Common problems and countermeasures when using bearings

Question 1, strong metal tone
1. Abnormal load: select the appropriate assembly clearance and preload;
2, poor assembly: improve the accuracy of shaft machining and improve the installation method;
3. Insufficient lubricant: supplement or use a suitable lubricant.
Question 2, regular tone
1. Foreign matter causes channel corrosion, indentation, and scars: cleaning related parts and using clean grease;
2, channel spalling: fatigue wear, replace the bearing.
Question 3, irregular sound
1. Intrusion of foreign matter: clean the relevant parts and use clean grease;
2, the clearance is too large: pay attention to match and choose the appropriate clearance;
3, steel ball scars: steel ball fatigue peeling or foreign body jam, replace the bearing.
Question 4, abnormal temperature rise
1. Too much lubricant: reduce lubricant;
2. Insufficient lubricant, or unsuitable: increase lubricant or choose suitable lubricant;
3. The mating surface creep or the sealing device is too large: the outer diameter or inner diameter of the bearing is corrected, and the sealing form is changed.
Question 5, The rotary vibration of the shaft is large
1. Peeling: Fatigue peeling off and replacing bearings;
2, poor assembly: improve the machining accuracy of the shaft, improve the installation method;
3. Intrusion of foreign matter: Clean the relevant parts and use clean grease.
Question6, lubricant leakage large discoloration
1. Too much lubricant: reduce lubricant;
2, foreign body invasion: cleaning related parts.