Which is a symptom of misalignment in rotating machinery?

Unusual vibration patterns are a key symptom of misalignment in rotating machinery. When components within a machine are not properly aligned, it can lead to uneven forces being exerted during operation. This results in abnormal vibrations, which can often be detected using vibration analysis techniques. These unusual vibrations can have varied characteristics, including frequency and amplitude, that can be monitored to assess the alignment condition of the machinery.

In contrast, misalignment typically leads to reduced efficiency, increased noise levels, and potentially higher temperatures due to excessive wear and tear on the components. Proper alignment helps ensure that the machinery runs smoothly and efficiently, minimizing vibration and other operational issues.