Reliability Bearing Failures

Question 1

Severe Spalling on a bearing surface is caused by ?

Answer 1

Excessive Overloading.

Question 2

Bearing overheating can be determined by?

Answer 2

Discoloration of the metal

Question 3

Bearing overheating is caused by?

Answer 3

Insufficient cooling or lubrication

Question 4

False Brinelling on a bearing can be determined by?

Answer 4

Eliptical wear marks on the ball path/race

Question 5

False Brinelling is caused by?

Answer 5

Excessive external vibration whilst the machine in not rotating.

Question 6

False Brinelling can be prevented by?

Answer 6

Correctly isolating bearings from external vibration

Question 7

You can minimize the risk of Brinelling problems by?

Answer 7

Careful handling and installation practices.

Question 8

Angular contact bearings are designed to accept a load in one direction only. When loaded in the opposite direction…………….?

Answer 8

The result is excessive stress and increased temperature.

Question 9

Contamination is one of the leading causes of bearing failure. Reducing the likely hood of failure from contamination can be done by…………………….?

Answer 9

Clean work area, tools, keeping grinding operations away from bearing assembly areas.

Question 10

A symptom of lubricant failure is……………?

Answer 10

Discolored blue or brown tracks on the ball, ring and cages.