Common sunthai bearing abnormal phenomenon

Large metal noise
Reason 1: Abnormal load, countermeasure: correction with, study sunthai bearing clearance, adjustment and load, correct shell shoulder position.
Reason 2: poor installation, countermeasures: shaft, shell processing accuracy, improve the installation accuracy, installation method.
Cause 3: Lubricant is insufficient or unsuitable. Countermeasure: Add lubricant and select appropriate lubricant.
Reason 4: Rotating parts have contact, countermeasures: modify the contact part of the song seal.
Rule noise
Cause 1: As a result of foreign matter caused by rolling surface indentation, corrosion or scars, countermeasures: replacement sunthai bearings, cleaning the parts, improve the sealing device, the use of clean lubricants.
Reason 2: (steel carburizing) surface deformation, countermeasures: replacement sunthai bearings, pay attention to its use.
Reason 3: Raceway surface peeling, countermeasure: Replace sunthai bearing.
Irregular noise
Reason 1: clearance is too large, countermeasures: research and sunthai bearing clearance, modify the preload.
Reason 2: foreign body invasion, countermeasures: study the replacement sunthai bearings, cleaning the parts, improve the sealing device, the use of clean lubricants.
Reason 3: Spherical wound, peeling, countermeasure: Replace sunthai bearing.
Exceptional temperature rise
Reason 1: excessive lubricant, countermeasures: reduce the lubricant, the amount of use, choose a hard grease.
Reason 2: Lubricant is insufficient or unsuitable. Countermeasure: Add lubricant, select the appropriate lubricant.
Reason 3: abnormal load, countermeasures: modify with, study sunthai bearing clearance, adjust the preload, modify the shell of the shoulder position.
Reason 4: poor installation, countermeasures: to improve the shaft and shell machining accuracy, installation accuracy, installation methods.
Reason 5: Mating the creep of the surface, the friction of the sealing device is too large. Countermeasure: Replace the sunthai bearing, research with the modified shaft and shell, change the seal form.
Vibration large (beating of the shaft)
Reason 1: (steel carburizing) surface deformation, countermeasures: pay attention to sunthai bearing replacement operation.
Reason 2: peeling, countermeasure: Replace sunthai bearing.
Reason 3: poor installation, countermeasures: modify the shaft, the shell at right angle, the side of the liner angle.
Reason 4: foreign body invasion, countermeasures: replacement sunthai bearings, cleaning the parts, improve the sealing device.
Lubricant leaks too much, discoloration
Cause: Lubricant is too much, foreign body intrusion, wear powder to produce foreign body, etc. Countermeasures: Appropriate use of lubricant, study change the choice of lubricant, study sunthai bearing replacement, cleaning the shell.