Grease VNIINP – 223
instrument lubricant
Description
Applications
Lubricants VNIINP-223 and VNIINP-228 have been designed to gyroscopes, but also apply to other qualified mechanisms. These lubricated pivot bearings, suspension, ratchet wheel devices, and precision bearings at high-speed machine tool spindles D * n * to 500,000 mm /min. Much oil otpressovyvaemost explained by the peculiarities of lubricant structure rather than poor colloidal stability. Complex sodium soap, included in its composition, less soluble in water than sodium soaps are conventional.
However, lubrication VNIINP-223 can not be considered waterproof. In an aqueous medium at 20 ° C in lubrication, a white plaque at 100 ° C is completely emulsified. But for gyroscopic grease water resistance has no basic value.
The structure of the instrument lubricant VNIINP-223 include anti-wear additive.
The additive is poisonous, so let not only the standard when handling grease precautions must be taken (on the container must be the inscription «Toxic»).
Grease VNIINP-223, but also according to TU 38.101418-73. The composition and properties of lubricants produced by the standard and technical conditions are identical. In technical terms only provided some additional lubrication tests: definition of penetration, syneresis and evaporation (repealed by GOST 2633). Since 1979, some of these tests, carried out on obsolete methods, replaced by more modern methods that virtually eliminate the differences in the requirements of the standards and technical conditions.
Advantages
- Lubrication VNIINP-223 is characterized by a high degree of purification;
- Lubrication VNIINP-223 operable at a residual pressure of 13.3 Pa and a temperature of -45 … + 150 ° C. Special high-speed ball bearings with rotational speed of 60000 min-1, bearings and low-power gearings.
Specifications
| Indicator | Norm |
|---|---|
| Dropping point, ° C, min | 180 |
| Penetration at 25 ° C? 10-1mm | 320-370 |
| Viscosity at 0 ° C and 10 sec-1 Pa · s, more | 60 |
| Tensile Strength, Pa, at 20 ° C | 150 |
| Colloid stability,%, no more than | 15 |
Additional information
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