What type of misalignment occurs when the centerlines of two shafts are not parallel?

Angular misalignment occurs when the centerlines of two shafts are not parallel, which means that while the shafts may be aligned at a certain angle, they do not perfectly parallel each other. This type of misalignment typically results in increased wear on bearings and couplings, reduced efficiency, and added vibrations within the system. It is crucial to identify and correct angular misalignment during installation or maintenance to ensure the longevity and proper functioning of rotating equipment. This misalignment can happen when components are installed incorrectly or when the supporting structures sag or shift over time. Understanding and addressing angular misalignment is key to maintaining effective machinery operation.