KOYO bearing operation common faults and processing methods

Dynamic operation, from the beginning of the no-load speed, slowly up to the rated operating conditions. Test run to check the items, whether there is abnormal sound, KOYO bearing temperature, lubricant leakage or discoloration, and so on. If discovery is unusual, should immediately stop, check machine, when it is necessary to remove the bearing inspection. Bearing temperature, average according to the external temperature of the bearing. But using the oil hole directly measuring the temperature of the bearing outer ring more accurate. The bearing temperature, starting operation gradually increases, usually 1 ~ 2 hours after the temperature stability. If bad KOYO bearing installation, the temperature will rise sharply, abnormal high temperature. The reason such as lubricant, bearing clearance is too small, too much bad installation, excessive friction sealing device, etc. High-speed rotation, the choice of the ways of bearing structure, the lubrication error and so on is also the reason. Bearing the examination such as the rotation of the sound with a stethoscope, a strong metal noise, such as vision, irregular note that exception. Its reason has poor lubrication, shaft or precision bearing, bearing damage, foreign body intrusion, etc. 1, 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 in KOYO bearing lubricant, add some chemical additive, can reduce the bearing noise, on the basis of bearing noise from the original can be reduced. 3. 2 db, suitable for use in the micro or small bearings. Generally, if the correct use of bearings, can be used to achieve fatigue life. But there will be unexpected injury prematurely, no ability to use. This early damage, as opposed to a fatigue life, is called the quality using limit of fault or accident. Much due to the installation, use, do not pay attention on the lubrication, intrusion of foreign bodies from outside, to the shaft, shell heat affected study enough. About bearing damage status, such as: roller bearing ring guard card, as a reason to consider, lack of lubricant, not suitable for, for the defect of oil discharge structure, foreign invasion, bearing installation error, the deflection of the shaft is too large, also can have these reasons. If it is not detachable, is trouble! Want to use the method of damage type. With precision screwdriver into the side cover of the seam, forcibly pry up the side cover, don't doubt, that's right, but the side cover can't go back! Well, to lose! Remember, as long as the down side, open on both sides is ruined! Therefore, only investigate bearing damage, the real reason is hard to come by injury. However, the use of machinery, if you know the bearing conditions of use, bearing the surrounding structure, to get hold of before and after the accident, in combination with several damage status and causes of KOYO bearing, can prevent the similar accident happen again.