The grease VNIINP-207 (GOST 19774-74 and amendment 1, 2, 3, 4) is a mix of an organic silicon liquid and synthetic hydro carbonic oil, thickened oil complex soap; contains an antioxidizing additive.
The basic operational characteristics: Waterproof, water absorbing, the raised thermo oxidizing stability, is efficient at residual pressure 666.5 Pas and temperatures from -60 °С…+200 °С. Application: bearings of a rolling of electric machines and starters-generators with frequency of rotation to 10000 mines-1.
Appearance and color: Homogeneous soft ointment from light brown to dark brown color
Effective viscosity, Pas, at -30 °C, not more than: 1400
Strength at 20 °С, Pas, not less than: 68.6
Drop temperature, °С, not lower than: —
Colloid stability under load of 300 g, %, not more than: 6
The content of free alkali in recalculation on NаОН, %, not more than: 0,15
Penetration at 25 °С, mm, 10-1: 220-250 u
Evaporation at 200 °С within 5 hours, %, not more than: 7,0
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.