Strong metal sound

1. Abnormal load: select appropriate assembly clearance and preload

2, poor assembly: improve the machining accuracy of the shaft, improve the installation method

3. Insufficient lubricant: supplement or use proper lubricant

Rules of the sound

1. Channel corrosion, indentation and scars caused by foreign bodies: clean related parts and use clean grease

2, channel peeling: fatigue wear, replace the bearing

Irregular heterophony

1. Foreign body invasion: clean related parts and use clean grease

2. Excessive clearance: pay attention to coordination and select appropriate clearance

3, steel ball scar: steel ball fatigue peeling or foreign body stuck, replace the bearing

Abnormal temperature rise of

1, too much lubricant: reduce the lubricant

2, insufficient lubricant, or not suitable: add lubricant or choose the right lubricant

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

The rotary vibration of the shaft is large

1, peeling: fatigue peeling, replace the bearing

2, poor assembly: improve the machining accuracy of the shaft, improve the installation method

3. Foreign body invasion: clean related parts and use clean grease

Lubricant leakage large discoloration

1, too much lubricant: reduce the lubricant

2. Foreign body invasion: cleaning related parts