Transmission oil TSP-10

TSP-10 oil (GOST 23652-79) is made of low-sulfur oils, while using a high-viscosity residual deasphalted component and a low-viscosity distillate component with a low pour point. In addition to the EP additive, the oil contains a depressant additive. It may be used during all seasons in northern regions and as a winter one in temperate climate region to lubricate spur, spiral-bevel and worm gears operating at contact stresses up to 1500-2000 MPa and oil temperatures up to 100-110°C.

Physical and chemical indicators of Transmission oil TSP-10 (GOST 23652-79)

Name of the indicator Norm GOST (TC)
kinematic viscosity, mm2/s at 100°С, not less than 10,0
dynamic viscosity, PA, at-45 (-35)°С, not more than 300
Viscosity index, not less than 90
Temperature, °С:
flash point in the open crucible, not less than 128
pour point, °C, not more than -40
Acid number, mg KOH/g, not more than -
Mass fraction, %:
mechanical impurities, not more than 0,02
water Traces
sulfur (chloride), not less than 1,6
phosphorus, not less than -
Corrosion test on steel and copper plates Withstands
Tribological characteristics on ChShMT:
Scuff index, N, not less than 470
Wear index at load 393N, (20°С), 1 h, mm, not more than -
Welding loading, N, not less than 3479