1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev. 2 2011 06 28 Revised See Summary of Revisions S. Ryzyi, FNA 2004 04 29 Revised Para 3.0 inserted; para 3.1, 3.2, 3.3, 3.6 & 4 deleted 1995 02 28 C10460362 Released Controlled document at www.MATS Copyright 2011, Ford Global Technologies,
2、 LLC Page 1 of 2 GREASE, LITHIUM, SYNTHETIC HYDROCARBON, NLGI 2 WSS-M1C234-A2 1. SCOPE The material defined by this specification is grease consisting of synthetic hydrocarbon, lithium soap thickener and other additives to give the desired characteristics. 2. APPLICATION This specification was relea
3、sed originally for grease used to lubricate control mechanisms where excellent low temperature properties are required. Suitable for slides, plain or roller bearings with good plastics compatibility and damping characteristics. 3. REQUIREMENTS 3.1 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Mater
4、ial suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.2 COLOR Beige (Visual) 3.3 COPPER CORROSION 1 (DIN 51811 24h, 100C) 3.4 WORKED PENETRATION, tenths of a millimeter 265 295 (ASTM D 217, DIN ISO 2137, 60 stroke) 3.5 DROPPI
5、NG POINT 180 C min (ASTM D556, ASTM D 2265, DIN ISO 2176) 4. GENERAL INFORMATION This information given below is provided for clarification and assistance in meeting the requirements of this specification. Contact for questions concerning Engineering Material Specifications. Grease approved to this
6、 specification should have the following typical properties. 4.1 LITHIUM SOAP CONTENT 30% (According to Formulation) 4.2 BASE OIL VISCOSITY (DIN 51562 T01, ASTM D 445) 4.2.1 Kinematic Viscosity at 100 C 4 - 6 mm2/s 4.2.2 Kinematic Viscosity at 40C 18 - 32 mm2/s ENGINEERING MATERIAL SPECIFICATION WSS
7、-M1C234-A2 Controlled document at www.MATS Copyright 2011 Ford Global Technologies, LLC Page 2 of 2 4.3 PENETRATION, tenths of a millimeter (ASTM D 217, DIN ISO 2137) 4.3.1 Worked Penetration, 60 strokes 275 4.3.2 Prolonged Worked Penetration, 100,000 strokes +15 4.4 OXIDATION STABILITY 10 kPa (ASTM
8、 D 942 or DIN 51808, 100hr at 99C) 4.5 EMCOR TEST 0 (DIN 51802) 4.6 WATER WASHOUT 1 (ASTM D 1264, DIN 51807 T02, 80 C) 4.7 WATER SPRAY OFF 0 (DIN 51807 T1, 90 C) 4.8 OIL SEPARATION DURING STORAGE 1.7% (ASTM D 1742, DIN 51817 or FTMS 791 C 321.3) 4.9 INTERFACE COMPATIBILITY 4.9.1 Chemical Attack to P
9、ainted Surfaces (FLTM BJ 126-01). Note: Not tested for initial application of this grease. Grease must be tested for chemical attack to painted surfaces for applications that come in contact with paint surfaces, ex. E-coat and powder coat. 4.9.2 Resistance to Stress Cracking No cracking or crazing (
10、FLTM BO 127-03) Note: Not tested for initial application of this grease. Grease must be tested for resistance to stress cracking when used for additional applications that come in contact with polymers such as PC, ABS, PC+ABS, ASA or acrylic 4.9.3 Elastomer Compatibility, NBR (DIN 53521 SRE NBR, 48
11、hrs, 110 C) 4.9.3.1 Volume Swell +2.4 4.9.3.2 Hardness Change, Durometer A Points - 1 5. SUMMARY OF REVISIONS 2011 06 28 Lot certification tests moved to requirements, all other requirements moved to general information. Added information on interface compatibility, low temperature torque, and oil separation which are requirements in WSS-M13P12-A. Removed Initial Qualifications and Ongoing Verification Plan Removed Supplement C
