Method of SKF bearing lubrication and maintenance on a regular basis to avoid malfunction - bearing knowledge

1, grease lubrication of SKF bearing and lubrication is the best in the equipment downtime and implementation of the plan and added on a regular basis, at the same time, the old rid grease or via the drain the old oil out empty. Before adding fresh grease injection nozzle should be wiped clean. If there is no zerk bearing box, should open the bearing box cover or end cover, in order to remove the old grease, clean up after, supplement the same type of fresh oil. 2, lubricating oil, check the oil level of lubricating oil and the oil, in general, a normal oil level equipment oil level Windows or mark a third - Two-thirds of the range. Oil compensating way for oil cup, the display of the oil level represents oil compensating ability, and the bearing box oil level is to meet operation requirements, oil cup CPC a lower than a quarter of its total volume filling oil may be considered. Check and repair method oil, remove a small amount of oil as a sample and fresh oil, has the ability to unit may be considered for oil testing, to ensure the oil qualified. If the sample looks like clouds, so may be mixed with water as a result, people often say that oil emulsification, at this time should replace the lubricating oil. If the sample cheng dark color or thick, then may say lubricating oil has begun to carbonization, should be replaced the old oil thoroughly. If possible, use fresh oil to wash oil. Oil change, should ensure that the replacement with new and old the same type of lubricating oil, adding the meet the requirements of oil level. Use of the lubrication system of oil bath type, if the oil temperature 60 ℃ ( 140°F） The following, and no pollution of lubricating oil, the replacement of a lubricating oil a year. If the oil temperature at 60 100℃（ 140 - 210°F) Need to change four times a year, the lubricating oil. If the oil temperature at 100 - 120℃（ 210 - 250°F) , you need to be replaced every month lubricating oil. If the oil temperature at 120 ℃ ( 250°F) Above, the need to replace a weekly lubricating oil. The correct installation and maintenance is an important factor for normal operation of SKF bearing, at the same time, must pay attention to maintain the purity of the bearing. Bearings must prevent polluted by contaminants and moisture, must have a correct installation and lubrication. In addition, the design of the bearing arrangement, the condition of the oil seal, the form of a lubricant and change cycle and special maintenance also play an important role, must be attention. Imported bearing common faults as follows: 1, the tile surface corrosion: spectrum analysis found that non-ferrous metal element concentration anomaly; Iron spectrum appeared a lot of non-ferrous metal components in sub-micron wear particles; Lubricating oil excess moisture, acid value exceeds bid. 2, a shaft neck surface strain: iron spectrum have iron series cutting grinding grain or black oxide particles, metal surface heat tint. 3, shaft neck surface corrosion: spectrum analysis found that iron concentration is unusual, there are a lot of iron in iron spectrum of submicron particles, water or high acid value oil paint. 4, surface strain: iron spectrum found cutting abrasive, abrasive ingredients for non-ferrous metal. 5, tile back micro wear: spectrum analysis found that iron concentration is unusual, there are a lot of iron in iron spectrum wear submicron particles, lubricating oil moisture and acid value anomalies. Under the condition of fluid lubrication, sliding surface is lubricating oil without direct contact, also can greatly reduce the friction loss and wear of surface oil film also has a certain vibration absorbing ability