Review On- Bearing Cup Failure Analysis Used In Automobiles

Mechanical Engineering ( Design Engg.)

Drive shaft is used to transmit torque from transmission gear box to differential. In the study analysis of bearing cup failure in drive shaft assembly was carried out to identify and eliminate the causes of failure investigation of failed parts reveals that the failure was caused due to brittleness caused by through hardening during carburizing of bearing cup. Differentiate surface treatment like carbonitriding, nitriding, were suggested and comparative evaluation was made on the basis of wear test, chemical analysis, hardness test, push-out load test etc. The result reveals that specific wear rate was less for surface treated samples that for untreated sample. Push-out load was more for carbonitriding and nitriding sample as compare to carburizing sample. Carbonitriding and carburizing shows good fatigue strength than nitriding as case achieved in nitriding was less. After evaluating all the processes carbonitriding was selected as alternative surface treatment process.

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