Solution to heating damage and judgment of fag thrust ball bearing
Solution to heating damage and judgment of fag thrust ball bearing
2022年4月1日
What are the effects of different structures of IKO combined bearing on vibration and noise
What are the effects of different structures of IKO combined bearing on vibration and noise
2022年4月2日

Precautions for fag cylindrical roller bearing burn

  • The so-called fracture refers to a small part of the fracture due to the impact or excessive load exerted by the cylindrical roller bearing on the retaining edge of the raceway wheel or the local part of the roller angle.
  •  The reason for this is that the fag bearing was hit during installation. Excessive load. Poor use such as falling.Precautions for fag cylindrical roller bearing burn
  • Precautions for fag cylindrical roller bearing burn
  • Corresponding measures shall be taken to improve the installation method (hot installation and appropriate tool clamp). Correct load conditions. Fag bearing is installed in place to support the retaining edge.Precautions for fag cylindrical roller bearing burn
  • State when fag bearing is jammed
  • The so-called jamming injury is the surface damage caused by the micro burn of the part of the cylindrical roller bearing caused by fag surface injury. Linear scars in the circumferential direction of slide surface and rolling surface. The cycloidal scar on the end face of the roller is close to the clamping wound on the shaft ring surface of the end face of the roller.Precautions for fag cylindrical roller bearing burn
  • Causes of fag bearing jamming
  • Excessive load and preloading. Poor lubrication. Foreign body bite. Inclination of inner ring and outer ring and deflection of shaft. The accuracy of shaft and bearing housing is poor.
  • Measures for fag bearing jamming.Precautions for fag cylindrical roller bearing burn
  • Check the size of the load. The preloading shall be appropriate. Improve lubricants and lubrication methods. Check the accuracy of shaft and bearing housing.Precautions for fag cylindrical roller bearing burn
  • The so-called burn damage state of the bearing refers to that the raceway wheel, rolling element and cage of the bearing are heated sharply during rotation until they change color, soften, deposit and damage.
  • The second may be excessive load (excessive preloading). Excessive speed. The clearance is too small. Intrusion of water or other foreign matters. If neither of the above two cases is true, the accuracy of the shaft and bearing housing is poor and the deflection of the shaft is large. Seeing this, I think everyone wants to know the solution. 
  • First of all, we should study the lubricant and lubrication method, select the right bearing lubricant and its dosage, and correct the choice of bearing. The clearance and preloading of cylindrical roller bearing should be studied, and the sealing device should be improved. Check the accuracy of the shaft and bearing housing.
  • According to the inspection results, if the cylindrical roller bearing is found to be damaged or abnormal, please find out the causes and formulate countermeasures according to the phenomenon of bearing damage. 
  • In addition, according to the inspection results, if there are the following defects, the cylindrical roller bearing can no longer be used and needs to be replaced with a new bearing.
Precautions for fag cylindrical roller bearing burn

Precautions for fag cylindrical roller bearing burn

  • a. Any one of the inner and outer rings, rolling elements and cage has cracks and fragments.
  • b. Any one of the inner and outer rings and rolling elements has peeling.Precautions for fag cylindrical roller bearing burn
  • c. The raceway surface, retaining edge and rolling element are significantly jammed.
  • d. The cage is seriously worn or the rivets are loose.
  • e. The raceway surface and rolling element are rusty and scarred.
  • f. The rolling surface and rolling body have significant indentation and indentation.
  • g. There is creep on the inner diameter surface of the inner ring or the outer diameter of the outer ring.
  • h. Overheated and discolored.
  • i. The seal ring and dust cover of grease sealed bearing are damaged seriously.
Control of Material Factors Affecting Bearing Life