FATIGUE AND WEAR IN A JOURNAL BEARING (during start-up and boundary lubrication)
When two bodies are pressed together contact stresses occur. The results of the work done in this area are due to Hertz and are referred to as Hertzian stresses. Two special cases of hertzian stresses are: contacting spheres and contacting cylinders. An example of contacting spheres would be a single row ball bearing, with a single ball contacting the inner surface of the inner or outer race. An example of contacting cylinders would be a Read more…
In a recent 
Even as a boy I was continually mystified, and occasionally perplexed, by the operation of the carburettor. The myriad of main jets, air correction jets and emulsion tubes and the science on the fixed jet DCOE was a veritable minefield for the inexperienced, but once mastered, the satisfaction of getting an engine to start let alone run sweetly on the road or track, was reward in itself. The arrival of electronic fuel injection with its altogether totally different approach was greeted with relief more than any other emotion, not least because it solved the perennial problem of under bonnet packaging of large carburettors. But although the fuel could be
