Shaft alignment is the process of positioning two or more rotating shafts so their centerlines are in the correct relative position. This ensures that connected components – such as a motor and a pump – run smoothly together.

In a properly aligned machine, the shafts are set so that they meet the tolerance required for the application. They are not necessarily perfectly straight in all conditions, since factors like thermal growth and operating loads must be considered.

Correct shaft alignment reduces vibration, minimizes wear on bearings and seals, and lowers the risk of unplanned downtime. It also improves energy efficiency and helps extend the service life of the machine.

A laser shaft alignment tool is a system that uses precision laser technology to measure the relative position of two rotating shafts. It typically includes two measuring units, brackets, a display unit, and software that guides the user through the alignment process and generates documented results.

Laser shaft alignment tools provide faster, more accurate, and repeatable measurements compared to methods like dial indicators or straightedges. Advanced systems can also account for factors such as thermal growth and dynamic machine movement, helping ensure more reliable alignment results.