Canadian Condition Monitoring Institute, cancmi

While misalignment has no measurable effect on motor efficiency, correct shaft alignment ensures the smooth, efficient transmission of power from the motor to the driven equipment. Misalignment produces excessive vibration, noise, coupling- and bearing-temperature increases, and premature failure of bearings, couplings or shafts. There are three types of motor misalignment: Angular misalignment occurs when the motor is set at an angle to the driven equipment. Misalignment and soft food are common problems that rotating and stationery equipment encounter that can be detected by our condition monitoring services. CANCMI can also provide laser alignment services to return equipment to its correct state. When Condition Monitoring indicated alignment, CANCMI provides laser alignment services to put things right. CANCMI provides laser alignment services through experienced technicians who will ensure that equipment is accurately aligned once services are complete. Parallel misalignment occurs when the two shaft centerlines are parallel, but not in the same line. Combination misalignment occurs when the motor shaft suffers from both angular misalignment and parallel misalignment simultaneously. Larger motors are usually directly coupled to their loads with rigid or flexible couplings. Rigid couplings do not compensate for motor-to-driven-equipment misalignment. Flexible couplings also can reduce vibration transmitted from one piece of equipment to another. When misalignment is identified in rotating machinery, it is important that this misalignment be corrected to high accuracy, to ensure that equipment does not continue to work out of alignment, causing high stresses and potential failure. Alignment services support your condition monitoring program.

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