Forensic Analysis of Ball Screw Clearance: Preload Loss, Lubrication and Wear
Forensic analysis of backlash increase in the ball screw Heidenhain HE587749-01. Discover the root causes such as seal failure and lubrication loss, and use the…
Cause Analysis
Expert articles on root cause analysis: failure investigation and prevention strategies.
Forensic Root Cause Analysis: Hydraulic Filter Element Collapse and Contamination Surges
A forensic engineering investigation into hydraulic filter element collapse, examining differential pressure spikes, bypass valve stiction, and cold-start viscosity surges.
Forensic Analysis of VFD-Induced Low Currents: Shaft Voltage and EDM Damage in Industrial Drives
Forensic analysis of VFD-induced low currents and shaft voltage. Discover the causes of EDM damage, measurement methods and practical prevention strategies for industrial motors.
Root Cause Analysis: Bearing currents induced by frequency converters, and methods of their elimination in industrial drives
Detailed engineering analysis of the causes of bearing currents from frequency converters, methodology of diagnostics and practical measures for Ukrainian industrial enterprises.
Failure Analysis: Encoder Signal Loss through Shielding, EMI and Connection Degradation
Forensic analysis of an encoder signal loss on an aeronautical test bench: investigation of shielding, electromagnetic interference (EMI) and connectivity.
Root Cause Analysis: Overheating in Servomotors due to Dimensioning Errors and Work Cycle Errors
Forensic analysis of overheating failures in industrial servomotors. Causes such as sizing errors, inappropriate duty cycles and cooling failures are examined, with practical guidelines for…
Root Cause Analysis of Hydraulic Cylinder Failures: Contamination, Misalignment or Pressure Surges?
Detailed analysis of the premature failure causes of the hydraulic cylinder Bosch 200737119 at an industrial enterprise. The influence of oil contamination, misalignment and pressure…
Failure mode analysis of torques: deviation, torque overload and fatigue cracking
A failure of the VICKERS DG4V36CMUH760 coupling was analyzed via vibration and thermal measurements. The main causes include misalignment, torque overload, and fatigue cracking. Immediate…
Thermal relay load failure: cause analysis and prevention strategy
Thermal Relay 140XBP01000 trips frequently due to overload, ambient temperature and ventilation. Cause analysis and prevention strategy with practical checklists and spare parts in UNITEC-D…
Root Cause Analysis of VFD-Induced Bearing Currents: Shaft Voltage, EDM Damage, and Mitigation Strategies
VFD-induced bearing currents cause EDM damage and premature motor failure. This article analyzes the root causes, provides a practical checklist, and recommends corrective actions to…
Pneumatic Valve Blockage Root Cause Analysis: Contamination, Moisture, and Lubrication Factors
Blocking a pneumatic valve can cause production stoppages. Root cause analysis identified contamination, moisture and lack of lubrication as major factors. Solutions included filter replacement,…
Conveyor Belt Tracking Problems: Cause, Diagnosis and Solution
Conveyor belt tracking problems are a serious fault in production processes. By systematic analysis and corrective measures, productivity can be restored. Check the UNITEC-D E-Catalog…