Common problems and countermeasures when using bearings

Question 1, strong metallic sound

1. Abnormal load: select appropriate assembly clearance and preload;

2. Poor assembly: improve the accuracy of shaft processing and improve the installation method;

3. Insufficient lubricant: supplement or use suitable lubricant.

Question 2. Regular tone

1. Corrosion, indentation, and scars caused by foreign objects: clean related parts and use clean grease;

2. Channel peeling: fatigue and wear, replace the bearing.

Question 3, irregular sound

1. Foreign body intrusion: clean related parts and use clean grease;

2. The clearance is too large: pay attention to cooperate and select the appropriate clearance;

3. Steel ball scars: steel ball fatigue peeling or foreign body stuck, replace the bearing.

Question 4. Abnormal temperature rise

1. Too much lubricant: reduce lubricant;

2. Insufficient or unsuitable lubricant: increase lubricant or select suitable lubricant;

3. The creep of the mating surface or the sealing device is too large: the outer or inner diameter of the bearing is corrected, and the sealing form is changed.

Question 5, the rotation vibration of the shaft is large

1. Peeling: Fatigue peeling, replace the bearing;

2. Poor assembly: improve the machining accuracy of the shaft and improve the installation method;

3. Foreign body intrusion: clean the relevant parts and use clean grease.

Question 6: Lubricant leakage discoloration

1. Too much lubricant: reduce lubricant;

2. Foreign body invasion: cleaning related parts.