The grease VNIINP-293 (TOR 38.101604-76) is an organic silicon liquid thickened with lithium soap of stearin acid and acids of the hydrogenated castor oil.
It possesses low colloid and high thermal stability, satisfactory wear-protective properties.
The grease VNIINP-293 is efficient in deep vacuum and at temperatures from -60 °С…+150 °С. The application: small-sized ball-bearings with small loadings and starting efforts. The substitute product is VNIINP-274, VNIINP-286.
Appearance and color: —
Effective viscosity, Pas, at 0 °С, not more than: 180
Effective viscosity, Pas, at -30 °C, not more than: —
Strength at 20 °С, Pas, not less than: 140-170
Drop temperature, °С, not lower than: 170
Colloid stability under load, %, not more than: 31
The content of free alkali in recalculation on NаОН, %, not more than: —
Penetration at 25 °С, mm, 10-1: —
Evaporation at 150 °С, %, 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.