First of all needs to be emphasized is, is important to keep bearings lubricated and clean. So before we check the bearings, you should clean the bearing surfaces and perimeter of the disassembling bearing parts. We should note that oil seals are very fragile parts, that require extra care in inspections and disassembling use excessive force to avoid the damaged parts. Then carefully check the bearing oil seal and neighbouring parts, if it is showing a bad symptom, be sure to replace the bad oil seals will result in damage, bearing cloud is not normal and the cause of equipment downtime.
Secondly, we also need to check the bearing lubricant. Lubrication is very important, not just for bearings, bearings for all. But note that the bearings should not be adding too much grease. On checking method for the bearing lubricant is: wash the lubricants in friction between the two, if the presence of pollutants, is to feel out; or coated by a thin layer of lubricant on your hand, and then make the rays. Then there is the replacement of lubricants. After purging old engine oil, the oil-lubricated bearings, if you can, then pour fresh oil and let the machine at low speed of rotation for a few minutes. Oil collects residual contaminants as much as possible, and diarrhea in addition to the oil again. Note: the oil is best to filter before use. Use grease-lubricated bearings when replacing the grease, use Joe should avoid contact with cotton to any parts of the bearing. Fiber because these residues may wedge between rolling and cause damage, especially small bearing applications need to pay even more attention to this issue.
Finally, you need to note that cover exposed bearings. When you check the bearings, bearing must not be exposed to contaminants or moisture environment. If the work is broken, to machine his paper plastics or similar materials. If checks are performed without demolition may case cleaning bearings without masking, stained oil solvent coating with a brush (whitespirit) cleaning, then wipe dry with a lint-free cloth or compressed air to dry (be careful not to let the bearing Assembly rotate). To a small mirror and a similar probe of the kind used by dentists to track surface, to check the bearing retainer and beads. Could not be cleaned and sealed bearings with cover or dust; just wipe the external surfaces can be. If the bearing is damaged replace situations that required more



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