VNIINP 207 heat-resistant grease complies with GOST 19774-74 and is a uniform and soft mixture from light brown to dark brown. It is the same in composition and properties with TsIATIM-221 grease. It includes synthetic hydrocarbon oil and organosilicon liquid. The temperature range of lubrication performance specified in the standard (from -60 to 200 ° C) is inaccurate. The lubricant retains a long time (1-3 thousand hours) performance at 180 ° C and 10,000 rpm. Short-term overheating up to 200 ° C is allowed. Lack of lubrication is the worst frost resistance. Its viscosity in the range from -30 to 50 ° C is 2-3 times higher than that of TsIATIM-221 lubricant. In low-power mechanisms, VNIINP-207 grease is used up to -40 ° C; in powerful mechanisms, it can ensure normal operation even at lower temperatures (up to -60 ° C).
Characteristics of Greases | |
Temperature operating range | -60 до 200 °С |
Purpose | |
Aircraft | All types of commercial aircraft |