VO-12 oil

VO-12 Oil

VO-12 Oil (TU RM-80-4-95) is a year-round aviation oil designed for the thrust bearings and bushings of helicopter rotors. It was developed as a replacement for VNIINP-25 oil and is suitable for use at temperatures ranging from +60°C to -50°C. The oil is a blend of synthetic hydrocarbon and diester oils with a complex of additives.

Technical characteristics of aviation oil VO-12 (TU RM-80-4-95)

Parameter name Standard according to GOST (TU)
Kinematic viscosity, mm2/s:
at 100°C, not less than 12
at -30°C, not more than 15000
Acid number, mg KOH/g, not more than 0.08
Flash point, °C:
open cup, not less than 240
pour point, not higher than -54
Water-soluble acids and alkalis, mechanical impurities Absent
Viscosity index, not less than 120
Ash content, %, not more than 0.005
Tribological characteristics on the four-ball machine at (20±5)°C:
Critical load, N, not less than 686
Wear index at axial load of 196 N, not more than 0.7