ILS-5 oil

ILS-5 oil is a distilled oil derived from sulfuric crude oils that undergo deep selective refining with antioxidant, anti-wear, anticorrosive, and antifoaming additives. It is designed for high-speed spindle units of metalworking machines. ILS-5 oil is used for lubricating lightly loaded high-speed mechanisms such as spindles, bearings, and related connections. ILS-5 oil is economically most feasible to use instead of viscosity-matched oils without additives, such as I-5A and I-8A oils.

Technical specifications of industrial oil ILS-5

Indicator name Standard according to GOST (TU)
Kinematic viscosity at 40°C, mm2/s 4.1 - 5.1
Acid number, mg KOH per 1 g of oil, not more than 1.0
Viscosity index, not less than -
Ash content, %, not more than 0.2
Presence of mechanical impurities None
Water content None
Density, kg/m3, not more than 850 (880)
Pour point, °C, not higher than minus 15
Color on the Lovibond scale, units Lovibond, not more than 1.5
Flash point, determined in an open crucible, °C, not lower than 110
Mass fraction, %:
Zinc, not less than
 0.04
Sulfur, not more than
 0.9
Foaming tendency: foam stability, cm3, not more than:
at 24°C
 50/5
at 94°C
 50/5