VNIINP-279 grease (GOST 14296-78) is a synthetic hydrocarbon oil thickened with modified silica gel. Main performance characteristics: good antiwear characteristics, high mechanical, thermal, colloidal stability and low protective properties; stable when working in aggressive environments. The grease has the sealing properties. It is efficient in contact with aggressive environment at temperature ranges from - 50°C to + 50°C and air at temperatures ranges from - 50°C to + 150°С.
It is used in rolling and sliding bearings, threaded connections, connectors, valves and other parts operating in air in aggressive environment.
Physical and chemical indicators of VNIINP-279 grease (GOST 14296-78)
|Name of the indicator||Norm GOST (TC)|
|Appearance||Light homogeneous transparent ointment with smooth structure|
|Effective viscosity, Pa-s, at -30 °C and mean gradient of strain rate 10 s-1, not more than||2300|
|Tensile strength at +50°C, Pa, at least||100|
|Colloidal stability of allocated oil, %, not more than||5,2|
|Corrosive influence on metals||Withstands|
|Content of mechanical impurities (1 ml of grease)|
|with a diameter from 0,025 to 0,075 mm, not more than||960|
|with a diameter more than 0,075 mm||Absence|
|Content of water||Absence|