VNII NP-219 grease

VNIINP-219 grease (TU 38.101471-74) is similar in composition to VNIINP-207 grease, but unlike it contains molybdenum disulfide. The main performance characteristics of VNINP-219 grease: it is efficient within temperatures from -50 to + 200°C. It is used in rolling bearings of electric motors and starter-generators with increased loads and a speed of up to 10000 min-1.


Physical and chemical indicators of VNIINP-219 grease (TU 38.101471-74)

Name of the indicator Norm GOST (TU)
Appearance Homogeneous ointment with smooth structure of dark gray to black color
Effective viscosity at -30°C and mean gradient of strain rate 10 s-1 2,0
Colloidal stability, %, not more than 7,0
Content of water, % Absence
Mass fraction of free alkali, %, not more than 0,08
Drop temperature, °C, not lower than 200
Penetration at 25°C, 0,1 mm, not more than 280 - 360
Content of mechanical impurities, % Absence
Corrosion test Gray, brown or black spots do not appear
Tensile strength at 50°C, Pa, at least 120
Effective viscosity at -50 °C, Pa-s, not more than 800