The VNIINP-219 (GOST 38.101471-74) composition is similar to the grease VNIINP-207 but unlike it contains a molybdenum disulfide. The basic operational characteristics: it is efficient at temperatures from -50 °С…+200 °С.
Application: bearings of a rolling of electric motors and starters-generators with the raised loadings and frequency of rotation to 9000 mines-1, ball-screw gears of flying machines.
Appearance and color: Homogeneous soft ointment from dark grey to black color
Effective viscosity, Pas, at -50 °C, not more than: 800
Strength at 50 °С, Pas, not less than: 120
Drop temperature, °С, not lower than: 200
Colloid stability under load of 300 g, %, not more than: 7
The content of free alkali in recalculation on NаОН, %, not more than: 0.08
Penetration at 25 °С, mm, 10-1: 280-360
Evaporation at 200 °С within 5 hours, %, 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.