High temperature & extreme pressure challenges for gear grease
In the world of mechanical equipment, gears are the core components of transmission systems, enduring high loads, friction, and heat. According to professional analysis in the field of mechanical lubrication (such as articles on Machinery Lubrication), traditional gear lubrication often relies on oils, but greases are increasingly favored as a highly efficient alternative. Greases consist of base oils, thickeners, and additives, forming a stable lubricating film in high-load gearboxes to prevent wear caused by direct metal-to-metal contact. However, choosing the right grease is crucial, especially in high-temperature and extreme-pressure environments. Insufficient viscosity or inappropriate additives can lead to corrosion or lubrication failure.
As a professional lubrication solutions provider, FRTLUBE's gear grease series is designed to address these pain points, combining scientific formulations to provide reliable protection.
High Temp Challenge
High temperatures are the primary enemy of gear lubrication.
In industrial applications, gearbox temperatures often soar to over 200°C or even higher, which can cause ordinary grease to thin, evaporate, or decompose, leading to the rupture of the lubricating film.
FRTLUBE's BG828A high-temperature polyurea gear greaseuses synthetic PAO base oil and special polyurea additives , specifically designed for high-temperature, high-load gearboxes. It maintains long-term stability over an operating temperature range of -40°C to 220 °C, and can even withstand short-term peak temperatures up to 250 °C. This performance stems from advanced polyurea composite thickening technology; the high dropping point of the Polyurea Grease ensures consistency and stability under thermal stress.
For example, in heavy machinery such as mining equipment or wind turbines, BG828A can effectively inhibit oxidation and thermal degradation, extend gear life, and avoid jamming or failure caused by high temperature.
Extreme Pressure (EP) Performance
Extreme pressure (EP) performance is another major highlight of FRTLUBE gear grease.
Gears often face heavy loads and impacts during operation, which can easily lead to micro-welding or peeling on the metal surface. Multi-purpose EP greases typically contain extreme pressure additives to build a protective layer, but their potential corrosion of soft metals should be noted.
FRTLUBE's BG828A high-temperature polyurea grease incorporates high-efficiency EP additives, enabling it to withstand high-pressure environments while ensuring compatibility.
BG828A's synthetic PAO base oil formulation offers superior anti-wear and load-carrying capacity, making it suitable for high-speed gear systems and reducing the coefficient of friction by up to 20% or more. It is resistant to hot and cold water flushing, exhibits outstanding extreme pressure performance under heavy loads, and avoids the risk of corrosion. These properties make BG828A grease stand out in automotive transmissions or industrial gears, protecting gears from pitting and fatigue damage.
Grease doesn't just lubricate; it also provides an extra layer of protection.
In both open and closed gear systems, BG828A adheres evenly, preventing rust and wear. Based on real-world application feedback, using BG828A can reduce gear wear by 20 % -30 % and extend maintenance intervals. Suitable base oil viscosity (most FRTLUBE products are 220 cSt) and the appropriate NLGI #2 grease consistency grade maintain a lubricating film under high loads, ensuring efficient equipment operation.
Finally, FRTLUBE high-temperature Gear Grease combines science and practice to provide customized solutions for challenges such as high temperature and extreme pressure.







