SEDA grease (TC 38.1011242-89) - is composed of esters and calcium soap thickened complex, contains antiwear and antioxidant additives. Grease increases the swelling capacity of nitrile and siloxane-based rubbers. SEDA grease is characterized by low volatility, good lubricating and low temperature properties.
SEDA grease is a complex calcium antifriction grease SEDA is used in friction units of electric and starter generators operating at temperatures from - 60 to 180°C. SEDA grease was developed as an alternative to the VNII NP-207. VNII NP-281 grease and, in comparison with it and VNII NP-207, Tsiatim-221 greases at a temperature of 120-130°C, provides 2.5-3.0 times longer service life. SEDA grease is included in the range of greases in accordance with GOST 18241-90.
Physical and chemical indicators of SEDA grease (TC 38.1011242-89)
|Name of the indicator||Norm GOST (TC)|
|Appearance||Smooth ointment of light yellow to brown colour|
|Drop temperature, °C, not lower than||200|
|Tensile strength at 50°C, Pa, not less than||250|
|Effective viscosity at -50°C and mean gradient of strain rate 10 s-1, Pa, not more than||2000|
|Colloidal stability of allocated oil, %, not more than||15,0|
|Evaporability at 150°C, 1h, %, not more than||2,0|
|Corrosive influence on metals||Withstands|
|Content of water||Absence|
|Content of mechanical impurities with a diameter more than 0,1 mm||Absence|
|Content of free organic acids calculated as mg KOH/g, not more than||2,0|