Vibration Analysis on a Theoretical Model of Deep Groove Ball Bearing with an Inner Race Pit Defect

Author(s)	Mr. Sarthak Narendra Kumbhare, Mr. Venkatesh Yogesh Ranadive, Mr. Anish Sachin Shinde, Mr. Samarth Balaso Kate, Prof. Pravin S Gosavi
Country	India
Abstract	The Reliability and performance can be significantly impacted by inner race defects in ball bearings, which are essential for rotating machinery. This study uses a nonlinear Hertzian contact spring–damper approach to develop a theoretical vibration model of a deep groove ball bearing with an inner race pit defect. Using Python (SciPy, Matplotlib, and numPy) to simulate the defect at different shaft speeds and depths. The results indicate that while shaft speed affects fault frequency detection, increasing defect severity increases vibration response. According to the analysis, vibration-based diagnosis is a dependable non-invasive technique for identifying faults early on, assisting with predictive maintenance, and averting catastrophic failure.
Keywords	Rolling elements, inner race, defect , deflection,vibration analysis,
Field	Engineering
Published In	Volume 7, Issue 6, November-December 2025
Published On	2025-11-12
DOI	https://doi.org/10.36948/ijfmr.2025.v07i06.59211

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