1、 ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Action Revisions 2009 11 12 N-STATUS No known use. No replacement named D. DiGregorio, NA 2002 10 11 Revised Updated and renumbered 1973 02 28 Revised and Retyped CDB2-703700-3 Printed copies are uncontrolled Page 1 of 2 Cop
2、yright 2009, Ford Global Technologies, Inc. LUBRICANT, BRAKE CYLINDER ESA-M97B23-A LUBRICANT, BRAKE CYLINDER - LOW VISCOSITY ESA-M97B23-B LUBRICANT, AIR SHOCK SLEEVE ESA-M97B23-C NOT TO BE USED FOR NEW DESIGN 1. SCOPE The lubricant defined by this specification is a polyalkylene-glycol with oxidatio
3、n and corrosion inhibitors added. 2. APPLICATION This specification was released originally for material for coating hydraulic brake cylinder cups, pistons, and brake system booster air filter components. 3. REQUIREMENTS 3.1 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part
4、producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). ESA-M97B23-A ESA-M97B23-B ESA-M97B23-C 3.2 VISCOSITY (ASTM D 445) 3.2.1 Centistokes 237-275 cSt 60-72 cSt 550-600 cSt at 37.8 +/- (mm2/s) (mm2/s) (mm2/s) 1.1 C 3.2.2 Centistokes 35-45 cSt 10-13 cS
5、t 75-95 cSt at 98.9 +/- (mm2/s) (mm2/s) (mm2/s) 1.1 C 3.3 VISCOSITY INDEX, min 137 146 225 (ASTM D 2270) 3.4 WATER CONTENT, max 0.25% 0.25% 0.50% (ASTM D 1744) 3.5 ASH CONTENT, max 0.01% 0.01% 0.01% (ASTM D 482) ENGINEERING MATERIAL SPECIFICATION ESA-M97B23-A/B/C Page 2 of 2 Copyright 2009, Ford Glo
6、bal Technologies, Inc. 3.6 POUR POINT, max -23 C -29 C -23 C (ASTM D 97) 3.7 FLASH POINT, min 221 C 219 C 221 C (ASTM D 92) 3.8 FIRE POINT, min 266 C 254 C 240 C (ASTM D 92) 3.9 RUBBER, SWELL, 0.02 in 0.05 in - DIA. INCREASE, max (0.5 mm) (1.3 mm) - (SAE J1703C SBR Rubber 120 h at 70 +/- 1 C) 4. GEN
7、ERAL INFORMATION This information given below is provided for clarification and assistance in meeting the requirements of this specification. 4.1 REFRACTIVE INDEX (ASTM D 1747) Must not vary from suppliers mean value by more than 0.002. 4.2 SPECIFIC GRAVITY (ASTM D 1298) Must not vary from suppliers mean value by more than 0.0025.
