Cause analysis: Overheating of servo motors (Heidenhain 211 174-xx 100S)
A technical study of overheating failures in servo motors. Analysis of dimensioning errors, miscalculations of the duty cycle and cooling failures according to VDE and…
Analysis of the Causes
Expert articles in root cause analysis: investigation of failures and prevention strategies.
Inverter Induced Bearing Currents (VFD): Forensic Analysis, EDM Damage and Mitigation Strategies
This article examines premature bearing failure in a REXROTH R901102711 motor due to inverter induced currents (VFDs), analyzing electrical discharge damage (EDM). The evidence of…
Root Cause Analysis: Oil Leak in Industrial Reducers – Bosch Case Study 0822243002
1. Introduction Oil leaks in industrial reducers represent one of the most common and costly failures in manufacturing environments. This problem, often underestimated, not only…
Forensic Analysis of Seal Failures in Hydraulic Cylinders: Contamination, Misalignment and Pressure Spikes
Technical analysis of early seal failure in high pressure hydraulic cylinders, investigating the critical role of contamination, misalignment and pressure peaks. Includes a practical diagnostic…
Root Cause Analysis: Allen Bradley 2755HFPD1 Servo Motor Overheating
Technical analysis of the overheating of the Allen Bradley 2755HFPD1 servomotor, with investigation into the root causes related to sizing, duty cycle and thermal dissipation.…
Analysis of the causes of servo motor overheating: thermal stress and system design
An in-depth analysis of the causes of servo motor overheating based on thermal stress, incorrect design and system components such as the Telemecanique AB1-FUSE435U5XB.
Root Cause Analysis: Mitigating Backlash in Ball Screw Assemblies – Preload Loss, Contamination, and Lubrication Failure
This analysis investigates a critical increase in ball screw backlash in a CNC machining center, identifying preload loss, contamination, and lubrication failure as root causes.…
Analysis of the root causes of Siemens FZH105 gearbox oil leaks: sealing, ventilation and installation errors
1. Introduction Operational reliability of industrial equipment is critical for the continuity of production processes. Oil leaks from gearboxes, although often perceived as a minor…
Pump Cavitation Root Cause Analysis: NPSH Investigation, Diagnostic Vibration Signatures, and Corrective Strategy
A forensic root cause analysis of centrifugal pump cavitation traced to NPSH deficit caused by solenoid valve fouling and thermal exceedance. Includes diagnostic vibration signatures,…
Analysis of Coupling Failures: Misalignment, Torque Overload and Fatigue Cracking in the Festo Model 159506LR-1/8-G-7
1. Introduction: The Symptom That Triggers the Investigation During a scheduled shutdown at a food processing plant in Mexico, a maintenance technician detected an abnormal…
Root Cause Analysis: Oil Leak in Reducer — Seal Selection, Ventilation and Assembly Errors
Root cause analysis of oil leak in a reducer coupled to the REXROTH PGH5-21/080RR11VU2 pump. Examines ventilation failures, seal selection and assembly errors with real…
Failure Analysis of Solenoid Valve Coils: Duty Cycle, Voltage and Thermal Management
1. Introduction: The Symptom That Triggers the Investigation During a scheduled shutdown at a food processing plant in Mexico, a maintenance technician detected a burning…