1、Foreign objects caused by channel corrosion, indentation, scars: cleaning of related parts, the use of clean grease

2、Groove spalling: fatigue wear, replace the bearing

Irregular noise

1、Foreign body invasion: clean related parts, use clean grease.

2、Excessive clearance: pay attention to the fit and choose the right clearance.

3、Steel ball scars: steel ball fatigue spalling or foreign objects, replacement of bearings

Strong metal sound

1、Abnormal load: choose the appropriate assembly clearance and preload

2, poor assembly: improve shaft machining accuracy, improve installation methods

3、Insufficient lubricant: supplement or use the appropriate lubricant

Lubricant leakage discolouration

1, too much lubricant: reduce the lubricant

2、Foreign body invasion: cleaning related parts

Abnormal temperature rise

1, too much lubricant: reduce the lubricant

2、Insufficient lubricant, or unsuitable: increase the lubricant or choose the right lubricant

3、Compatible surface creep or sealing device is too large: bearing outer diameter or inner diameter with surface correction, sealing form for change

Shaft rotary vibration

1、Spalling: fatigue spalling, replacement of bearings

2, poor assembly: improve shaft machining accuracy, improve installation methods

3、Foreign body invasion: Clean the relevant parts, use clean grease.