1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions Ver. 3 2008 10 13 N-STATUS Replaced by WSS-M13P13-A L. Schmalz, FNA 2004 03 31 Revised Para 3.0 inserted; para 3.11 & 4 deleted 1979 09 12 Released TJ2-OHA-620 Printed copies are uncontrolled Copyright 2008, Ford Global Technologies, LLC Page
2、1 of 2 GREASE, HIGH TEMPERATURE - NLGI NO. 2 ESL-M1C173-A NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a grease compounded to give the desired characteristics of a long life high temperature lubricant. This grease shall be a homogenous product, free from oil s
3、eparations, abrasive fillers, and be non-corrosive to the lubricated parts in service. 2. APPLICATION This specification was released originally for grease used as a lubricant for driveshaft slip yokes, U-joints and wheel bearings. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS M
4、aterials suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.1 MOISTURE, % max 0.25 (ASTM D 95) 3.2 THICKENER, % 10 - 15 (ASTM D 128) 3.3 DROPPING POINT, C min 260 (ASTM D 566) 3.4 MINERAL OIL REQUIREMENTS 3.4.1 Viscosity at 37
5、8 oC, min 183 cSt (mm2/S) (ASTM D 445) 3.4.2 Viscosity at 98.9 oC 14.2 - 17.0 (ASTM D 445) 3.4.3 Pour Point C max -15 (ASTM D 97) 3.4.4 Flash Point C min 250 (ASTM D 92) 3.4.5 Fire Point C min 285 (ASTM D 92) ENGINEERING MATERIAL SPECIFICATIONESL-M1C173-A Printed copies are uncontrolled Copyright 2
6、008, Ford Global Technologies, LLC Page 2 of 2 3.5 CONSISTENCY STABILITY, (mm/10) 265 - 295 (ASTM D 217) 60 strokes worked 3.6 OXIDATION STABILITY (ASTM D 942) 3.6.1 Pressure drop in 1000 hrs, kPa, 345 (50) (psi), max 3.6.2 Penetration (after oxidation), % 25 increase max 3.7 FILM STRENGTH DURABILIT
7、Y, No Score, min hrs 1 (ASTM D 2782) 3.8 FOURBALL WEAR TEST, Scar dia, mm max 1 3.9 WATER WASHOUT, % max 6 (ASTM D 1264, 80 oC) 3.10 STORAGE STABILITY The worked penetration of the material after being stored for a six month period at a temperature of 38 oC +/- 2 oC in an oil tight container shall not have changed from the original worked penetration of the material by more than 30 points.
