great-wall-7020-kiln-car-bearing-grease

great-wall-7020-kiln-car-bearing-grease

Great Wall 7020 Kiln Car Bearing Grease – High-Temperature Heavy-Duty Lubrication Solution

Product Overview
Great Wall 7020 Kiln Car Bearing Grease is a premium high-temperature industrial grease specifically developed for kiln car bearings and other components operating under extreme heat, low speed, and heavy load conditions. The product is formulated with a high-quality synthetic base oil thickened by an inorganic thickener system, and enhanced with advanced anti-oxidation, extreme pressure, and protective additives. This formulation ensures stable lubrication performance, extended bearing life, and reliable equipment operation in demanding thermal environments.

Key Performance Features

1. Excellent High-Temperature Performance
   Great Wall 7020 demonstrates outstanding thermal stability and lubricity at elevated temperatures. Even under continuous high-heat conditions, the grease maintains an effective lubricating film, ensuring smooth operation and reducing wear of kiln car bearings and related components. It is suitable for long-term operation at temperatures up to 250 °C, with short-term resistance up to 300 °C.

2. Superior Oxidation Resistance
   The grease contains high-efficiency antioxidants that significantly slow down oxidation at high temperatures. This helps preserve grease consistency, minimizes degradation, and extends relubrication intervals, making it ideal for equipment where maintenance access is difficult or infrequent.

3. Good Water Resistance
   Great Wall 7020 offers reliable resistance to water washout and moisture ingress. This allows it to perform consistently in humid or water-exposed environments, protecting bearings from rust, corrosion, and lubricant loss.

4. Reliable Protection and Anti-Wear Performance
   With carefully selected extreme pressure and protective additives, the grease provides strong load-carrying capacity and surface protection. It effectively prevents metal-to-metal contact, reduces friction, and shields lubricated parts from external contaminants and environmental corrosion.

Applicable Standards
Great Wall 7020 Kiln Car Bearing Grease complies with Q/SH303 122-2004 standard, ensuring stable quality and performance consistency for industrial applications.

Typical Technical Data

• Worked Penetration (1/4 cone, 0.1 mm): 68
  Test Method: GB/T 269

• Dropping Point: >330 °C
  Test Method: GB/T 3498

• Oil Separation under Pressure (% m/m): 7.17
  Test Method: GB/T 392

• Evaporation Loss (250 °C, 1 h, % m/m): 4.18
  Test Method: SH/T 0337

• Corrosion Test (45# steel, 100 °C, 3 h): Pass
  Test Method: SH/T 0331

Note: Typical data are not specifications but represent average values.

Application Scope
Great Wall 7020 is designed for lubrication of rolling bearings operating under high temperature, low speed, and heavy load conditions. Typical applications include:

• Kiln car bearings in ceramic, brick, electromagnetic, and tunnel kilns

• Baking and drying equipment chains and bearings

• Sintering cars and stationary heated billet cars for steel and aluminum

• Upper central bearings of activated carbon regeneration furnaces in wastewater treatment plants

• Bearings in incinerators, regeneration furnaces, exhaust fans, and paint curing and drying production lines

When applied correctly and at proper lubrication intervals, bearing service life can be extended significantly—up to 7 years in certain kiln car bearing applications.

Operating Temperature Range

• Recommended long-term operating temperature: up to 250 °C

• Short-term maximum temperature: up to 300 °C

At temperatures above 250 °C, the grease may gradually dry and form a solid lubricating film. This film continues to provide effective lubrication and protection under extreme thermal conditions.

Technical Recognition and Field Performance
Great Wall 7020 has received technical material approval from MCC CEDY (China Metallurgical CEDI Engineering Co., Ltd.). It has been successfully used for over 10 years in high-temperature bearing applications within building ceramic production equipment in regions such as Dongguan and Foshan, Guangdong Province, with consistently positive performance feedback from end users.

Equivalent Products
Performance comparable to internationally recognized high-temperature greases, such as:

• Klüber (Germany): UNISLON TK44N2 RecA

Handling and Storage Recommendations

• After opening, reseal the container promptly to prevent contamination by dust or debris.

• Store in a clean, dry environment away from direct sunlight and extreme temperature fluctuations.

• Follow proper lubrication practices to achieve optimal performance and maximum bearing life.

Conclusion
Great Wall 7020 Kiln Car Bearing Grease is a proven, high-reliability solution for industrial users facing extreme heat and heavy-duty operating conditions. Its excellent high-temperature stability, oxidation resistance, water resistance, and protective performance make it an ideal choice for kiln cars, furnaces, and other high-temperature bearing applications where long service life and reduced maintenance are critical.