Home > Terms > English, UK (UE) > Lubrication

Lubrication

The control of friction and wear by the introduction of a friction-reducing film between moving surfaces in contact. The lubricant used can be a fluid, solid, or plastic substance.

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Related terms

lubricity
Pollution control; Air pollution

A measure of the ability of an oil or other compound to lubricate (reduce friction) between two surfaces in contact.

lubricity
Machine tools; Bearings

A term used to describe the ability of a lubricant to reduce friction between rubbing surfaces. There are no generally accepted test methods available to evaluate this property. ...

lubrication
Machine tools; Bearings

The control of friction and wear by introducing a friction-reducing film between moving surfaces that make contact. It may be a fluid, solid or plastic substance.

lubricant
Machine tools; Bearings

Any substance used to separate two surfaces in motion and reduce the friction or wear of the surfaces.

lubricity
Industrial machinery; Industrial lubricants

Ability of an oil or grease to lubricate; also called film strength.

lubricator
Industrial machinery; Industrial lubricants

A device which adds controlled or metered amounts of lubricant into a pneumatic system.

saybolt universal seconds (sus)
Industrial machinery; Industrial lubricants

The time in seconds required for 60 cubic centimeters of a fluid to flow through the orifice of the Standard Saybolt Universal Viscometer at a given temperature under specified ...

zinc dialkyldithiophosphate (ZDDP)
Industrial machinery; Industrial lubricants

An antiwear additive found in many types of hydraulic and lubricating fluids.

work penetration
Industrial machinery; Industrial lubricants

The penetration of a sample of lubricating grease immediately after it has been brought to 77F and then subjected to 60 stokes in a standard grease worker. This procedure and the ...

worm gear
Industrial machinery; Industrial lubricants

A gear that is in the form of a screw. The screw thread engages the teeth on a worm wheel. When rotated, the worm pulls or pushes the wheel, causing rotation.

wicking
Industrial machinery; Industrial lubricants

The vertical absorption of a liquid into a porous material by capillary forces.

weld point
Industrial machinery; Industrial lubricants

The lowest applied load in kilograms at which the rotating ball in the Four Ball EP test either seizes and welds to the three stationary balls, or at which extreme scoring of the ...

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