Mechanical Failures

15 April 2008

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Half-shafts

Half-shaft failures are more often caused by a loose fit between shaft and rear hub, although some are caused by metal fatigue and the shaft breaks straight across. This may be due to worn hub bearings allowing a twisting moment on the end of the shaft.

The following photos show broken keyways due to slack hub fitting and a shaft failure ( end on view ) together with a potential failure due to a radial crack.

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