Grease (TС 6.02.917-79) is a poly-methyl-phenyl-siloxane fluid thickened with colloidal graphite. The main performance characteristics of PFMS-4S grease: with rheological properties, it occupies an intermediate position between greases and pastes; increased extreme pressure properties, high thermal stability and low volatility. It is efficient within the temperature range from -30°C to +300°C and for short duration up to 400°C. It is used in aircraft friction units, low-speed rolling bearings, screw ball joint drives, threads.
Physical and chemical indicators of AMS-3 grease PFMS-4S grease (TС 6.02.917-79)
|Name of the indicator||Norm GOST (TC)|
|Appearance||Viscous pasty black mass|
|Reaction media (pH of the aqueous extract)||6 - 8|
|Content of water||Absence|
|Syneresis at a temperature of 100°C for 6 hours, %, no more||4|
|Evaporability at 300°C, 1 h, %, not more than||16|