Electric motors fail more often than they should. Sometimes, it is not the motor’s fault. The real issue lies deep within—where current leaks through the bearings. That is where insulated bearings ...

All major manufacturers of three-phase ac induction motors offer “inverter-duty” or “inverter-ready” models, but while these motors have inverter-rated insulation to protect the windings, the bearings ...

When it comes to assuring that a motor provides consistent service for the longest time possible, it’s important to pay attention to the bearing system. Bearing system failures are one of the most ...

The new SP4 motor variant, designed for use with variable speed drives, features integrated shaft grounding technology and ...

Inverters used to control a motor’s speed or torque — also known as variable frequency drives (VFDs) or adjustable speed drives — can induce unwanted motor shaft voltages that cause premature motor ...

Where there are spinning automotive parts, there are almost always lubricated bearings involved. At least we hope they stay lubricated and spinning. Front wheel bearing failures are something we have ...

I had my nose in a book about motors (again), and came across something I don’t remember seeing before. I had my nose in a book about motors (again), and came across something I don’t remember seeing ...

The following five factors can produce its own particular type of damage and leave its own special imprint on the bearing. Consequently, by examining a damaged bearing it is possible to determine the ...

The experts at eMotors Direct outline how VFD’s can damage bearings and discuss preventative measures to prevent VFD induced bearing damage Electric motors fitted with VFDs (Variable Frequency Drives) ...

[RimstarOrg] has brought us an oldie but goodie this week. He’s built a ball bearing motor, a design which has been causing engineers and scientists to squabble for decades. [RimstarOrg] used a ...

I have a 1975 Ford F-150 4x4 that I am working on restoring and modifying. I am currently going through the Dana 44 front axle, and I was curious how you can tell if a wheel bearing is spinning on the ...