VNIINP-270 grease - ointment of gray or black color. In composition, properties, application features it is close to VNIINP-257. It is distinguished by the use of another brand of polysiloxane liquid for its manufacture, subjected to special processing, after which its evaporation in vacuum decreases.
Benefits
It has low volatility, high colloidal stability, low water resistance, good extreme pressure properties. It is efficient in vacuum up to 10 μPa and at a temperature of -60 ... + 80 ° С
Application area
Ball bearings of low-power electric motors with a rotation speed of up to 10,000 rpm, bearings of electric motors of potentiometers and gyroscopes. Substitute - VNIINP-257.
Specifications
| Name of indicator |
Norn |
| Drop point, ° С, not lower than |
175 |
| Viscosity at 0 ° С and 10с-1, Pa · s, not more than |
40 |
| Strength, Pa, at 20 ° С |
150 |
| Colloidal stability,%, no more than |
160 |