PFMS-4c lubricant (TU 6.02.917-79) is a polymethylphenylsiloxane fluid thickened with colloidal graphite.
Benefits
PFMS-4s grease is intended for the lubrication of rolling bearings, ball-threaded pairs and threaded joints working for a long time at a temperature of + 300 ° C and for a short time (up to 5 hours) at + 400 ° C.
Application area
It is used in aviation friction units, low-speed rolling bearings, screw ball gears, threads.
Specifications
| Name of indicator |
Norm |
| Evaporation at a temperature of 300 ° C,% |
16 |
| Drop point, ° С, not less than |
180 |
| Penetration at 25 ° C, 0.1 mm |
175-205 |
| Strength at 20 ° С, Pa |
1000-1500 |
| Viscosity at -50 ° С and average strain rate gradient 10 s-1, Pa * s, not more than |
500 |
| Colloidal stability,%, no more than |
10 |