(January 17, 2011)

There are many different lubricants. We Fluid film lubrication "elastohydrodynamic" lubrication (EHL) and boundary lubrication. Everyone has their own properties and methods to support the building, sliding bearings or two areas that require movement, but with each other (rub together).

Lubricating oil film, moving surfaces are totally different distance. This trip is a movie filled with oil or gas type. Then, the load generated by the support of one of the anointing "hydrodynamic lubrication, squeeze film action and pressure from outside activities.

As "hydrodynamic lubrication (HL), which separates the liquid film absorbed aligned, zone wedge-shaped movement of the surface self-acting pumping. Both the pressure and friction powerless to act in this film as a function of lubricant viscosity with lateral geometry and the particular circumstances of measurement.

Hydrodynamic bearings generally classified as sliding effect (or weight) and axial (bearings type of pressure). The first journal bearing mating surface around the shaft in his diary on the radial engine. Regarding the latter, while discharge, oil film to the shaft shoulder or collar shaft location and to support the rotor.

Although lubricants gives a lot of support and cost reduction, capacity is often not so large compared to other bearings are used.

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