Oil I-50A (GOST 20799-88) is a distillate oil or a mix of distillate oil with residual from sulphurous and low-sulphur petroleums of selective clearing.
It used as working liquids in hydraulic systems of the machine-tool equipment, automatic transfer lines, presses, for greasing it is easy — also middlingloaded tooth gearings, slideways bearing and sliding of machine tools where it is not required special oils, and other mechanisms. Most widely apply oil ?-50? in hydraulic systems of the industrial equipment, to the building, road and other machines working on open air.
Application specified oils in those or other mechanisms depends on their viscosity: in process of its increase in oil use in more loaded and less high-speed mechanisms. It is possible to replace the specified oil with alloyed oils ???-18, ???-30, ???-38 and ???-49 (THAT 38) corresponding viscosity.
Density at 20°?, kg/m3, no more: 910
Viscosity kinematic, cSt, at 40°?, not less: 90-110
Viscosity kinematic, cSt, at 20°?, not less: —
Viscosity kinematic, cSt, at-60°S, not less: —
Ash percentage, %, no more: 0,005
Acid number, mg the GAME/G, no more: 0.05
Flash temperature, in an open crucible, °C, not more low: 225
Hardening temperature, °C, not above:-15
Data on operational temperatures represent values which are guided by a structure of lubricants, and also on a scope and technology of use. Depending on a kind of mehaniko-dynamic loading lubricants change the consistence, conditional viscosity or viscosity at various temperatures, pressure and duration of operation. These changes of indicators can affect work of components.
