To successfully align shafts, which two misalignment conditions must be corrected?

When aligning shafts, it is essential to address both angular and offset misalignment conditions to ensure smooth operation and reduce wear on the machinery. Angular misalignment occurs when the shafts are not aligned in the same plane and form an angle with respect to each other. This can lead to increased vibration and stress on the bearings.

Offset misalignment happens when the centerlines of the shafts are parallel but not directly aligned with each other, which can result in excessive wear and potential failure of the coupling or other components. By correcting both these misalignment types, the shafts achieve proper alignment, enabling efficient power transfer and minimizing the risk of mechanical failures. This understanding of shaft alignment is fundamental for maintaining equipment reliability and longevity in various industrial applications.