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Methods to avoid vibration during operation of fag outer spherical bearing
Methods to avoid vibration during operation of fag outer spherical bearing
2022-04-03
Precautions for fag cylindrical roller bearing burn
Precautions for fag cylindrical roller bearing burn
2022-04-04

Improper treatment of Vibration Affecting the stable operation of IKO joint bearing

  • Grease lubrication includes the sealing method of filling grease in the sealed bearing in advance, and the filling grease supply method of filling an appropriate amount of grease in the shell and replenishing or replacing it at regular intervals.
  • In addition, the centralized grease supply mode with pipes connected to each lubrication place is also adopted for the machinery with multiple IKO bearings that need lubrication. 
  • Grease lubrication can be filled with grease for a long time without supplement, and the structure of its sealing device is relatively simple, so it is widely used. Oil lubrication is relatively simple. Regular lubrication can improve the service life of joint bearings.

Improper treatment of Vibration Affecting the stable operation of IKO joint bearing

  • The imported bearing is allowed to make slight running noise during operation. If the noise is too loud or there is abnormal noise or impact sound, it indicates that the bearing is faulty.Improper treatment of Vibration Affecting the stable operation of IKO joint bearing
  • The causes of rolling bearing noise are complex. One is the wear of the mating surfaces of the inner and outer rings of the bearing. Due to this wear, the matching relationship between bearing and shell, IKO bearing and shaft is damaged, resulting in the axis deviation from the correct position and abnormal noise when the shaft moves at high speed. 
  • When the joint bearing is tired, the metal on its surface will peel off, which will also increase the radial clearance of the bearing and produce abnormal noise. In addition, insufficient bearing lubrication, dry friction and bearing breakage will produce abnormal sound. 
  • After the bearing is worn and loose, the cage is loose and damaged, which will also produce abnormal noise.Improper treatment of Vibration Affecting the stable operation of IKO joint bearing
Improper treatment of Vibration Affecting the stable operation of IKO joint bearing
  • When the mechanism is running, the part where the bearing is installed is allowed to have a certain temperature. When touching the mechanism shell by hand, it should be normal to feel that it is not hot. Otherwise, it indicates that the bearing temperature is too high.Improper treatment of Vibration Affecting the stable operation of IKO joint bearing
  • The reasons for high bearing temperature include: the quality of lubricating oil does not meet the requirements or deteriorates, and the viscosity of lubricating oil is too high; The mechanism assembly is too tight (insufficient clearance); The assembly of spherical plain bearing is too tight; The bearing race rotates on the shaft or in the shell; Excessive load; Broken bearing cage or rolling element, etc.
  • Selection and control of shaft and bearing housing tolerance: the bearing shall rotate flexibly without blocking feeling after being pressed into the bearing. If there is obvious inflexible rotation, it indicates that the size of the shaft is too large and the tolerance should be reduced. 
  • If the IKO bearing rotates by hand after being pressed into the shaft, there is an obvious “rusty” feeling, it may be that the tolerance of the shaft is too large or the roundness of the shaft is not good. Therefore, when controlling the tolerance of shaft and bearing chamber, it is also necessary to control the roundness. At present, many domestic manufacturers only control the tolerance, not the roundness.Improper treatment of Vibration Affecting the stable operation of IKO joint bearing
  • Because the joint bearing is a high-precision product, if it is not assembled properly, it is easy to damage the bearing channel and lead to bearing damage. The bearing shall be equipped with a special mold during assembly, which cannot be knocked at will. When pressing the shaft, only the small ring can be stressed, and when pressing the large ring, only the large ring can be stressed. 
  • Air pressure or hydraulic pressure is required during assembly. During press assembly, the upper and lower touch shall be outside the horizontal state.Improper treatment of Vibration Affecting the stable operation of IKO joint bearing
  •  If there is inclination, the bearing channel will be damaged due to stress and the bearing will produce conduction sound. In the past, many manufacturers thought it was the bearing problem.
  •  After our continuous publicity, now the motor factory has realized that the main problem is the insulating paint. The main reason for this problem is that the acidic substances volatilized from the insulating paint form corrosive substances at a certain temperature and humidity, which corrodes the IKO bearing channel and leads to bearing damage. 
  • At present, the problem can only be to select good insulating paint and assemble after drying and ventilation for a period of time.Improper treatment of Vibration Affecting the stable operation of IKO joint bearing
Solution to abnormal damage of IKO plastic bearing
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