A belt alignment tool is a precision maintenance instrument used to identify and correct pulley and sheave misalignment in belt-driven machinery. It helps maintenance teams accurately detect angular, parallel, and axial alignment errors in motors, pumps, fans, compressors, conveyors, and other belt-driven equipment.

Correct belt alignment helps reduce belt wear, pulley damage, vibration, bearing stress, energy loss, and unplanned equipment downtime. Laser-based belt alignment tools provide fast and accurate measurements, helping maintenance teams achieve reliable alignment and improve the service life of drive components.