1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2008 10 10 N-STATUS Replaced by WSS-M13P13-A L. Schmalz, FNA 2003 10 29 Revised Para 3.0 inserted; paras 3.12, 3.13 and 4 deleted 1966 11 01 Released PA-486517 Printed copies are uncontrolled Copyright 2008, Ford Global Technologies, Inc. Page
2、 1 of 2 GREASE - AIR PUMP BALL BEARING ESW-M1C142-A NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a grease consisting of a uniform blend of refined mineral oil, synthetic thickener, rust and oxidation inhibitors. 2. APPLICATION This specification was released o
3、riginally for grease used to lubricate ball bearings in the exhaust emission system air pump. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.1 PEN
4、ETRATION 265 - 295 (ASTM D 217, worked 60 strokes) 3.2 DROPPING POINT, min 219 C (ASTM D 2265) 3.3 COMPOSITION 3.3.1 Polyurea Thickener 8% - 10% (Supplied certification required.) 3.3.2 Mineral Oil Balance (including oil soluble inhibitors) 3.3.2.1 Viscosity at 37.8 C 118.8-139.4 cSt (ASTM D 445 & D
5、 2161) (mm2/s) 3.3.2.2 Viscosity Index, min 85 (ASTM D 2270) 3.4 OXIDATION STABILITY, Pressure Drop, max 10 psi (68 kPa) (ASTM D 942, 100 hrs.) 3.5 LOW TEMPERATURE TORQUE (ASTM D 1478, at -18 C) 3.5.1 Starting Torque, max 15 000 gcm 3.5.2 Running Torque, max 5000 gcm ENGINEERING MATERIAL SPECIFICATI
6、ONESW-M1C142-A Printed copies are uncontrolled Copyright 2008, Ford Global Technologies, Inc. Page 2 of 2 3.6 RUST PREVENTATIVE PROPERTIES, max No. 2 rating (ASTM D 1743, except conduct test for one day at 52 +/- 3 C) 3.7 COPPER CORROSION (Federal Std. 791a, MTHD 5309.2) No discoloration of copper n
7、or green coloration of the grease. 3.8 OIL SEPARATION, max 5% (Federal Std. 791a, MTHD 321.2) 3.9 DIRT CONTENT (Federal Std. 791a, MTHD 3005.2) 3.9.1 Particles, 10 microns or greater, max 10,000 3.9.2 Particles, 25 microns or greater, max 2,000 3.9.3 Particles, 50 microns or greater, max 100 3.9.4 P
8、articles, 125 microns or greater None 3.10 RUBBER SWELL, max by volume 10% Federal Std. 791a, MTHD 3603.3, using standard “L“ type rubber obtainable from the Aeronautical Materials Laboratory, Naval Air Engineering Center, Philadelphia, Pennsylvania 19112) 3.11 HIGH SPEED BEARING TEST AT 177 C, min 400 hours (Federal Std. 791a, MTHD 331.1)
