Sapfir (VNII NP-261)

TU 38.1011051-87

Sapfir (VNII NP-261) is used for lubrication of aircraft landing gear hubs conical roller bearings within the temperature range from -60°C to +150°C, with occasional short-time surges of up to 200°C.

Index nameNorm
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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