Nine star insulated bearing information
2015-07-15The most common causes of stray electric currents are:
1) Asymmetry in the motor’s magnetic circuit
2) Unshielded power cables
3) Fast switching pulse width modulated frequency converters used in modern VFD’s
Features & Benefits of Electrically Insulated Bearings:
a) Virtually eliminates premature bearing failures caused by stray electric currents
b) Increases machine uptime
c) Reduces maintenance costs
d) Provides an economical solution when compared with other insulation solutions