A lubricant containing asphaltic materials, which impart extra adhesiveness, that are used for open gears and steel cables.
Related Terms |
COMPOUND
(1) chemically speaking, a distinct substance formed by the combination of two or more elements in definite proportions by weight and possessing physical and chemical properties different from those of the combining elements. (2) in petroleum processing, generally connotes fatty oils and similar materials foreign to petroleum added to lubricants to impart special properties.
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DETERGENT
In lubrication, either an additive or a compounded lubricant having the property of keeping insoluble matter in suspension thus preventing its deposition where it would be harmful. A detergent may also redisperse deposits already formed.
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AERATION
The state of air being suspended in a liquid such as a lubricant or hydraulic fluid.
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ADHESION
The property of a lubricant that causes it to cling or adhere to a solid surface.
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BRIGHT STOCK
A heavy residual lubricant stock with low pour point, used in finished blends to provide good bearing film strength, prevent scuffing, and reduce oil consumption. Usually identified by its viscosity, SUS at 210°F or cSt at 100°C.
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FILM STRENGTH
Property of a lubricant that acts to prevent scuffing or scoring of metal parts.
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EP (EXTREME PRESSURE) LUBRICANTS
Lubricants that impart to rubbing surfaces the ability to carry appreciably greater loads than would be possible with ordinary lubricants without excessive wear or damage.
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BASE STOCK
The base fluid, usually a refined petroleum fraction or a selected synthetic material, into which additives are blended to produce finished lubricants.
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HYPOID GEAR LUBRICANT
A gear lubricant having extreme pressure characteristics for use with a hypoid type of gear as in the differential of an automobile.
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FERROGRAPHY
An analytical method of assessing machine health by quantifying and examining ferrous wear particles suspended in the lubricant or hydraulic fluid.
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