VNIINP-271 grease - highly specialized frost-resistant grease. It is a soft beige ointment. Some batches of VNIINP-271 grease may have a purple hue. Lubrication provides low friction moments of rolling bearings at temperatures up to -50 ° C.
Application area
It is recommended for use in friction units of electric machines at temperatures from -60 to 120 ° C.
Due to the manufacture of ester type synthetic oil and the presence of anti-wear additives, it can be used in rolling bearings with high contact loads, including gyroscope bearings.
VNIINP-271 grease is also used in optical instrumentation, for example, for lubricating high-speed elements of a curtain shutter of a camera, but only in nodes isolated from optical parts.
Benefits
- Short-term operable in friction pairs titanium-bronze under loads up to 36 MPa (360 kgf / cm2);
- When tested on a friction machine in a pair of steel-brass, the antiwear properties were low. Mediocre results were also obtained when testing at the Hysteresis bench at 150 ° C;
- Due to the toxicity of tricresyl phosphate, which is part of the lubricant, it is necessary to strictly observe safety rules when working with it.
Specifications
| Name of indicator |
Norm |
| Drop point, ° С, not lower than |
170 |
| Penetration at 25 ° C, × 10-1mm |
310-340 |
| Viscosity at 0 ° С and 10с-1, Pa · s, not more than |
75 |
| Strength, Pa, at 20 ° С |
100-200 |
| Colloidal stability,%, no more than |
35 |