One of the most overlooked steps while performing an alignment is the verification of the ‘E’ distance, better known as the coupling gap (between the movable and stationary hub). Too often this verification is not done after an alignment which can cause very bad surprise after the equipment’s start-up. This distance is a vital part …
One of the biggest challenge in mills causing headache and loss of time during laser alignment procedure is still coupling backlash. Certain type of couplings are designed to have backlash after installation. This infamous backlash is more than often the main cause of false measurements and repeatability issues during laser alignment correction step, thus causing …
COUPLING MOUNTING Before any alignment procedure, you should always check the condition and mounting of your coupling. Your laser alignment tools, align the center of rotation of your machine shafts, the laser will not tell you if your coupling is not installed or mounted adequately. The same rules apply for bent shafts. The above pictures, illustrates …
