VNII NP-246 grease
Lubrication VNIINP-246 is a high-temperature, high-vacuum antifriction lubricant obtained by thickening the silicone fluid with a pigment. Has high thermal stability, good anti-seize characteristics, low volatility, frost resistance.
Used in medium-speed rolling bearings and low-power gears. It is operable in vacuum up to 1.33 • 10-8 Pa (10-10 mm Hg) and at temperatures from -60 ° С to + 250 ° С.
Substitutes: VNIINP-235, VNIINP-231.
| Penetration at 25 ° C, × 10-1mm |
345-385
|
| Viscosity at 0 ° С and 10с-1, Pa · s, not more than |
60
|
| Strength, Pa, at 20 ° С |
400-600
|
| Colloid stability,%, not more than |
10
|
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