How to maximize the life of the bearing? (1)

Source: Bearing network time: 2018-01-17

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In theory, the service life of the rolling bearing in a centrifugal pump is 20,000 to 80,000 hours; however, the actual life depends on many factors. Premature bearing failure will lead to high-value equipment strikes; sometimes even more serious results will be incurred. The bearing professor at NKE (Austria) offers some simple but useful tips for optimizing bearing functions.
Satisfactory bearing life begins with the correct bearing selection. From the beginning; the bearing designer extends the bearing life and equipment functions by picking the right bearings for different applications. This process has to consider many elements; for example, loads , hardness, bearing life guess, operating environment, etc.
Proper storage guidelines; all bearings should be kept in their original packaging before the equipment. They need to be left in a hygienic, moisture-free, relatively constant temperature environment. Rolling bearings should be kept away from dust, water and corrosive chemicals. Swinging and sensation may permanently damage the mechanical function of the bearing; thus it is necessary to prevent sensation during handling and storage.
Basically; all bearings are required to be stored horizontally; because some of the heavier bearings are placed vertically after being placed vertically; they may be deformed by their own weight.
Pre-coated grease (or sealed) bearings require unique care; because the grease will change its density after long-term storage, so that when the bearing is first used; there will be a certain degree of conversion noise. Thus; Placement time should be controlled according to the first-in, first-out criteria.
Hygiene is very important for rolling bearings. The surface roughness of the bearing ring transition surface and the rolling element is generally 1/10 Î¼m; such a smooth appearance is very sensitive to the damage caused by contaminants. The smooth layer between the transition surfaces is generally 0. 2 ~1Î¼m; particulate impurities larger than the particle size of the smoothing agent will be over-rolled by the rolling element and partial pressure will occur in the bearing steel; eventually it will cause permanent data fatigue. In addition to this; the dust particles in the external environment can be fine. Up to 10Î¼m; damage to the bearing is also formed. Therefore, a hygienic and dust-free environment is essential for bearing storage and equipment.
All preparatory equipment bearings should be carefully equipped with equipment and disassembled. Professional professors estimate; 16% of premature bearing failure conditions are due to incorrect equipment. For many equipment (such as in production equipment) Speaking; generally must strictly control the conditional equipment; also can choose the appropriate bearing equipment.
However; in the protection or exchange work; the environment is diverse. Therefore; to ensure the longest bearing life; all preparatory work is necessary for bearing equipment.
First of all; relevant documents; such as drawings, protection manuals, product specifications, etc. through careful study. Next; all bearing components; such as shafts, spacers, covers, gaskets, etc. need to adhere to a certain degree of cleanliness; from pollution. Nearby parts The condition should also be carefully examined.

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