Turbocharger bearing development

Monday, November 10, 2014
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While journal bearings currently reign supreme for applications such as crankshafts, other areas of the powertrain use different types. There is a host of different applications, but those intended for use in turbochargers are some of the most intere... read more
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Microprofiled bearings

Monday, August 18, 2014
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The intense competition to win, be it on the racetrack or in car dealer showrooms, is pushing the design of the internal combustion engine to even greater extremes. To save weight, engines are kept short, crankshaft journals need to be narrower and, ... read more
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Fatigue

Wednesday, July 09, 2014
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In recent years the push towards more fuel-efficient, direct injected engines has led to increased peak cylinder pressures and higher bearing loads. In order to support this higher level of performance, therefore, plain metal shell bearings have had ... read more
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Lead-free bearings

Thursday, May 08, 2014
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Throughout the 20th century, lead made a significant contribution to the development of the internal combustion engine. Initially this was in the form of Babbit-type materials (a mixture of tin, antimony, copper and lead) that were used in engine bea... read more
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Bearing distress

Thursday, March 27, 2014
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I have read a report that says 55% of all bearing failures are attributable to the presence of dirt. Referred to more accurately in the report as “foreign body contamination” in this context, dirt is defined as being “any impurity, ... read more
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Crankshaft bearing selection

Wednesday, February 19, 2014
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Although the theory of designing crankshaft bearings is now so much more sophisticated, the practice of building the engine to the correct clearances is still a bit of a challenge. With the running clearance between bearing and journal measured in mi... read more
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Bearing wear

Wednesday, January 08, 2014
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There is a lot more to designing and manufacturing modern crankshaft bearings than many people realise. Designed to run reliably over a wide range of operating conditions, and using lubricants with viscosities so low they would have made engineers la... read more
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The ceramic revolution?

Monday, December 02, 2013
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It’s amazing what you find out some days. While chatting to a colleague recently just before dinner he happened to mention that for 2014 the latest set of revised Formula 1 regulations allow – shock horror – rolling element bearings... read more
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The small-end bearing

Monday, October 07, 2013
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As critical as it is to the reliable running of any internal combustion engine, the operation of the small- or little-end bearing and its associated gudgeon (or, as often referred to nowadays, the piston pin) is still a bit of mystery. So if at the o... read more
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