The graphitic grease (GOST 3333-80) is general purpose grease. It contains high-viscosity petroleum oil, thickened oil calcium soap with addition of 10 % of graphite.
The basic operational characteristics: it is efficient at temperatures from -20…+70°?; it is supposed to application at temperature lower than -20 °C in springs and similar devices. Application: friction assemblies of sliding of heavy duty slow-speed mechanisms; springs, suspension brackets of tractors and the machines, open tooth gearings, support of chisel chisels, etc.
Appearance and color: Homogeneous ointment from dark brown to black color
Effective viscosity, Pas, at 0 °?, not more than: 100
Effective viscosity, Pas, at -40 °C, not more than: —
Strength at 50 °?, Pas, not less than: 100
Drop temperature, °?, not lower than: 77
Colloid stability under load, %, not more than: 5
The content of free alkali in recalculation on N???, %, not more than: —
Penetration at 25 °?, mm, 10-1: 250
Evaporation at 150 °?, %, not more than: —
Data on operational temperatures represent values, which are guided by a structure of lubricants, and also on a scope and technology of use. Depending on a kind of mechanical-dynamic loading lubricants change the consistence, conditional viscosity or viscosity at various temperatures, pressure and duration of operation. These changes of indicators can affect work of components.
