Impact and control method of rolling bearings of larger models in under purely radial load at low speed operation, smaller due to the centrifugal force of the rolling, load-free area in the roll cage of rolling elements will shocks or road noise. But as the speed increases, this noise will disappear. On the rolling control method of pulse sound: appropriate reduction of radial clearance, reasonable structure, material compliance of steel rolling mill bearing.
In General, if used correctly bearing, you can use up to reach fatigue life. But there are accident prematurely damage cannot be used. This early damage and fatigue life, known as the quality limits of breakdowns or accidents. Result from installation, use, not paying attention on the lubrication from outside intrusion by foreign bodies, shafts, case study on thermal effect of inadequate.
On bearing failures, such as: roller bearing rings of ribs hurt, as a reason to consider, for oil lubricant inadequate, inappropriate, construction defects, intrusion of foreign bodies, rolling mill bearing misalignment, shaft deflection is too large, there will be these reasons coincide.
Therefore, only investigated damage, it is difficult to know the real causes of injury. However, if you know the bearing condition of used machinery, used, constructed around the mill bearing, understand the situation before and after the accident, combined with several causes bearing damage and visit, they can prevent similar accidents happening again.
The creak of the bearing and its control method is mill creak bearing in all occasions the possibility of harsh metal sound, mostly in the larger models of grease lubrication bearings, more deterioration of the base oil grease, oil hardly occurs. In addition, more prone to occur during the winter months, when subjected to a purely radial load, and susceptible to radial clearance, and with models of different sizes, occur at a specific speed range easily, both continuous and intermittent. External ring road, take the special processing methods can prevent the emergence of creak, if necessary, select the bearing, or appropriate reduction of radial clearance of bearings, using high performance greases and improve rigidity of the rolling mill bearing parts to match.
Roller roller bearing and its control method is when the bearing operation, rolling rolling rolling on the pavement and making a slippery continuous sound are all typical of rolling mill bearing basic sound. General bearing rolling road sound with other sounds. Ball bearing roller is irregular, frequencies in the above 1000Hz, the frequency of rate changes with the speed, but the total sound pressure level increases with the acceleration of the speed of.