Bearing Brinelling: The Silent Destroyer of Bearings

Bearing brinelling is a common and costly problem that can occur when bearings are subjected to excessive static loads. This can happen during storage, transportation, or even during operation. Brinelling occurs when the load on a bearing exceeds the material's yield strength, causing permanent deformation of the bearing raceways. This deformation can lead to premature bearing failure, noise, and vibration.

The effects of bearing brinelling can be significant. According to the American Bearing Manufacturers Association (ABMA), brinelling can reduce bearing life by up to 50%. In addition, brinelling can increase noise and vibration levels, which can lead to equipment damage and downtime.

Causes of Bearing Brinelling

Bearing brinelling is caused by excessive static loads. This can happen during storage, transportation, or even during operation. The following are some of the most common causes of bearing brinelling:

Improper storage: Bearings should be stored in a cool, dry place with minimal vibration. They should also be protected from excessive moisture and dirt.

Improper transportation: Bearings should be transported in a way that prevents them from being subjected to excessive shock or vibration.

Excessive operating loads: Bearings should not be subjected to loads that exceed the bearing's rated capacity.

Signs of Bearing Brinelling

Bearing brinelling can be difficult to detect, as it often does not cause any immediate problems. However, there are some signs that may indicate that brinelling has occurred:

Noise: Brinelling can cause bearings to produce a humming or grinding noise.

Vibration: Brinelling can also cause bearings to vibrate excessively.

Premature bearing failure: Brinelling can lead to premature bearing failure.

Prevention of Bearing Brinelling

Bearing brinelling can be prevented by taking the following steps:

Proper storage: Bearings should be stored in a cool, dry place with minimal vibration. They should also be protected from excessive moisture and dirt.

Proper transportation: Bearings should be transported in a way that prevents them from being subjected to excessive shock or vibration.

Proper installation: Bearings should be installed according to the manufacturer's instructions.

Proper lubrication: Bearings should be lubricated according to the manufacturer's instructions.

Avoiding excessive loads: Bearings should not be subjected to loads that exceed the bearing's rated capacity.

Repair of Bearing Brinelling

Bearing brinelling can be repaired by replacing the damaged bearing. However, it is important to note that brinelling can also damage the shaft or housing, so it is important to inspect these components as well.

Conclusion

Bearing brinelling is a serious problem that can lead to premature bearing failure, noise, and vibration. It is important to take steps to prevent brinelling from occurring. By following the tips outlined in this article, you can help to extend the life of your bearings and reduce the risk of costly breakdowns.

Tables

Cause of Bearing Brinelling	Prevention
Improper storage	Store bearings in a cool, dry place with minimal vibration.
Improper transportation	Transport bearings in a way that prevents them from being subjected to excessive shock or vibration.
Excessive operating loads	Do not subject bearings to loads that exceed the bearing's rated capacity.

Sign of Bearing Brinelling	Action
Noise	Inspect the bearing for brinelling.
Vibration	Inspect the bearing for brinelling.
Premature bearing failure	Replace the damaged bearing.

Success Stories

Company A: Company A was experiencing premature bearing failure in their conveyor system. After investigating the problem, they discovered that the bearings were being subjected to excessive static loads during storage. By changing the way the bearings were stored, Company A was able to eliminate the brinelling and extend the life of their bearings.

Company B: Company B was experiencing noise and vibration in their gearbox. After inspecting the gearbox, they discovered that the bearings were brinelled. By replacing the damaged bearings, Company B was able to eliminate the noise and vibration and restore the gearbox to normal operation.

Company C: Company C was experiencing premature bearing failure in their electric motors. After investigating the problem, they discovered that the bearings were being subjected to excessive operating loads. By reducing the load on the bearings, Company C was able to eliminate the brinelling and extend the life of their bearings.

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American Bearing Manufacturers Association (ABMA)

Bearing Brinelling

Bearing Brinelling: The Silent Destroyer of Bearings