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VNIINP-261 greasing Sapphire
  • VNIINP-261 greasing Sapphire

VNIINP-261 greasing Sapphire

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Country of manufacture:Russia
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VNIINP-261 greasing Sapphire (TU 38.1011051-87) — aviation greasing . Main operational characteristics: high thermal stability, mechanical and anti-oxidizing stability. It is efficient at a temperature of-40 … +150 °C, it is short-term to +200 °C. 

VNIINP-261 greasing Sapphire is used in gear connections of air screws of helicopters and planes. In addition greasing Sapphire is applied in hard loaded conic roller bearings and threaded connections of the chassis of aircraft. At the moment is the best domestic aviation greasing. Possesses high anti-oxidizing and mechanical stability and outstanding thermal stability. Temperature range of use of VNIINP-261 greasing from-40 … +150 °C. Greasing maintains short-term warming up to plus 200 °C. At tests at the TsKB-60 stand shows the best results not only on comparison with NK-50 greasing but also in comparison with the French Nyco-22 greasing (Aeroshell 22). 

Name of an indicator Norm in accordance with GOST (TU)
Appearance and color Smooth ointment from blue-gray till black color. The greenish shade is allowed.
Temperature of drop falling, °C, not less 250
Viscosity is effective, Pa.s, at -40 °C, no more 3000
Strength, Pa, at 50 °C 300-800
Colloidal stability, % of the emitted oil, no more 10
Corrosive attack to metals maintains
Evaporability at 150 °C, %, for 1 h, no more 3,0
Content of water absence
The main
The producer - Rosneft
Country producer Russia
Use of greasing Aircraft equipment
Type of lubricant Semi-synthetic
Aggregate state of greasing Semi-fluid
Color Gray
Country of manufacture:Russia
Information is up-to-date: 19.10.2020
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