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What is automotive gear oil

Release time:

2022-04-25

Gear oil is mainly based on petroleum lubricating oil base oil or synthetic lubricating oil, and is a kind of lubricating oil prepared by adding extreme pressure anti-wear agent and oily agent. It is mainly used in various gear transmission devices, such as transmission and drive axle, to prevent tooth surface wear, abrasion, sintering, etc., prolong its service life, improve transmission efficiency and reduce fuel consumption.

Vehicle gear oil additive manufacturers


Gear oil mainly forms an oil film on the meshing surface of the gear. It has the functions of optimizing gear friction and reducing wear, and at the same time, it has the functions of heat dissipation, cleaning residue, noise reduction, and anti-corrosion.
Mainly composed of base oil and various additives, mainly composed of base oil (accounting for 70-95%), functional compounding agent (3-20%), viscosity index improver (accounting for 0-15%) and pour point depressant ( 0-2%) composition.
1. Base oil

Mineral base oil: As the most common base oil, it is a mixture of various components in petroleum refined by a series of physical refining processes. According to different boiling points, it can be cut into fractions of various viscosity grades, which has a great impact on the performance of lubricating oil. Influence.
Base oil properties are critical to lubricant quality, affecting oil solubility (transmission cleanliness, seal compatibility, formulation stability), oxidation stability (deposit formation, viscosity increase, acid formation, metal corrosion), viscosity (low temperature fluidity, anti-wear protection, energy loss, cooling efficiency), oil surface activity (foaming, air release, emulsification) and volatility (lubricating oil consumption, viscosity increase, deposit formation).

2. Automotive gear oil additives

The additive has two major functions of protecting the base oil and protecting the components, delaying the decay and decomposition of the base oil, forming a protective film on the metal surface to reduce friction and wear, and preventing the reaction on the metal surface. Such as extreme pressure antiwear agents, dispersants, friction modifiers, antioxidants, copper corrosion inhibitors, rust inhibitors and antifoaming agents.
 

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