What is VG320 gear oil?

[IslaLynn]

VG320 refers to a paraffin-grade base oil with a kinematic viscosity of 320mm2/s at 40°C. Below is relevant information about gasoline: 1. Introduction: Gasoline is a volatile, flammable hydrocarbon mixture liquid obtained through petroleum distillation and cracking, used as fuel. 2. Properties: It appears as a transparent liquid, is flammable, with a distillation range of 30°C to 220°C, mainly composed of C5-C12 aliphatic hydrocarbons and naphthenes, along with a certain amount of aromatic hydrocarbons. 3. Classification: Gasoline has a high octane number (anti-knock combustion performance) and is graded by octane number into 89, 90, 92, 93, 95, 97, and 98. Starting from January 2012, the gasoline grades 90, 93, and 97 were revised to 89, 92, and 95.

[Erica]

Speaking of VG320 gear oil, I've been working with this type of industrial lubricant for quite some time. It's practically the guardian angel specially formulated for heavy-duty gearboxes—that '320' in the viscosity grade indicates its thickness, maintaining a viscosity between 288 to 352 centistokes at 40°C. This extreme-pressure industrial gear oil excels at protecting those roaring steel beasts like crusher gearboxes in mines or transmission systems in cement plant ball mills. I've personally witnessed how it forms anti-wear films on gear surfaces, especially under low-speed, high-load conditions—the copper corrosion protection is truly impressive. But remember, never use it in truck rear axles; you'll need GL-5 certified automotive gear oil for that.

[McTalia]

Last week at the factory, I specifically studied VG320 while helping the master replace the equipment gear oil. This oil falls under the heavy-duty grade in the ISO viscosity classification system, being thicker than the common VG220. It uses a heavier base oil combined with a sulfur-phosphorus anti-wear additive package that protects gear tooth surfaces like an iron wall. What impressed me most was its ability to withstand extreme pressure conditions, especially in high-impact scenarios like the earth-shaking vibrations from steel mill rolling equipment gearboxes. By the way, it's also particular about sealing compatibility—the manual specifies fluororubber seals as the ideal match.

[SanIan]

Key points: VG320 is an ISO viscosity grade for industrial gear oils, with a viscosity range of 288-352cSt at 40°C. It features: superior extreme pressure and anti-wear protection; effective control of gearbox foam issues; excellent thermal-oxidative stability; good water separation properties; suitable for enclosed industrial gear systems. Note that its operating temperature range is typically -10°C to 150°C, with viscosity decrease not exceeding 15% in high-temperature environments. Common applications include heavy-duty equipment such as metallurgical rolling mills and mining conveyor reducers.