Incorrectly aligned shafts and the consequences of this are behind more than 50 % of all malfunctions in rotating machines. This increases unscheduled downtime and therefore production losses. This, of course, increases overall maintenance costs. In addition, misaligned shafts increase vibrations and friction, which can increase the energy consumption considerably and cause premature bearing and seal damage.
With dual lasers, the method used in Easy-Laser®, the accuracy depends on distance A. The greater the distance, the greater the accuracy. With the single beam system, the possible accuracy depends on distance B between the detectors. This distance is usually very short so the detectors have room inside the receiver unit (normally about 50 mm). In reality, with the measurement units installed on each side of a coupling, distance A is, in most cases, always longer than distance B.
[1: housing, 2: laser LED, 3: detector, 4: laser beam].