Grease VNIINP – 293
instrument lubricant
Description
Grease VNII NP-293 – soft ointment gray with a pink tinge. In terms of composition similar to Lubricant VNIINP-274. Characterized in that it is made on a polymethylsiloxane fluid having protivoiznosiye worst, but the best low temperature properties.
Advantages
- Excellent frost allows to apply grease at temperatures down to – 80 ° C.
Application
Instrument lubricant VNIINP-293 can be recommended only for lightly loaded bearings with rotational speed of 1000 rev /min. When tested for frictional wear of the machine provides a small and small coefficients of friction for steel on pairs of ruby and steel on brass. Recommended for miniature rolling bearing device at temperatures up to 150 ° C and under high vacuum.
Specifications
| Indicator | Norm |
|---|---|
| Dropping point, ° C, min | 170 |
| Penetration at 25 ° C? 10-1mm | – |
| Viscosity at 0 ° C and 10 sec-1 Pa · s, more | 180 |
| Tensile Strength, Pa, at 20 ° C | 140-170 |
| Colloid stability,%, no more than | 31 |
Additional information
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