1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2003 10 10 Revised Para 3.0 inserted; para 3.3 and 4 deleted 1978 07 18 Metricated and Retyped CE3H-RD782440-E SUPP#3 1973 11 26 Released E3C-012416 Printed copies are uncontrolled Copyright 2003, Ford Global Technologies, Inc. Page 1 of 1 BEA
2、RING, STEEL BACKED, Al-Sn - UNPLATED ESE-M8A12-A 1. SCOPE The material defined by this specification is unplated aluminum tin alloy bearing metal. 2. APPLICATION The specification was released originally for insert type connecting rod or main bearings. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR P
3、RODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.1 COMPOSITION The bearing shall consist of a steel backing with an aluminum alloy bonded to it. 3.1.1 Steel Backing SAE 1008 thru SAE 1020 cold ro
4、lled. 3.1.2 Lining Alloy Tin 17.7 - 22.5 Copper 0.7 - 1.3 Iron 0.70 max Silicon 0.70 max Manganese 0.10 max Nickel 0.10 max Titanium 0.10 max Others, Each 0.05 max Others, Total 0.15 max Aluminum Remainder 3.2 QUALITY The quality of the bearing material and steel back shall be uniform, free from surface or internal defects detrimental to the performance of the bearing. The bearing metal shall be firmly and continuously bonded to the steel back.
