1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2008 10 13 N-STATUS Replaced by WSS-M13P13-A L. Schmalz, FNA 2004 01 27 Revised Para 3.0 inserted; para 3.4, 4 deleted 1978 08 23 Released Printed copies are uncontrolled Copyright 2008, Ford Global Technologies, LLC Page 1 of 2 SILICONE GREAS
2、E ESA-M1C181-A NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a synthetic lubricating grease consisting of dimethyl silicone and polydimethylsiloxane. 2. APPLICATION This material was released originally for rack and pinion steering gear tie rod ends. 3. REQUIRE
3、MENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Materials suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.1 WORKED PENETRATION (60X), max 350 (ASTM D 217) 3.2 BLEED, max 10% (Federal Test Method 791a, MTHD 321.2, 2
4、4 h at 200 oC) 3.3 EVAPORATION, max 2.5% (24 h at 200 oC) 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 DROPPING POINT, min 275 oC (ASTM D 566) 5.2 OXIDATION STABILITY 34 kPa (5 psi) (ASTM D 942,
5、 Pressure Drop after 100 h) 5.3 LOW TEMPERATURE STABILITY Must not freeze (24 h at -40 oC) ENGINEERING MATERIAL SPECIFICATIONESA-M1C181-A Printed copies are uncontrolled Copyright 2008, Ford Global Technologies, LLC Page 2 of 2 5.4 BASE (DIMETHYL SILICONE AND POLYMETHYLSILOXANE) 5.4.1 Viscosity of Base at 25 oC 850 - 950 mm2/s (cSt) (ASTM D 445) 5.4.2 Flash Point, min 300 oC (ASTM D 92) 5.4.3 Neutralization Number, max .05 (ASTM D 664) 5.5 SPECIFIC GRAVITY (25 oC) 77 oF 1.0
