WHEEL BEARINGS AND HUBS 101: WHAT YOU NEED ... - automotive wheel hub
Precision-aligned machines run more smoothly and suffer fewer failures - plus they consume less energy. Precision alignment must be part of your reliability improvement strategy.
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The course can be delivered at your site, enabling your crew to put what they have learned into practice. The course includes the animations and simulations, but the experienced instructor can also use “test-rigs” to demonstrate how to perform each of the tasks.
Unfortunately, it is common around the world for organizations to purchase laser alignment systems without providing the necessary training on how to use the system, or what it means to achieve precision alignment. As a result, maintenance technicians simply follow on-screen prompts and “go through the motions” to align the shafts. It is, therefore, common for machines to be operated with misaligned shafts and strained casings (due to soft foot).
It is simply not adequate to use a straightedge or dial indicators (unless trained in the precision use of the dial indicators). Precision alignment and the elimination of soft foot (base and foot flatness, pipe strain elimination, etc.) are some of the fundamental skills of an organization seeking to improve reliability.
It is critical that the maintenance technicians appreciate the importance of precision alignment and they understand what the measurements are telling them. They must also understand how to overcome the challenges that present themselves due to different machine designs and mounting issues.
Achieving precision alignment (and eliminating soft foot) is one of the keys to achieving reliable rotating machinery. With each rotation of the shaft, misalignment puts the shaft, coupling, bearings, seals, and the support structure under undue stress and strain. It sucks the life out of the machine and consumes additional energy.