1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions Rev. 1 2010 11 18 Revised See Summary of Revisions A. Wedepohl, NA 2004 06 25 Activated T. Covert Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 1 of 3 GREASE, LITHIUM COMPLEX SOAP, WSS-M1C267-A1 WHEEL BEARI
2、NGS 1. SCOPE The material defined by this specification is a NLGI Grade 2 grease consisting of a paraffinic mineral oil and a lithium complex soap that meets NLGI GC/LB. 2. APPLICATION This specification was released originally for grease used to provide lifetime lubrication for wheel bearings with
3、an operating range of - 40 to 175 C. 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 COLOR Green (Visual) 3.3 PENETRATION, tenths of a millimeter
4、 (ASTM D 217, DIN ISO 2137) 3.3.1 Unworked Penetration 265 295 3.3.2 Worked Penetration, 60 stroke 265 295 3.4 DROPPING POINT 246 C min (ASTM D 2265, DIN ISO 2176) 3.5 ROLL STABILITY, tenths of a millimeter (ASTM D 1831, ASTM D 217) 10% max change in consistency from worked value 4. GENERAL INFORMAT
5、ION The information given below is provided for clarification and assistance in meeting the requirements of this specification. Grease approved to this specification should have the following typical properties. 4.1 LITHIUM SOAP CONTENT (According to formulation) 7% by weight ENGINEERING MATERIAL SP
6、ECIFICATIONWSS-M1C267-A1 Printed copies are uncontrolled Copyright 2010 Ford Global Technologies, LLC Page 2 of 3 4.2 PENETRATION, tenths of a millimeter (ASTM D 217, DIN ISO 2137) 4.2.1 Unworked Penetration 265 295 4.2.2 Worked Penetration, 60 strokes 265 295 4.2.3 Prolonged Worked Penetration, 100
7、,000 strokes +/- 40 Change from 60 stroke value 4.3 BASE OIL VISCOSITY (ASTM D 445, DIN 51562, ISO 3104) Mineral oil viscosity at 40 C 135 165 mm2/sec 4.4 LOAD CARRYING PROPERTIES 4.4.1 Timken OK Load 20.4 kg (ASTM D 2509) (45 lbs ) 4.4.2 Ball Wear Test, Wear Scar dia. 0.5 mm (ASTM D 2266, DIN 51350
8、 T 5, 40 kg, 1200 rpm, 75 C, 1 h) 4.4.3 4-Ball EP Weld Point 250 kg (ASTM D 2596, DIN 51350 T 4) 4.4.4 4-Ball Load Wear Index 40 (ASTM D 2596) 4.5 OXIDATION STABILITY (ASTM D 942 Oxygen Bomb or DIN 51808) Pressure Drop in 500 hours 69 kPa 4.6 CORROSION PROTECTION Pass (ASTM D 1743) 4.7 COPPER STRIP
9、CORROSION 1A (ASTM D 4048) 4.8 WATER WASHOUT 5% (ASTM D 1264, DIN 51807 T02) 4.9 OIL SEPARATION DURING STORAGE 3% (ASTM D 1742, DIN 51817 or FTMS 791 C 321.3) 4.10 WHEEL BEARING LEAKAGE LOSS 2 g (ASTM D 1263, 163 C, 60 g pack) 4.11 HIGH TEMPERATURE WHEEL BEARING LIFE 100 hours (ASTM D 3527) 4.12 HIG
10、H TEMPERATURE WHEEL BEARING LEAKAGE (ASTM D 4290) 4 grams ENGINEERING MATERIAL SPECIFICATIONWSS-M1C267-A1 Printed copies are uncontrolled Copyright 2010 Ford Global Technologies, LLC Page 3 of 3 4.13 ELASTOMER COMPATIBILITY (ASTM D 4289, DIN 53505, SAE AMS 3217/2A NBR-L, 70 hrs, 150 C) 4.13.1 Volume
11、 Swell +15 4.13.2 Hardness Change, Durometer A Points - 8 4.14 ELASTOMER COMPATIBILITY (ASTM D 4289, DIN 53505, SAE AMS 3217/3B CR 70hrs, 150 C) 4.14.1 Volume Swell + 16 4.14.2 Hardness Change, Durometer A Points - 4 4.15 FRETTING WEAR, weight loss 7 mg (ASTM D 4170) 4.16 LOW TEMPERATURE TORQUE 10 Nm (ASTM D 4693, 40 C, 60 seconds) 5. SUMMARY OF REVISIONS 2010 11 18 Lot certification test moved to requirements, all other characteristics placed in General Information. Replaced specification limits with typical property data where possible in General Information.
