Full definition
Precision technique for aligning rotating machinery shafts using laser emitters and position-sensitive detectors, achieving accuracy of ±0.001-0.01 mm. Corrects angular, parallel, and combined misalignment far faster than dial indicator methods. Proper alignment reduces bearing loads by up to 50% and extends seal life. Leading instruments: SKF TKSA 71/80, Fixturlaser NXA Pro, Pruftechnik Rotalign Touch. Tolerances per ISO 10816 and API 686. Studies show 50% of premature bearing failures trace to misalignment.