Causes of Misalignment
Misalignment is typically caused by the following conditions:
Inaccurate assembly of components, such as motors, pumps, etc.
Relative position of components shifting after assembly
Distortion due to forces exerted by piping
Distortion of flexible supports due to torque
Temperature induced growth of machine structure
Coupling face not perpendicular to the shaft axis
Soft foot, where the machine shifts when hold down bolts are torqued.
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