Root Cause Analysis: Pitting and Spalling in SKF 402121 Industrial Reducer Gears
1. Introduction In the manufacturing sector, the reliability of machinery is a critical factor for operational continuity. The unexpected failure of a gear reducer can…
Root cause analysis
Expert articles on root cause analysis: failure investigation and prevention strategies for industrial equipment.
Fault Analysis of Coupling Failure: Misalignment, Torque Overload and Fatigue Cracking
A clutch failure in a machine tool was analyzed. The causes are misalignment, torque overload and fatigue. Practical solutions and preventative measures are presented. Use…
Root Cause Analysis: Solenoid Valve Winding Burnout: Duty Cycle, Voltage and Thermal Management
Burning out of the winding of a Heidenhain 688014-01 solenoid valve was caused by thermal overload, inadequate voltage, and lack of ventilation. Root cause analysis…
Root Cause Analysis of Improper Thermal Relay Tripping: Ambient Temperature, Load Profile and Sizing Errors
Improper tripping of the FIBRO 2962.78.030.12.0160 thermal relay is due to motor overload and high ambient temperature. To prevent failures, it is essential to review…
Root Cause Analysis: Increased Backlash in Ball Screw (REXROTH 2FRM6B36-3X/6QRV)
Increased play in the REXROTH 2FRM6B36-3X/6QRV ball screw can be caused by loss of pretightening, contamination or lubrication system failure. This article presents a root…
Root Cause Analysis: Why Transmission Belts Overheat – 5 Common Causes and Diagnostic Flowchart
Overheating transmission belts are a critical failure symptom that signals an underlying issue in the drive system. This article identifies five common causes and provides…
Solenoid Valve Coil Cause Analysis: Duty Cycle, Voltage and Thermal Management
Analysis of the cause of the failure of the solenoid valve coil type FIBRO KSF45-R-1-2967-0-2-09-6-002. Determining the cause of failure and recommendations for prevention. List…
Analyzing the root causes of pneumatic valve seizure: contamination, moisture and lubrication failure
Seizure of the pneumatic valve can cause production losses. After the analysis, contamination, moisture and insufficient lubrication were found. Addressing these causes can reduce the…
Root Cause Analysis: VFD Induced Bearing Currents – Shaft Stress, EDM Damage and Mitigation Strategies
VFD-induced bearing failure is due to eddy currents, shaft stress, and lack of protection. This article analyzes causes, effects and practical solutions for technicians and…
Analysis of bearing failures induced by frequency converter bearing currents in hydraulic pumping systems
This article examines premature bearing failures of electric motors driven by frequency inverters in hydraulic pumping systems. It details the evidence of electrical discharge damage…
Root Cause Analysis of Linear Rail Wear: Contamination, Preload Errors and Lubrication Failures
Wear on linear rail identified in robotic system. Causes: contamination, inadequate preload and insufficient lubrication. Corrective actions and checklist for preventive maintenance. Consult the UNITEC-D…
Root Cause Analysis of Coupling Failures: Misalignment, Torque Overload and Fatigue Fracture
The failure of the Festo 193144 coupling was caused by misalignment, torque overload, and lack of monitoring. This article analyzes the root cause, presents a…