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 08 16 Revised Updated and renumbered 1963 04 23 Released AS2-212 Printed copies are uncontrolled Page 1 of 2 Copyright 2009, Ford
2、 Global Technologies, Inc LUBRICANT, BRAKE CYLINDER ASSEMBLY ESA-M97B25-A NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a castor oil - polypropylene glycol lubricant with corrosion inhibitors added. 2. APPLICATION This specification was released originally for
3、a lubricant used for coating hydraulic brake cylinder cups and pistons for production assembly. 3. REQUIREMENTS 3.1 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.2 V
4、ISCOSITY (ASTM D 445 and D 446) 3.2.1 At 37.8 C, min 50.5 cSt (mm2/S) 3.2.2 At 98.9 C 9.4 +/- 0.4 cSt (mm2/S) 3.3 VISCOSITY INDEX, min 127 (ASTM D 567) 3.4 REFRACTIVE INDEX 1.451 3.5 SPECIFIC GRAVITY 0.976 - 0.982 (ASTM D 1298) 3.6 WATER CONTENT, max 0.50% 3.7 ASH CONTENT, max 0.10% 3.8 POUR POINT, max -43 C (ASTM D 97) ENGINEERING MATERIAL SPECIFICATION ESA-M97B25-A Page 2 of 2 Copyright 2009, Ford Global Technologies, Inc. 3.9 FLASH POINT, min 71 C (ASTM D 92) 3.10 FIRE POINT, min 71 C (ASTM D 92) 3.11 RUBBER SWELL, Dia Increase, max 0.02 in (0.5 mm) (120 hrs at 70 +/- 1C)
