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Fundamentals of Rotating Machinery DiagnosticsAvailable to Purchase
ISBN:
9780971408104
No. of Pages:
756
Publisher:
ASME Press
Publication date:
2002
eBook Chapter
20 High Radial Loads and Misalignment Available to Purchase
Page Count:
20
-
Published:2002
Citation
Bently, DE, Hatch, CT, & Grissom, B. "High Radial Loads and Misalignment." Fundamentals of Rotating Machinery Diagnostics. Ed. Bently, DE, Hatch, CT, & Grissom, B. ASME Press, 2002.
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The most common complaint by operators of rotating machinery is high vibration. The second most common complaint is high bearing temperature. High bearing temperature is almost always associated with a high dynamic or static radial load; such a load can be caused by process conditions, various mechanical factors, coupling malfunctions, or misalignment. Radial loads and misalignment have similar symptoms; in fact, misalignment usually produces high radial loads in one or more bearings. Thus, the diagnosis of both of these malfunctions uses closely related techniques. For that reason, we will study both malfunctions in this chapter.
Topics:
Stress
Static Radial Loads
What Is Misalignment?
Temperature Changes and Alignment
Causes of Misalignment
Symptoms of High Radial Load and Misalignment
Bearing Temperature
Vibration Changes
Stresses and Wear
Abnormal Average Shaft Centerline Position
Orbit Shape
Rub
Fluid-Induced Instability
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