Anti-wear additives form a protective layer at lower temperatures and moderate pressures, while antioxidants are included to delay the oxidation process that thickens the oil and leads to sludge formation. Maintenance and Contamination Control Even the highest quality oil for gears will fail prematurely if the system is not properly maintained.
Application Criteria for Choosing Oil for Gears
The number preceding the 'W' indicates low-temperature fluidity, which is critical for cold starts, while the number after the dash denotes high-temperature viscosity. For demanding applications, synthetic gear oils are often the superior choice.
Whether operating in the controlled environment of an industrial plant or the demanding conditions of an off-road vehicle, the lubricant serves as the primary interface preventing metal-to-metal contact. Application-Specific Selection Criteria The environment in which the gears operate dictates the ideal formulation.
Understanding Application Criteria for Selecting Gear Oil
Application Key Requirement Recommended Additive Package Automotive Differential Shear stability, temperature range GL-5 EP additives Industrial Gearbox Load capacity, oxidation resistance GL-4/GL-5 EP additives Marine Propulsion Water contamination resistance, rust protection Hypoid gear additives Viscosity Grading and Synthetic Options Understanding the viscosity grade, such as 75W-90 or 220, is essential for matching the oil to the machinery. Too thin, and the film breaks down under pressure; too thick, and it causes excessive churning losses that reduce energy efficiency and generate unwanted heat.
More About Oil for gears
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