What is the primary objective of coupling alignment?

The primary objective of coupling alignment is to bring the center-lines of two shafts into alignment. This alignment ensures that the shafts are properly connected, which is crucial for the efficient operation of machinery. When the shafts are misaligned, it can lead to increased wear and tear on the coupling, vibration, and excessive heat generation, all of which can ultimately lead to equipment failure.

Proper alignment is essential because misalignment can cause uneven loads to be placed on the machinery, leading to premature component wear and potential breakdowns. By ensuring that the center-lines of the shafts are aligned, not only is the mechanical efficiency improved, but it also prolongs the life of the equipment and reduces the likelihood of maintenance issues.

The other options may relate to the overall performance of machinery but do not directly address the core purpose of coupling alignment as accurately as bringing the center-lines of the shafts into alignment does. Reducing noise, enhancing speed, and balancing workload may be affected positively through proper alignment, but these are not the primary objectives in the context of coupling alignment.