The failure modes and causes of bearing failure include the following:

The failure modes and causes of bearing failure include the following:

1. Fatigue failure: Prolonged cyclic loading and rotation can lead to metal fatigue, ultimately causing bearing failure. Common causes include overloading, vibration, unbalanced loads, and abnormal working conditions.

2. Wear failure: Surface wear of the bearing is a common failure mode and can be caused by factors such as particle contamination, poor lubrication, corrosion, or abnormal wear.

3. Lubrication failure: Incorrect lubrication or lubricant failure can result in bearing failure. Insufficient lubrication, excessive lubrication, the use of incorrect lubricants, or contaminated lubricants can all have adverse effects on bearing performance.

4. Contamination failure: External contaminants such as dust, moisture, chemicals, etc., entering the bearing can interfere with its normal operation. This can lead to wear, corrosion, and other damage.

5. Installation errors: Incorrect installation procedures, improper assembly forces, or the use of inappropriate tools can cause bearing damage. This includes issues such as excessive press-fit, over-tightening, or improper alignment.

6. Temperature failure: Operating bearings under excessively high or low temperature conditions can cause bearing failure. High temperatures can lead to lubricant failure and metal thermal expansion, while low temperatures can cause lubricants to become viscous or freeze.

7. Corrosion failure: Corrosive substances in the environment, such as chemicals, moisture, and gases, can cause bearing corrosion and damage.

These are just some common bearing failure modes and causes. The actual situation may vary depending on different applications and working environments. Proper bearing selection, installation, and maintenance are crucial for extending bearing life and reducing the risk of failure.