Premature Failure of Spherical Roller Bearings: Root Cause Analysis and Prevention
A premature failure of a Festo 574479 spherical roller bearing was analyzed to identify root causes and implement corrective measures. The failure was attributed to…
Cause Analysis
Expert articles on root cause analysis: fault investigation, diagnostic methodologies and prevention strategies.
Analysis of the root causes of the spalling of the key joint: load, deflection and fatigue under cyclic loading
REXROTH QV-06/24/60 key joint chipping causes production stoppage. Analysis indicates insufficient clearance, cyclic loading and material fatigue. The use of components that meet the standards…
Cause investigation of linear rail damage: contamination, preload and wear
Linear rail damage in industrial applications can be caused by contamination, improper preload and insufficient humidity. A systematic investigation method and practical checklist help technicians…
Root Cause Analysis of Oil Leakage in Reducers: Seal Selection, Ventilation and Assembly Errors
Oil leakage in reducers can be caused by improper seal selection, ventilation problems and assembly errors. This article presents a technical analysis and practical solutions…
Root Cause Analysis of Electric Motor Winding Failure: Insulation Breakdown, Overload and Voltage Imbalance
The failure of the Telemecanique ZCEF2+ZCMD21L2 electric motor was caused by voltage unbalance, overload and poor winding insulation. To resolve this, it is recommended to…
Forensic damage analysis on linear part guides: wear patterns, contamination and preload errors
Forensic damage analysis on linear guides: Examination of wear patterns due to contamination, preload errors and lack of lubrication including practical tips for maintenance staff.
Root Cause Analysis of Conveyor Belt Tracking Problems: Bearings, Alignment and Load Distribution
Improper conveyor belt tracking is a common problem in Italian plants. Analysis of the failure data revealed a decrease in MTBF and an increase in…
Transmission Oil Leakage Analysis: Seal Selection, Venting, and Installation Errors
The Heidenhain 682434-03 transmission oil leak is related to seal selection, ventilation, and installation errors. Root causes, fixes, and prevention strategies are covered. Visit the…
Failure Analysis: Pitting and Spalling in Industrial Gears
1. Introduction A pulp production line in the state of São Paulo stopped unexpectedly after an abrupt increase in the level of noise and vibration…
Root cause analysis of encoder signal loss: cable shielding, EMI, and connector degradation
Encoder signal loss can be caused by poor shielding, EMI and connector degradation. The analysis identified root causes and proposed practical solutions to prevent future…
Cavitation in Pumps: Analysis of NPSH, Causes and Diagnostic Vibration Signatures
Cavitation in pumps leads to reduced performance and premature wear. Analysis of NPSH, vibration and temperature helps to identify the causes. The use of high-quality…
Root Cause Analysis: Shaft Wrench Failure – Design Stress, Fitting Tolerance and Fatigue under Cyclic Load
The DANFOSS 175U1847 spindle wrench failure was caused by inadequate design stress, inadequate fit tolerance, and cyclic loading fatigue. Preventative maintenance and continuous monitoring are…