Three common abnormal phenomena of bearing and their causes
Phenomenon one, irregular noise
1 reasons: excessive clearance, countermeasures: research and coordination and bearing clearance, modify the preload.
Reason 2: foreign body invasion, countermeasures: study the replacement of bearings, cleaning the relevant parts, improve the sealing device, the use of clean lubricant.
Reason 3: spherical injury, stripping, countermeasures: replacement of bearings.
Phenomenon two, abnormal temperature rise
Reason 1: lubricant too much, countermeasures: reduce lubricant, moderate use, choose stiffer grease.
Reason 2: lubricant is insufficient or not suitable, countermeasure: add lubricant, choose proper lubricant.
3 reasons: abnormal load, countermeasures: modify the coordination, study the clearance of the bearing, adjust the preload, modify the shoulder position of the housing.
4 reasons: poor installation, countermeasures: improve the shaft and shell processing accuracy, installation accuracy, installation methods.
5 reasons: the surface creep, sealing device friction is too large, countermeasures: replacement of bearings, research coordination, modify the shaft and shell, change the form of sealing.
Phenomenon three, large vibration (axis of the beating)
Cause 1: (after carburizing) surface deformation, countermeasure: pay attention to bearing replacement operation.
2 reasons: stripping, countermeasures: replacement of bearings.
Reason 3: bad installation, countermeasures: modify the shaft, shell, shoulder angle, and the side of the gasket side of the right angle.
Reason 4: foreign body invasion, countermeasures: replacement of bearings, cleaning parts, improve the sealing device, etc..
Lubricant leakage is excessive, discoloration reasons: excessive lubricant, wear powder, foreign body foreign body, proper use of lubricant, countermeasures: to change choice research on replacement of lubricants, bearings, cleaning shell. |
