B2-SH-10-D veling gears Hoisting gears Derricking jib c Bevel-helical gear Reduction Boxes B2

Flender/Flender Gear Units/Bevel-helical gear Reduction Boxes B2

leading to corrosion and compromised performance. Because of this, gear oil must be formulated to quickly separate water through the range of temperatures found in industrial gearboxes. This will extend the life of the oil and the machinery. dedica Ted for induSTrial uSe. There are two types of industrial gear lubricants. The first, so-called universal gear oils, are formu- lated so they can also be used in automotive gear applications. Universal fluids (formulated for automotive and industrial use) may contain components that are unnecessary for and/or harmful to industrial gears. On the other hand, they may omit components that are critical to industrial use (demulsibility additives). Gear oils for industrial applications are formulated with additives necessary for protection and optimal functioning. SMar addiTive . Conventional additives that improve extreme- pressure properties in gear oil are often susceptible to thermal instability, which encourages sludge. But additives are available that improve thermal stability, discourage sludge formation and provide extreme-pressure protection. This allows high extreme-pressure performance and cleanliness throughout the full range of viscosities. * Based on five factors cited by Lubrizol product manager Tim Cooper. when the surface roughness of bearings or gears matches the lubricant fi lm thickness, parts of the two surfaces come in contact with each other caus-ing micropitting. Surfaces subjected to heavy loads, high temperatures and lubricant that doesnt have high enough viscosity will experience micropitting, Shah adds. Presence of water will also aggra-vate micropitting. Certain properties of lubricant basestocks and additives (.., antiscuff agents) affect micropitting, as does viscosity . On the other hand, some lubricants can stop the process. STLE-member Tim Cooper, Lubr- izols industrial product manager for Europe, Africa and the Middle East, explains, There are various theories regarding the cause