Grease VNIINP-273 (TU 38.1014767-74) is a synthetic hydrocarbonic oil solidified with inorganic thickeners. It contains antioxidizing, anticorrosive additives and the antifrictional additive.
It possesses good antiscuff properties, colloid and chemical stability. It have a soft consistence. It is efficient at temperature -20 … +120°С.
Scope: rolling and sliding bearings, ballscrew-nut transmissions, rack-and-pinion drives and screw drives, the carving connections working in the conditions of influence of radiation. A substitute — ВНИИНП-275.
Appearance and colour: —
Viscosity effective, Па.с, at 0°С, no more: 275
Viscosity effective, Па.с, at-40°S, no more: —
Strength at 20°С, the Pas, not less: 300-600
Drobfall temperature, °С, not more low: —
Colloid stability at loading 300 г, %, no more: 6
The content of free alkali in recalculation on NаОН, %, no more: —
Penetration at 25°С, mm, 10-1: 210-250
Vaporability at 150°С during 1 ч, %, 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.