2013年8月8日星期四

while causing the bearing to volume expansion, each extrusion pressure


In addition, when the external load on the bearing and does not rotate, due to external vibration can cause the bearing inner ring raceway indentation, over time will lead to the raceway flaking, peeling debris is more harmful to the bearing, in order to prevent these incidents occurrence in the daily work, effective methods can be used to eliminate the vibration source and vibration, maintain good lubrication, the backing bearings can be applied to the initial light load, the rolling body in good contact with the roll, to improve the ability of seismic also with the hole in the installation misalignment will cause bearing failure.
 In practical work due to poor lubrication or excessive work overload, excessive heat generated by friction and soften bearing steel, while causing the bearing to volume expansion, each extrusion pressure, when it reaches a certain level, the bearing will be locking the shaft on. Volume when the bearing overheats the holding bracket rolling gap becomes smaller, the stress concentration on the retainer, with the time, the cage will be broken, thereby accelerating the rate of bearing failure.
 With the gap effect, the gap between the shaft and the shaft is too large, the relative movement between the two, one with the shaft section of the gap increasing excessive wear, leading to Roller bearing failure: two of the bearing cracks, impact accuracy of movement. These causes of premature bearing failures are detrimental to our actual work, so study how to avoid premature bearing failure and prolong life is very practical value.
 To prevent premature bearing failure is the most effective way to avoid the above analysis of these factors contribute to a variety of factors and conditions: First, the bearing should be selected prior to use, taking into account the size of the noise, the size of the rigid, bearing radial fissures size, the size of rotational torque. Choice of lubricant, according to the bearing of the work environment, the type of lubricant in use produce different media noise. Such as grease lubrication oil lubrication noisy than the more well-lubricated bearings is to extend the life of the first condition

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