• sumit shoor
• Manpreet singh

Bearing plays a vital role in any kind of rotating machinery as bearing failure can put rotating machine in downtime and may interrupt production. So bearing prognosis plays a vital role in estimating the remaining useful life of bearing and hence helps in deciding the right maintenance strategy. The most important factor in doing prognosis is to study the fault growth rate and which is one of the main intent of this paper. In this literature survey study has been carried out on defect propagation of bearing and misalignment of shaft using vibration signature.. Different techniques were used by authors to study crack propagation and misalignment is mentioned in this literature.

"A Comparative Study of Various Methods of Bearing Faults Diagnosis- A Review", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 4, page no.1203-1208, April-2019, Available :http://www.jetir.org/papers/JETIREL06177.pdf

"A Comparative Study of Various Methods of Bearing Faults Diagnosis- A Review", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 4, page no. pp1203-1208, April-2019, Available at : http://www.jetir.org/papers/JETIREL06177.pdf