Tekniker

An electric motor bearing for railway

Objective

To determine causes of bearing failure.

Results

Failure due to passage of electrical current.

An electric motor bearing for railway

Bearing belonging to an electric railway engine. The bearing showed points with melted material in runs and balls.

It was diagnosed that the deterioration of the material was due to the passage of electric current. The possible solutions proposed were to improve the electrical insulation and to create alternative routes for the current.

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