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Surface cavities, may be related to fatigue, overload or corrosion.

Engineering science pertaining to gaseous pressure and flow.

The amount of acid needed to neutralize all or part of a lubricants alkalinity.

Refined petroleum oils that can either be blended with one another or supplemented with additives to make lubricants.

Compounds that react with acids to form salts plus water. Alkalis are water-soluble bases used in petroleum refining to remove acidic impurities. Oil soluble bases are included in lubricating oil additives to neutralize acids formed during the combustion of fuel or oxidation of the lubricant.

Basic machine component designed to reduce friction between moving parts and to support a moving load.

The British Fluid Power Association, represents Hydraulic and Pneumatic businesses commercially and technically throughout the UK.

Ability of a material can be broken down, within given parameters of time and environment, by naturally occurring bacteria into simple substances, which do not harm the environment.

The chemical breakdown of materials by living organisms in the environment. The process depends on certain microorganisms, such as bacteria, yeast and fungi, which break down molecules for sustenance. Certain chemical structures are more susceptible to microbial breakdown than others; vegetable oils, for example, will biodegrade more rapidly than p [..]