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…
Cause Analysis
Expert articles on root cause analysis: fault investigation, diagnostic methodologies and prevention strategies.
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…
Analysis of hydraulic cylinder seal failures: Contamination, misalignment and water hammer
Forensic engineering analysis of Danfoss 017-524066 hydraulic cylinder seal failure, assessing the impact of misalignment, contamination and pressure spikes.
Analysis of the causes of fatigue wear of chain drives and sprockets: methods of measurement and prevention
The occurrence of fatigue wear of the chain drive and sprockets requires a systematic analysis. Using components that comply with CE, UkrSEPRO standards and taking…
Root Cause Analysis of Shaft Nail Failure: Design Stress, Fit Tolerance and Fatigue under Cyclic Loading
Failure of an axle nail can cause unplanned shutdowns. This article analyzes the root causes and offers practical solutions for prevention. Visit the UNITEC-D E-Catalog…
Root Cause Analysis: Pneumatic Valve Blocked by Contamination, Moisture and Lubrication Failures
A HYDAC 1253084 pneumatic valve is stuck due to contamination, moisture, and insufficient lubrication. This article analyzes the root causes and provides practical solutions to…
Root cause analysis of oil leak in a gearbox: gasket selection, breakdown and assembly errors
An oil leak in a Heidenhain 340253-01 gearbox is analyzed to identify root causes, including improper seal selection, insufficient ventilation and assembly errors. Corrective actions…
Root Cause Analysis of VFD-Induced Bearing Currents: Shaft Voltage, EDM Damage, and Mitigation Strategies
VFD-induced bearing failure due to shaft voltage and EDM damage is a critical issue in industrial motors. This article provides a systematic analysis of the…
Analysis of the root causes of the explosive loss of ball roller bearings FIBRO 2960.71.080.250
Explosive loss of FIBRO 2960.71.080.250 ball roller bearings is a serious problem that requires root cause analysis. The article provides diagnostic methods, root causes and…
Cause of filter element collapse: Pressure differences, bypass valves and contamination spikes
Filter element collapse can be caused by pressure differences, contamination and defective bypass valves. A systematic investigation and the right tools are essential to identify…