1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2010 03 25 N-STATUS Replaced by WSS-M13P13-A L. Schmalz, NA 2004 05 25 Revised Revised format 2000 01 31 Activated H. Chambers Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 1 of 2 GREASE, LITHIUM 12-HYDROXY
2、STEARATE, MOLYBDENUM WSS-M1C259-A1 DISULFIDE ADDITIVE LONG LIFE LUBRICATION, CONSTANT VELOCITY JOINT NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is an NLGI Grade 1 - 2 lubricating grease consisting of refined mineral oils, lithium 12-hydroxystearate thickener an
3、d molybdenum disulfide added to give the desired characteristics of a long life lubricant. The grease shall be a homogeneous product, free from oil separation, abrasive fillers, and shall be noncorrosive to lubricated parts in service. 2. APPLICATION This specification was released originally for gr
4、ease used for automotive components as a long life lubricant for constant velocity joints in an IRS application. 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-M
5、99P1111-A). Part producers using this material in their products, must use Ford approved materials and must conform to a process control plan which has been approved by STA and/or the relevant Materials Activity 3.4 COLOR Black 3.5 LITHIUM 12-HYDROXYSTEARATE CONTENT 6.5 8% (ASTM D 128) 3.6 MOLYBDENU
6、M DISULFIDE CONTENT, Min 2.0% (FLTM AJ 106-02 or equivalent) TOTAL CONTENT OF SOLID LUBRICANTS, Min 3.0% 3.7 MINERAL OIL REQUIREMENTS (Analysis to be done on aliquoted oil samples prior to mixing) 3.7.1 Viscosity at 40 C 100 - 120 mm2/s (cSt) (ISO 3104/ASTM D 445) 3.7.2 Viscosity at 100 C 9 - 11 mm2
7、/s (cSt) (ISO 3104/ASTM D 445) 3.7.3 Viscosity Index 55 75 (ISO 2909/ASTM D 2270) ENGINEERING MATERIAL SPECIFICATIONWSS-M1C259-A1 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 2 of 2 3.7.4 Flash Point, min 220 C (ISO 2592/ASTM D 92) 3.8 DROPPING POINT as received
8、 Min 170 C (ASTM D 2265) 3.9 CONSISTENCY STABILITY (ISO 2137/ASTM D 217) 3.9.1 60 Strokes Worked 280 310 (6.4 mm diameter hole) 3.9.2 1 x 105 Strokes Worked, Max 0 to 30% increase over (6.4 mm diameter hole) 60 stroke value 3.10 OXIDATION STABILITY (ASTM D 942) 3.10.1 Pressure Drop in 500 h, Max 10
9、0 kPa 3.10.2 Total Acid Number, Max 3.0 (From Samples in 3.10.1) 3.11 WATER CONTENT, Max 0.05% (ISO 3733/ASTM D 95) 3.12 OIL SEPARATION, Max 19 mL (ASTM D 1742 modified to measure mL after 96 h) 3.13 FOUR-BALL EXTREME PRESSURE PROPERTIES (ASTM D 2596) 3.13.1 Load Wear Index, Min 55 kgf 3.13.2 Weld Point, Min 400 kg 3.14 CORROSION Pass (ASTM D 1743)
