TRUEGARD Gear Oil EP 320 - 5 Gallon Pail

This oil is formulated for heavy-duty, continuous operation as well as shock-loading conditions on all types of industrial steel and bronze gearing. Its ISO 320 viscosity grade also makes it particularly well suited for worm gear applications.

ISO 320 is a high-viscosity grade, meaning it provides a thick lubricating film ideal for worm gears and heavily loaded gear systems. Lighter grades in the TRUEGARD Gear Oil line are recommended for highly loaded bearings where extreme pressure properties are needed but a thinner oil is required.

EP stands for Extreme Pressure - the oil contains additives that maintain a protective film under high loads and sudden shock loads where standard gear oils would break down. This makes it suitable for demanding industrial applications that exceed what conventional oils can handle.

Yes. TRUEGARD Gear Oil EP 320 achieves its extreme pressure lubricity without the use of active sulfur, which means it can safely lubricate bronze gearing without risk of chemical staining or corrosive attack on yellow metal components.

The oil's superb oxidation inhibition and resistance to viscosity loss give it exceptional high-temperature stability, which helps it maintain consistent performance and extend drain intervals in continuous heavy-duty operations where heat accelerates oil degradation.

Yes, the formulation includes both rust protection and anti-foam properties. Rust inhibitors protect gear and bearing surfaces from moisture-induced corrosion, while anti-foam additives help maintain a stable, consistent lubricating film even under turbulent operating conditions.