GM Licensee=IHS Employees/1111111001, User=Japan, IHS Not for Resale, 06/23/2008 23:01:54 MDTNo reproduction or networking permitted without license from IHS -,-,- I GENERAL MOT
20、ORS ENGINEERING STANDARDS I Materials and Processes - Metals i GM Specification No. GM3889M Melting Point 1025T (552C) Tensile Strength 23 o00 - 30 O00 psi (158.6 - 206.9 m a ) Yield 21 ooO-29OOOpsi Hardness (HRlST) 67 - 72 (144.8 -199.9 MPa) Elongation 2% min (NOTE 2) 3% min (NOTE 3) than .O17 i n
21、. (55.2 MPa for thickness less than .43 mm) Qpical Safe Loading 8000 psi for thickness less BEARING AND BUSHING ALLOY GM374M GM3889M GM431M GM4111M GM4167M GM4168M GM4195M GM6158M GM6159M GM6159M 17 O00 psi (117.2 MPa) 7500 psi (5 1.7 MPa) GM6158M 1025F (552C) 450F (232C) - - - 39 - 20% min (NOTE 4)
22、 8000 psi for thicbess less - than .O17 in. (55.2 MPa for thickness less than .43 mm) DECEMBER 1997 PAGE 3 3874M Copyright General Motors North America Provided by IHS under license with GM Licensee=IHS Employees/1111111001, User=Japan, IHS Not for Resale, 06/23/2008 23:01:54 MDTNo reproduction or networking permitted without license from IHS -,-,-