Grease VNIINP – 258
aviation lubricant
Description
Rolling electric machines, hinges and a pair of sliding devices of various single action. Substitute – VNIINP 257
.
Grease VNII NP-258 – silicone fluid thickened with modified silica gel. It characterized as cold-resistant, has low water resistance. Efficient in vacuo to a re 1 Pa or lower and at a temperature of -50 … + 115 ° C. Rolling electric machines, hinges and a pair of sliding devices of various single action. Substitute -. VNIINP-257
Applications
Lubricant recommended for rolling bearings electrical machines at temperatures from -50 to 115 ° C, pressure of 1 MPa. Provides bearings work in these conditions for 500 hours. It is also used in the hinges and sliding pairs of different single-acting devices. Obvious possibility of applying lubricant at pressures up to 10 PAP and likely at higher temperatures. Grease VNII NP-258 – one of the most expensive lubricants. It is packaged in glass syringes capacity of about 100 cm3 jar or up to 200 g
Fixed warranty storage period lubricant container -. 1 year. It is expected to increase.
Rolling electric machines, hinges and a pair of sliding devices of various single action. Substitute – VNIINP 257
.
Grease VNII NP-258 – silicone fluid thickened with modified silica gel. It characterized as cold-resistant, has low water resistance. Efficient in vacuo to a re 1 Pa or lower and at a temperature of -50 … + 115 ° C. Rolling electric machines, hinges and a pair of sliding devices of various single action. Substitute -. VNIINP-257
Specifications
| Indicator | Norm |
| Tensile strength at 20 ° C, Pa, at least | 100 |
| Viscosity at 0 ° C and an average strain rate gradient 10c-1 in Pa · s, more | 70 |
| Colloid stability,%, no more than | 10 |
Additional information
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