Since the advent of variable frequency drive motors, standard rolling element bearings have been failing from electrical arcing because of stray electrical currents in the motors. This article will explore… Click to show full abstract
Since the advent of variable frequency drive motors, standard rolling element bearings have been failing from electrical arcing because of stray electrical currents in the motors. This article will explore the damage mechanism in the bearings and introduce the use of ceramic rolling element bearings to eliminate this issue. Case histories will be provided.
               
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