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Impacts during Installation Caused Flaking by Indentations
Flaking by indentations, caused by impacts during installation, led to the failure of bearings #6324 and #6322 in a mot…
Oil Whirl and Film Breakage in Hydro-Electric Power Plant
Oil whirl and film breakage issues in hydroelectric power plant vibration tests were resolved by oil separation.
Motor Shaft Current - Fluting Problem
Motor Shaft Current (Fluting) can damage both motor and counter equipment bearings, as seen in cases where liquid lubri…
Spindle Thrust Bearing Ball Wears
SPM Instrument recommended replacing thrust bearings in two critical machining workcenters after analysis. Pictures sho…
Air Handler Unit Misalignment and Belt Loose Problems
Despite replacing the motor base, bearings, and belts, the unit remained noisy due to severe sheave misalignment and a …
Pump Motor Coupling Rubber Deformation
BPFO harmonics detected, but outer bearing material intact; coupling rubber deformation observed.
Gearbox Wear Leading to Natural Frequency at a Cooler Fan
A client experienced repeated catastrophic failures of the cooling fan on an extruder main drive motor. IGS identified …
Flow Related Vibration at Vertical Pump
Vertical pump in engine room experiences high axial vibration at DE bearing.
How Do We Do Grease Analysis Correctly?
Grease analysis is often misunderstood and misused due to incorrect sampling, ignoring grease heterogeneity, using oil-…
Rotor Bar Crack in Cooler Fan
Vibration analysis indicated a rotor bar crack, confirmed by MCSA and inspection. The motor was replaced, reducing vibr…
Thrust Bearing Raceways Major Defect Case
Vibration analysis detected a major defect on both raceways of a thrust bearing, prompting its replacement.
VFD Electrical Flucttuations Related Bearing Failure
CMS vibration measurement detected a critical problem on the 800 kW VFD electric motor, caused by electrical fluctuatio…
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