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Complex supplies for industrial companies

VNII NP-220 grease

Lubrication VNIINP-220 is a silicone fluid thickened with stearate and calcium acetate with the addition of molybdenum disulphide. Contains antioxidant additive.
High-temperature lubrication VNIINP-220 is used in loaded bearings of electric machines and other friction units operating at 100 ° C and a speed of 6000 rpm.
It is efficient in the temperature range from -60 to + 150 ° С
.

 

Name of indicators VNIINP-220 grease


Norm according to GOST (TU)

Appearance and color Homogeneous, smooth, smooth, smooth-colored ointment
Viscosity effective, Па.с:
at 20 ° C and an average gradient of the strain rate of 100 s-1, not more than

14

at -50 ° C and an average gradient of the deformation rate of 10 s-1, not more than

900

Shear strength at Pa, at 50 ° С, not less than

120

Water content,%

Absence of

Evaporation at 150 ° C, 1 h,%, not more than

2,5

Colloid stability at a load of 3N,% of the extracted oil, not more than

8,0

Corrosion effect on metal Withstands
The content of free alkali in terms of NaOH,%, not more than

0,15

 

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