The grease «?-1» (GOST 15037-69) winter nigrol solidified with petrolatum. It contains sulphur and copper naphthenate. Possesses high adhesive, conservation, antifrictional properties and water resistance.
It is efficient at temperature -20 … +50°?.
The Scope: impregnation of organic cores of steel ropes of a general purpose. A substitute is grease «?-86».
Appearance and colour: —
Viscosity effective, ??.?, at 0°?, no more: 800
Viscosity effective, ??.?, at-40°S, no more: —
Strength at 20°?, the Pas, not less: 300
Drobfall temperature, °?, not more low: 40-55
Colloid stability at loading, %, no more: —
The content of free alkali in recalculation on N???, %, no more: —
Penetration at 25°?, mm, 10-1: 340-360
The content of water, %, no more: —
Vaporability at 150°?, %, no more: —
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 mehaniko-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.
