16 items found. For further information on glossary terms contact us
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
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 mi
Separation of liquid lubricant from a grease.
A very firm grease manufactured in block form to be applied to certain large open plain bearings operating at high temperatures and slow speeds.
Passage of unburnt fuel and combustion gases past the piston rings of engines. Results in so-called fuel dilution of the crankcase lubricant.
Lubrication between two rubbing surfaces without the development of a full fluid lubricating film. It occurs under high loads and requires the use of antiwear or extreme-pressure additives to prevent metal-to metal contact.
Borderline Pumping Temperature
Denting caused by impact of one bearing component against another while stationary.
Viscosity, in centipoises, as determined on the Brookfield viscometer (ASTM D2983). The operating principle for the Brookfield viscometer is the torque resistance on a spindle rotating in the fluid being tested. Although Brookfield viscosities are most fr
British Thermal Unit
A system of filtration in which only a portion of the total flow of a circulating fluid system passes through a filter at any instant or in which a filter having its own circulating pump operates in parallel to the main flow.