Additives in lubricating oils
Additives are substances formulated for improvement of the anti-friction, chemical and physical properties of base oils (mineral, synthetic, vegetable or animal), which results in enhancing the lubricant performance and extending the equipment life.Combination of different…
Determining the Cause of Oil Degradation
There are many causes that can result in the degrading of your lube oil. The most common are oxidation, thermal breakdown of the lube oil, micro-dieseling, additive depletion and contamination.…
Requirements and characteristics of lubricants
The main requirements for lubricants are that they are able to:Keep surfaces separate under all loads, temperatures and speeds, thus minimising friction and wear.Act as a cooling fluid removing the heat produced…
Function of Lubrication system
1. Reduced friction Lubricant forms an oil film on the surface of metals, converting solid friction into liquid friction to reduce friction, which is the most common and essential function…
Pressure-Viscosity Coefficient and Characteristics of Lubricants
Primary purpose of any industrial lubricant is to maintain a satisfactory lubricating film in between contacting surfaces; and importance of viscosity to achieve this is univocally known in industrial maintenance practices. However,…
Hydrodynamic Lubrication (HL)
Hydrodynamic lubrication is a way that is used to reduce friction and/or wear of rubbing solids with the aid of liquid (or semi-solid) lubricant. For a vast majority of the surfaces encountered in nature and…
Engine Friction and Lubrication
Engine friction – terminology – Pumping loss – Rubbing friction loss Engine Friction: terminology Friction components
Lubricant base stocks
Why are base stocks important? Lubricant properties affected by base stocks What are base stocks? Chemical bonds and terminology Base stock molecules – hydrocarbons Base stock molecules – polars
Bearing Lubrication
Lubricants take the form of either oil or grease. Oil lubricants are most common in high speed, high-temperature applications that need heat transfer away from working bearing surfaces. Bearing oils…
Gasoline blending
One of the most critical economic issues for a petroleum refiner is selecting the optimal combination of components to produce final gasoline products. Gasoline blending is much more complicated than a simple…
