Description
Choosing the right gear oil is essential for the smooth operation and longevity of your machinery. Gear oils 220 and 320 are popular options, each with distinct characteristics suited to different conditions. Here’s an easy-to-understand comparison to help you determine which one is best for your needs.
Key Characteristics
Gear Oil 220
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ISO VG: 220
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Viscosity @ 40°C: 220.3 cSt
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Pour Point: -18°C
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Flash Point: 242°C
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Corrosion Test: Pass
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FZG Test: >12
Gear Oil 320
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ISO VG: 320
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Viscosity @ 40°C: 319.4 cSt
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Pour Point: -16°C
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Flash Point: 248°C
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Corrosion Test: Pass
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FZG Test: >12
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Viscosity
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Viscosity refers to how thick or thin the oil is:
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Gear Oil 220 is thinner with a viscosity of 220.3 cSt, making it more fluid.
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Gear Oil 320 is thicker with a viscosity of 319.4 cSt, providing more cushioning for heavy loads.
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Temperature Performance
Pour Point
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Gear Oil 220: Remains fluid at -18°C, better for colder climates.
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Gear Oil 320: Stays fluid at -16°C.
Flash Point
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Gear Oil 220: Can withstand temperatures up to 242°C before igniting.
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Gear Oil 320: Higher tolerance, up to 248°C, making it better for high-temperature environments.
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Protection
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Both gear oils offer excellent protection:
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Corrosion Test:
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Both pass, indicating good rust prevention.
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FZG Test: Scores above 12 for both oils, showing strong wear protection capabilities.
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Best Applications
Gear Oil 220
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Ideal For: Moderate loads and speeds, colder temperatures.
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Examples: Industrial gearboxes in cold climates.
Gear Oil 320
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Ideal For: Heavy loads, slower speeds, high temperatures.
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Examples: Heavy-duty industrial gear systems.
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Where to Buy
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Conclusion
Selecting between gear oil 220 and 320 depends on your machinery's specific needs:
Gear Oil 220: Best for moderate conditions and colder climates.
Gear Oil 320: Best for heavy-duty use and higher temperatures.
Always consult your machinery’s manual or a lubrication expert to ensure you choose the right gear oil for optimal performance and longevity.
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