The grease VNIINP-235 (TOR 38.101297-78) is an organic liquid thickened with an organic thickening agent. The basic operational characteristics: viscosity of grease slightly depends on speed of deformation. It possesses the high thermal and low colloid stability, good antiscuffing properties.
It is efficient at residual pressure 666.5 Pas and temperatures from -60 … +250 °С. Application: rolling bearings.
Appearance and color: Homogeneous ointment of smooth structure of black color
Effective viscosity, Pas, at 40 °С, not more than: 126
Effective viscosity, Pas, at -50 °C, not more than: 1.3
Strength at 80 °С, Pas, not less than: 290
Drop temperature, °С, not more low: —
Colloid stability under load of 300 g, %, not more than: 6.5
The content of free alkali in recalculation on NаОН, %, not more than: —
Penetration at 25 °С, mm, 10-1: —
Evaporation at 200 °С within 1 hour, %, not more than: 0.8
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.
