Oil TAP-15V (GOST 23652-79) is a mixture of a highly viscous aromatized product with distillate oil and a composition of additives that improve extreme pressure and low-temperature properties. It is used in truck transmissions and for lubrication of spur, spiral-bevel and worm gears, in which contact stresses reach 2000 MPa, and the oil temperature is 130°C. This all-season transmission oil is used in temperate climate region at temperatures up to -25°С.
Physical and chemical indicators of Transmission oil TAP-15V (GOST 23652-79)
Name of the indicator | Norm GOST (TU) |
---|---|
Viscosity: | |
Kinematic viscosity, mm2/s: | |
at 50°С | - |
at 100°С | 15,0±1 |
Dynamic viscosity, PA, at-15 (-20)°С, not more than | 180 |
Viscosity index, not less than | - |
Temperature, °С: | |
flash point in the open crucible, not less than | 185 |
pour point, °C, not more than | -20 |
Acid number, mg KOH/g, not more than | - |
Mass fraction, %: | |
mechanical impurities, not more than | 0,03 |
water | Traces |
sulfur | - |
phosphorus, not less than | - |
water-soluble acids and alkalis | Absence |
Corrosion test on plates within 3 h: | |
steel and copper at 100 ° С | Withstands |
copper at 120 ° С, not more than | - |
Ash, %, not more than | - |
Stability on the device DK - NAMI (140°С, 20 h): | |
change in Kinematic Viscosity at 100°С, not more | - |
the rate of sediment in petroleum ether, not more than | - |
The tendency to foaming cm3, not more than: | |
at 24°С | - |
at 94°С | - |
at 24°С after testing at 94°С | - |
Tribological characteristics on ChShMT: | |
Scuff index, N, not less than | 490 |
Wear index at axial load 392N, (20±5°С), 1 h, mm, not more than | - |
Welding loading, N, not less than | 3283 |
Colour, units of COP, not more than | - |
Density at 20°C kg/m3, not more than | 930 |