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Conventional anti-rust and anti-oxidation lubricants for bearings

by:JNSN     2021-12-14
The following describes the ASTM/ISO viscosity grades of industrial bearing lubricants. Figure 13. Viscosity grades of industrial lubricants. ISO Viscosity System Conventional Antirust and Antioxidant Lubricants Conventional Antirust and Antioxidant (Ru0026O) lubricants are the most common industrial lubricants. These lubricants can be applied to Timken® bearings used in various industrial applications without special conditions. Table 24. Recommended characteristics of conventional Ru0026O lubricants. Basic raw materials. Refined petroleum additives with high viscosity index. Anti-corrosion and antioxidant. Viscosity index is minimum 80 pour point and maximum -1C viscosity grade ISO/ASTM 32 to 220. Some low speed and/or high environment Temperature applications require higher viscosity grades. High-speed and/or low-temperature applications require lower viscosity grades. Extreme Pressure (EP) Industrial Gear Oil Extreme pressure gear oil can lubricate Timken® bearings in most heavy-duty industrial equipment. They can withstand the abnormal shock loads common in heavy-duty equipment. Table 25. Recommended industrial EP gear oil characteristics. Basic raw materials. Refined petroleum additives with high viscosity index. Anti-corrosion and antioxidant, extreme pressure (EP) additives (1) Load class 15.8 kg Viscosity index minimum 80 Pour point maximum -1C viscosity Grade ISO/ASTM 100, 150, 220, 320, 4601) ASTM D 2782 Industrial Extreme Pressure (EP) gear oil is composed of highly refined petroleum and corresponding additives. They should not contain materials that can cause corrosion or abrasion to the bearing. The inhibitor should provide long-term oxidation protection and protect the bearing from corrosion in the presence of moisture. The lubricating oil should be able to avoid foam during use and have good waterproof properties. Extreme pressure additives can also prevent scratches under boundary lubrication conditions. The recommended viscosity grade range is very wide. High temperature and/or low speed applications usually require higher viscosity grades. Low temperature and/or high speed applications require lower viscosity grades.
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