The performance of gear oil should meet the following requirements:

(1) good oil and extreme pressure antiwear

Oil means that the gear can effectively adsorb the lubricating oil film on the moving lubricating surface, and the wear resistance means that the gear oil keeps the moving parts to lubricate the oil film on the surface. Some gear trains often work under severe extreme pressure lubrication conditions. The pressure, sliding speed and local temperature are very high, which requires extreme pressure additives in gear oil to effectively prevent tooth surface abrasion and occlusion under high load conditions.

(2) suitable viscosity and good viscosity temperature characteristics

The viscosity of the gear oil has a great influence on the formation of oil film. Generally speaking, high viscosity gear oil can effectively prevent gear and bearing damage, reduce mechanical running noise and reduce oil leakage. Low viscosity gear oil has obvious advantages in improving mechanical efficiency, strengthening cooling and cleaning. The viscosity of all kinds of lubricating oil decreases with the increase of temperature, the smaller the decrease, the better the viscosity temperature characteristics of the lubricating oil. The change of the temperature of the automobile transmission mechanism requires a small change range of the viscosity of the automobile gear oil of the V3 parts of North Ben, and it should have a good viscosity temperature characteristic.

(3) good low temperature fluidity

Gear oil should be able to keep the necessary fluidity at low temperature. If the gear oil has wax precipitation at low temperature and the viscosity increases sharply, it can not ensure effective lubrication. In order to make the gear oil can meet the use requirements under low temperature in winter, should be added to the pour point depressant gear oil, in order to improve the low temperature fluidity.

(4) thermal oxidation stability

The performance of gear oil is deteriorated by heat or oxidation during use. Therefore, the North V3 fittings gear oil should have the ability to resist oxidation deterioration, that is, good thermal oxidation stability.

(5) good corrosion resistance and rust resistance

Anticorrosion refers to the protection of gears from corrosion. An anticorrosion additive is added to the gear oil to form a layer of protective film on the surface of the metal to prevent corrosion. Antirust is the ability to protect the gear from rust, to ensure the performance of the gear and to prolong the service life of the gear. Anti rust additives such as fatty acid salt are added to the gear oil to protect the gear from corrosion.

(6) good antifoaming

North Ben V3 accessories gear oil in the work, due to the intense agitation, oscillation will produce foam. Foam in oil is very harmful. It weakens the function of oil and reduces the efficiency of mechanical transmission. When it is serious, the oil is interrupted and the gear bearing is damaged. Therefore, the gear oil should be anti foam, and the anti bubble additive is added to the gear oil, which can quickly eliminate the foam in the oil in order to ensure good lubrication.