friction of boundary lubrication

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• Lubrication — is the process, or technique employed to reduce wear of one or both surfaces in close proximity, and moving relative to each another, by interposing a substance called lubricant between the surfaces to carry or to help carry the load (pressure… …   Wikipedia

• lubrication — See lubricate. * * * Introduction of any of various substances between sliding surfaces to reduce wear and friction. Lubricants may secondarily control corrosion, regulate temperature, electrically insulate, remove contaminants, or damp shock.… …   Universalium

• Friction — For other uses, see Friction (disambiguation). Classical mechanics …   Wikipedia

• Hydrodynamic lubrication — Hydrodynamic (HD) lubrication (or fluid film lubrication) has essential elements:#A lubricant, which must be a viscous fluid. #Hydrodynamic flow behavior of fluid between bearing and journal. #The surfaces between which the fluid films move must… …   Wikipedia

• Bushing — A mechanical bushing is a cylindrical lining designed to reduce friction and wear inside a hole, or constrict and restrain motion of mechanical parts. Bushing types One type of bushing is the threaded insert , a hardened metal insert with a… …   Wikipedia

• Dimensionless quantity — In dimensional analysis, a dimensionless quantity or quantity of dimension one is a quantity without an associated physical dimension. It is thus a pure number, and as such always has a dimension of 1.[1] Dimensionless quantities are widely used… …   Wikipedia

• Lubricity — is the measure of the reduction in friction of a lubricant. The study of lubrication and mechanism wear is called tribology.Measurement of lubricityLubricity of a material cannot be directly measured, so tests are performed to quantify a… …   Wikipedia

• Twist compression tester — The Twist Compression Tester ( TCT ) is a hydraulically operated bench top apparatus used to evaluate the level of friction and/or wear between two materials under lubricated or non lubricated conditions.Under controlled conditions, a rotating… …   Wikipedia

• Plain bearing — Crankshaft plain bearing shells A plain bearing, also known as a plane bearing[1] or a friction bearing[2] is the simplest type of bearing, comprising just a bearing surface and no rolling elem …   Wikipedia

• Tribology — is the science and engineering of interacting surfaces in relative motion. It includes the study and application of the principles of friction, lubrication and wear. Tribology is a branch of mechanical engineering. Contents 1 Fundamentals 1.1… …   Wikipedia

• Motor oil — For the TV documentary focused on the Edmonton Oilers of the National Hockey League, see Oil Change (TV Series). Motor oil sample Motor oil or engine oil is an oil used for lubrication of various internal combustion engines. The main function is… …   Wikipedia