Servo motor overheating: cause analysis and prevention
Overheating of a servo motor is a warning signal that there is an impending risk of failure. Through a systematic root cause analysis, causes such…
Analysis of the Causes
Expert articles in root cause analysis: investigation of failures and prevention strategies.
Analysis of servo motor overheating: sizing errors, poor duty cycle estimation and cooling failure
The overheating of an SKF FY20TF servo motor was analyzed to identify the root causes. Sizing errors, poor duty cycle estimation and cooling system failure…
Root Cause Analysis of Chain Joint Stretch and Pinecone Wear: Measurement Techniques and Solutions
An increase in temperature, abnormal vibrations and chain elongation indicate a critical failure. Root cause analysis shows that insufficient maintenance is the main cause. Replacing…
Pump Cavitation: NPSH Analysis, Causes, and Diagnostic Vibration Signatures
Pump cavitation leads to reduced efficiency, vibration, and mechanical failure. This article investigates NPSH analysis, root causes, and diagnostic vibration signatures for the Siemens 6SN1123-1AA00-0CA2…
Root cause analysis of unintended tripping of thermal relay: ambient temperature, load profile and design errors
The Siemens thermal relay 6ES7 361-3CA01-0AA0 may experience false trips due to ambient temperature, load profile, or design errors. A rigorous analysis and corrective actions…
Shaft Key Failure Analysis: Design Stress, Fit Tolerance, and Fatigue Under Cyclic Load
Shaft key failure in FIBRO 2480.21.00150.063 couplings is often due to design stress mismatch, improper fit tolerance, or fatigue. This analysis provides a practical checklist…
Root Cause Analysis: Solenoid Valve Coil Burnout - Duty Cycle, Voltage and Thermal Management
Introduction The burning of a solenoid valve coil is a common problem in industrial automation systems, especially in environments with high operating loads and elevated…
Root cause analysis of premature failure of spherical roller bearings
A DANFOSS OMP1001510622 bearing failed prematurely after 14 000 hours. The analysis identifies causes such as improper mounting and contamination. Corrective measures and rigorous follow-up…
Root Cause Analysis of the Hydraulic Cylinder Seal Failure: Contamination, Misalignment and Pressure Peaks
The seal failure of the hydraulic cylinder Allen Bradley 1492-AIFM8-3 is caused by contamination, mechanical misalignment or pressure spikes. The analysis revealed signs of particulate…
Forensic Engineering Analysis: Shaft Key Failure and Fatigue under Cyclic Load in Heavy Industrial Drives
A forensic engineering investigation into a catastrophic shaft key failure, analyzing design stress, fit tolerances, and cyclic fatigue under heavy industrial loads.
Error classification for wear patterns of linear guide rails: contamination, pre‑compression and lubrication gaps
Uneven wear patterns on the REXROTH DBDH6G10/50 show contamination, pre-compression and lubrication gaps. The causes are systematically analyzed and answered with specific measures for prevention.…
Root Cause Analysis: Chain Drive Elongation and Gear Wear
Forensic analysis of a chain drive with premature elongation and sprocket wear. Root causes, measurements according to UNE/EN standards, and a corrective action plan are…