VNII NP-261 grease
TU 38.1011051-87
VNII NP-261 Sapphire Aviation Grease is a high-quality aircraft grease used for chassis, aircraft and helicopter screws, and wheel hubs. Buy VNII NP-261 Sapphire Aviation Grease is a high-quality but affordable heat-resistant aviation lubricant used for chassis, aircraft and helicopter screws, and wheel hubs.
VNII NP-261 Sapphire Aviation Grease is a high-quality heat-resistant aircraft grease used for chassis, aircraft and helicopter screws, and wheel hubs. This is one of the best aviation lubricant produced by Russia and has an excellent thermal resistance, and increased mechanical stability and antioxidants. This aircraft grease is also used for the lubrication of the conical roller bearings of aviation landing gear hubs within the temperature range of -60°C to 150°C, with some random surges up to 200°C.
It should be noted that at the moment, VNIINP 261 SAPPHIRE is the best aviation grease of Russian production. At the same time, the price of VNIINP 261 SAPPHIRE is significantly lower than worthy analogs. When tested, showed better results compared with grease NK-50 and French Nyco-22 Grease (Aeroshell 22 Grease).
Specifications VNII NP 261
| Index name |
Norm |
| Drop point, °C, min. |
250 |
| Penetration at 25°C, 0,1 mm |
265-295 |
| Point of break at 20°C, Pa |
240-420 |
| Viscosity at 0°C and rate of deformation average gradient 10s-1, Pa•s, max. |
7 |
| Colloid stability, %, max. |
5 |
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