Industrial oil I-5A

Industrial oil I-5A (GOST 20799-88) is a general-purpose oil that is distilled from selectively purified low-sulfur and sulfur-bearing crude oils.

It is used in various industries for lubricating commonly encountered light-duty, high-speed units and mechanisms, such as bearings and spindles of spinning and twisting machines, bearings of grinding wheel spindles on metalworking and other machines operating at rotational speeds of 15,000 to 35,000 rpm. These applications do not require special anti-oxidation and anti-corrosion properties of the oil. Additionally, I-5A oil is used for lubricating measuring instruments and other lightly loaded components. It is also used for fiber lubrication and in the production of oils, greases, rubbers, leather conditioning, pastes, mastics, window sealants, and more. Some industries utilize it as a working fluid for hydraulic systems in various construction machinery. It can be substituted with ILS-5 or I-8A oil.

Technical Specifications of Industrial Oil I-5A

Parameter Standard according to GOST (TU)
Kinematic viscosity at 40°C, mm2/s 6-8
Acid number, mg KOH/g, maximum 0.02
Ash content, %, maximum 0.005
Sulfur mass fraction in sulfur-bearing oils, %, maximum 1.0 - 1.1
Mechanical impurities, selective solvents content Absent
Water content Traces
Density at 20°C, kg/m3, maximum 870
Pour point, °C, maximum -18
Color by colorimeter TCT, TCT units, maximum 1.0
Flash point determined in an open crucible, °C, minimum 140
Oxidation stability:
increase in acid number, mg KOH/g, maximum
increase in resins, %, maximum