7019-1-extreme-pressure-high-temperature-lubricating-grease

7019-1-extreme-pressure-high-temperature-lubricating-grease

Great Wall® 7019-1 Extreme Pressure High-Temperature Grease

Heavy-Load Protection and Long Service Life for High-Temperature Industrial Applications

Great Wall® 7019-1 Extreme Pressure High-Temperature Grease is a high-performance industrial lubricant specially developed for equipment operating under high temperature, heavy load, and demanding service conditions. It is formulated with refined semi-synthetic base oil thickened by a composite soap system and fortified with a balanced package of extreme pressure (EP), anti-wear, antioxidant, and rust-preventive additives. This advanced formulation ensures reliable lubrication, excellent load-carrying capability, and extended service life in severe industrial environments.

According to consistency grade, the product is available in NLGI 00, 0, 1, 2, and 3, enabling it to meet a wide range of lubrication requirements—from centralized lubrication systems to heavily loaded bearings and transmission components. The grease complies with Q/SH303 151-2004, reflecting stable quality and suitability for high-temperature industrial use.

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Product Performance Overview

Great Wall® 7019-1 is designed to provide consistent lubrication and mechanical protection where conventional greases are prone to failure. Its composite soap thickener offers excellent thermal stability, allowing the grease to maintain structural integrity and lubricating film strength under elevated temperatures. The semi-synthetic base oil ensures good flow characteristics at low temperatures while providing sufficient viscosity and oil film thickness at high operating temperatures.

The inclusion of extreme pressure and anti-wear additives enables the grease to withstand high contact stresses, effectively reducing metal-to-metal contact, friction, and wear. This makes 7019-1 particularly suitable for bearings and transmission components operating under medium to heavy loads and continuous thermal stress.

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Key Performance Features

Excellent Extreme Pressure and Anti-Wear Performance
7019-1 grease delivers strong load-carrying capability, forming a protective lubricating film under high contact pressure. This reduces surface fatigue, scuffing, and wear, ensuring effective lubrication for heavily loaded bearings and transmission parts.

Superior Oxidation Stability for High-Temperature Operation
The grease demonstrates outstanding resistance to oxidation, preventing grease degradation, hardening, and oil separation at elevated temperatures. This property allows the lubricant to maintain stable performance and significantly extends relubrication intervals, even during continuous high-temperature operation.

Reliable Rust and Corrosion Protection
With effective rust-preventive additives, 7019-1 protects metal components from corrosion caused by moisture, humidity, or corrosive environments. This ensures long-term protection of bearings and mechanical parts, reducing maintenance costs and unexpected downtime.

Excellent Resistance to Fretting Wear
The grease offers strong protection against micro-motion wear, preventing pitting and surface damage caused by vibration or small oscillating movements. This is particularly important for bearings and couplings subjected to frequent start-stop cycles or vibration.

Broad Consistency Range for Versatile Applications
Available in multiple NLGI grades (00–3), 7019-1 can be tailored to different lubrication methods and operating conditions. Lower consistency grades are suitable for centralized lubrication systems, while higher grades provide enhanced sealing and load-bearing performance for individual lubrication points.

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Typical Technical Characteristics

Great Wall® 7019-1 Extreme Pressure High-Temperature Grease exhibits stable and reliable physical properties:

• Appearance: Yellow, smooth, uniform grease

• Drop Point: Above 300°C (up to >330°C for higher consistency grades)

• Evaporation Loss (180°C, 1 h): Low volatility

• Apparent Viscosity (-20°C, 10 s⁻¹): Suitable for low-temperature pumpability

• Corrosion Test (45# steel, 100°C, 3 h): Qualified

• Load-Carrying Capacity: High PB value and excellent comprehensive wear performance

These characteristics confirm the grease’s ability to maintain lubrication performance under combined thermal and mechanical stress.

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Applications

Great Wall® 7019-1 Extreme Pressure High-Temperature Grease is widely used in various heavy industries, including:

• Petrochemical processing

• Textile and dyeing industries

• Mining and mineral processing

• Steel and metallurgical plants

• Float glass production

It is suitable for the lubrication of high-temperature bearings, medium- and heavy-load ball bearings, roller bearings, sliding bearings, as well as gears, chain support rollers, couplings, and transmission components used in baking and heating equipment.

Operating temperature range:

• -30°C to +150°C

• Short-term use up to +180°C

Grades 00, 0, and 1 are particularly recommended for centralized lubrication systems, ensuring smooth grease delivery and uniform lubrication across multiple points.

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Proven Field Performance

In large petrochemical facilities such as Yanshan, Dalian, and Liaoyang Petrochemical Plants, hundreds of electric motors ranging from 50 kW to 900 kW were originally lubricated with conventional lithium-based grease containing molybdenum disulfide. Bearings required relubrication every 3–6 months, and frequent lubrication failures led to serious shaft seizure incidents, disrupting production.

After switching to Great Wall® 7019-1, bearing lubrication intervals were extended to over one year, shaft seizure failures were eliminated, and maintenance costs were significantly reduced—delivering clear time and cost savings.

Similarly, in a major steel group’s steelmaking plant, replacing ordinary lithium grease with 7019-1 for motor bearings exposed to high radiant heat reduced maintenance workload by nearly 50%. Lubrication-related emergency repairs were largely eliminated, earning strong approval from maintenance personnel.

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Conclusion

Great Wall® 7019-1 Extreme Pressure High-Temperature Grease is a reliable, heavy-duty lubrication solution designed for high-temperature and high-load industrial applications. With its excellent extreme pressure performance, oxidation stability, rust protection, and resistance to fretting wear, it significantly extends bearing life and reduces maintenance frequency. Proven by extensive industrial use, 7019-1 delivers stable performance, operational reliability, and tangible cost savings for demanding production environments.