AVYOL has in its range anti micro-pitting gear oils for use in highly loaded gear boxes meeting the above specifications in viscosity grades of ISO VG 68, 100, 150, 220, 320, 460, 680 & 1000. AVYOL has got synthetic gear oils made of PAO and PAG in its range.
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Today's gearboxes are made from new materials, which results in a lighter weight of the gearbox. They are required to produce more power and be more durable and reliable than their predecessors. In addition, the teeth and bearing loadings are also higher. The smaller size of the gearbox means less oil and additive to lubricate the gears, which are now trying to carry higher loads. This results in higher temperatures and an acceleration of the oxidation process. Oxidation is harmful for industrial gear oils because it can form sludge, which can shorten the oil life and component life of the gearbox. This results in downtime and expenses to replace or repair components.
Additives play a leading role in adding value by improving the properties, lubrication and performance of industrial gear oils. They provide factors such as oxidation, viscosity and thermal stability, micro-pitting resistance, bearing corrosion protection, foam resistance and enhanced load carrying. In addition, they provide seal protection and demulsibility (ability to shed water). A host of additives is required to deliver full performance. These additives include sulfur-phosphorus chemistry for extreme pressure, antioxidants, demulsifiers, friction modifiers, viscosity modifiers, metal deactivators and others.
Additives used to enhance extreme-pressure properties can be prone to thermal stability issues, resulting in the formation of sludge. This new technology has been formulated to provide the optimum balance of thermal stability for sludge-free gear sets and extreme-pressure protection for heavy-duty durability by prolonging the life of gearboxes, maximizing efficiency and eliminating downtime. This new additive technology Gear Lubricant will meet specifications DIN 51517 Part 3, U.S. Steel 224, ISO 12925-1 CKC/CKD, Cincinnati Machine, AGMA 9005-E02, and GM LS-2 and David Brown S1.53.101.
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