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The gear oil is generally required to have the following six basic nature
time:2016-05-03 13:51

1. proper viscosity and good viscosity-temperature property, viscosity gear oil is the most basic performance.Viscosity, the formation of lubricating film thicker, the load resistance is relatively large.

2. Sufficient pressure resistance

Extreme compressive resistance is the most important property of gear oil, and the main characteristic is the performance of tooth surface wear, abrasion and adhesion. As gear load in more than 490 mpa, generally about 2942 mpa and hyperbolic tooth surface load, so as to prevent oil film rupture caused by tooth surface wear and scratches, generally in the gear oil extreme pressure and anti-wear agent, used the sulfur - chlorine, sulfur, phosphorus - chlorine, sulfur - - p - zinc chloride, sulfur, lead and sulfur - p - lead additives. Thi-phosphorous or sulfo-nitrogen additives are commonly used.

3. Good emulsion resistance

The emulsifying deterioration of the gear oil will seriously affect the formation of the lubricating oil film and cause the abrasion and wear.


4. Good oxidation stability and thermal stability

Good thermal stability ensures the service life of oil products.

5. Good anti-bubble

The resulting foam can not disappear quickly and will affect the formation of oil film in the gear meshing place. The entrainment foam reduces the actual working oil content and affects the heat dissipation.


6. Good rust prevention and corrosion resistance

Corrosion and corrosion not only damage the geometry and lubrication state of gears, but corrosion and corrosion products can further cause the gear oil to deteriorate and produce a vicious cycle.

The gear oil should also have other - some properties such as adhesiveness, shear stability and so on. At present, most of China's heavy load industrial gear oil is based on sulfur and phosphorus, which is equivalent to the quality of similar products abroad.

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