Principle of combination of INA bearings common troubleshooting measures

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. Impact of the rolling element and its control method for larger models of ball bearing or bearing under pure radial load speed, due to centrifugal force is lesser, roller in the rolling body will impact the load area or race and making noises. But with the increase of rotational speed, the noise will disappear. INA bearing raceway groove sound sound and its control method is when combined bearing operation, its rolling on the surface of the raceway and rolling body a line of continuous sound, is unique to occur in all rolling bearings of the basic sound. General bearing ring raceway is combined with other sounds. Ball bearing raceway is irregular, frequency above 1000 hz, its main frequency does not change with speed, but the sound pressure level increases with speed to speed up. Raceway large import bearings, the rolling sound of sound pressure level decrease with the increase of the viscosity; The raceway small bearings, the sound pressure level in the viscosity increases to about 20 was/s above, from decreased to increase somewhat. The rigidity of the bearing, the greater the raceway of sound pressure level is lower. Such as radial clearance is too small, the sound pressure level and the main frequency of the raceway ring can increase sharply with the decrease of radial clearance, if you don't want it to have a voice, the best thing to do is to turn off the electricity, ha ha, actually we can use some measures to maximize reduce the noise of INA bearings, generally speaking, to control the combination of bearing noise impact, it must take countermeasures in view of the source of the noise, and to receive the cure effect. Happen more easily in winter, when the INA bearing of pure radial load, the radial clearance are prone to big occasions, and with different size, easy to happen in a certain speed range, both continuous and intermittent. External ring raceway take special processing method can prevent the occurrence of roll ring, can choose this combination bearings, if necessary or appropriate to reduce bearing radial clearance, the use of high performance grease and improve to suit the bearing parts of rigidity.