A
Study of Rolling Element Bearing Defect Analysis
Lin Liu,
ZhuangLi
SpectraQuest Inc., 8201 Hermitage Road, Richmond, VA 23228
Published: Sep, 2006
Abstract
Extensive literature is available on diagnosing rolling element bearing
defects using vibration analysis. However, answers to many questions
remain elusive, such as the effects of rotor weight (load), speed,
and damage severity on the vibration signature.
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Introduction
SpectraQuest plans to publish a series of
articles addressing these issues. This article, first in the series,
will cover the effect of rotor weight, speed, and defect severity
on outer race fault spectra.
SpectraQuest’s Machinery Fault Simulator (MFS) provides a
platform to study bearing faults. The following tests are performed
on MB ER-10K bearings with lightly and moderately faulted outer
race. To acquire and analyze data, VibraQuest data acquisition
and analysis software, SpectraPad portable data acquisition device,
and six PCB accelerometers were used.
Fig: Test Setup – with one loader installed
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