Innovative bearings

Tuesday, August 20, 2013
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Life is a compromise. As engineers we are all familiar with the principle of ‘give and take’, and once the problem is identified, until now we have always managed to come up with a workable solution which, if not altogether perfect, suits... read more
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The thrust bearing

Thursday, July 04, 2013
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I think it’s fair to say that the crankshaft thrust bearing will not be very high on the list of priorities for most engine designers. And yet with higher engine output torques requiring greater (if somewhat intermittent) axial forces within th... read more
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Bearing the strain

Thursday, May 16, 2013
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When discussing bearings it is sometimes easier to limit such studies to those of the crankshaft mains and con rod (both big and little ends). In more modern times the turbocharger bearing is perhaps attracting more interest, so these days we conside... read more
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Clearance matters

Friday, April 05, 2013
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In theory at least, an engine bearing – be it big-end or crankshaft main – should be one of the simplest components to lubricate. Separated by a thin film of oil forced into a gap under pressure, when running at a constant rotational spee... read more
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Cavitation

Thursday, February 21, 2013
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As a general rule the most critical part of the lubrication system in any race engine is perhaps the big-end bearing. To ensure that this big-end bearing remains fully lubricated, the oil pump delivery pressure has to be such as to have overcome all ... read more
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Bearing Feeds

Thursday, January 03, 2013
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The development of a new bearing material is undoubtedly an exacting and complex business. Likewise, the choice of a suitable lubricating fluid is not without its trials and tribulations, especially if for reasons of efficiency you are trying to brea... read more
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Bearing lubrication

Thursday, November 08, 2012
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The total friction in an engine is the sum of that emanating from a number of different sources operating at a range of widely varying conditions. Temperature, load, surface condition and shear rate are all implicated in this total amount of friction... read more
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Aluminium and tin

Thursday, September 27, 2012
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Despite many years of bearing development there are still those who argue that there is no better material than babbits. For corrosion resistance, embeddability, conformability and their ability to support thick hydrodynamic oil films for instance, b... read more
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Bearing wear

Monday, August 13, 2012
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Even after more than 30 years in the engine business, the bearing systems in modern internal combustion engine still amaze me. Made from a mixture of aluminium and tin on a steel backing (for bi-metallic examples) or a mixture of copper, silicon and ... read more
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Future cracked

Tuesday, July 03, 2012
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Defined as "a device supporting a mechanical component and enabling relative movement to another with the minimum of loss of power", a bearing is not just about the selection of the most appropriate material but also - you might not be surprised to l... read more
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