Bearing vibration and noise is a sign of damage, it is important to maintain

Bearing vibration and noise is a sign of damage, increase of bearing vibration and noise is an important start, sometimes a different sound, but the change of vibration increase is relatively slow, at this point, the thrust self-aligning roller bearing kurtosis value began suddenly reaches a certain value. We believe that the bearing is characterized by the early failure. At this time, requires that the bearing is closely monitoring, pay close attention to the change. Since then, bearing kurtosis value began falling fast, and is close to normal, and significant increase in vibration and noise, it began to accelerate the increase, when the vibration more than standard ( Such as ISO2372 standard) , its bearing kurtosis value also began to increase rapidly, when more than vibration standard, and kurtosis value is more than normal ( Available kurtosis relative standard) When we think of roller bearing fault, has entered the late need to timely maintenance equipment, replace the bearing. Late show bearing fault feature to severe fault ( For bearing damage, such as holding shaft commonly, burns, sand spallation, raceway, wear beads, etc. ) Most of time not more than a week, the bigger the equipment capacity, the faster the speed, the shorter the time interval. Therefore, in the practical thrust spherical roller bearing fault diagnosis, once found late fault characteristics, should be decisive judgment is bearing fault, arrange inspection as soon as possible. Lubrication on the fatigue life of rolling bearing, friction and wear, temperature rise, vibration and so on have important influence, not the normal lubrication, bearing cannot work. Analyze the failure reasons of bearing show that about 40% of the bearing damage is related to bad lubrication. Therefore, good lubrication of the bearing is an effective measure to reduce the bearing friction and wear. In addition, the bearing lubrication and cooling, antirust and seal, a number of roles, such as ease, thrust spherical roller bearing lubrication effect can be illustrated briefly as follows: a. The contact between two rolling or sliding surface formed between a layer of oil film separates two surface, reduce the friction and wear of contact surface. b。 Using oil lubrication, especially the circulating oil lubrication, oil mist lubrication and oil lubrication, the bearing lubricating oil take most of the internal friction heat, effective heat dissipation effect. c。 Using grease lubrication, can prevent external dust and other foreign body into the bearings, sealing effect. d。 Lubricant function to prevent corrosion of metal. e. Extend the fatigue life of bearing. Bearings, comfortable and durable, )