In the age of energy efficiency, engineers are often excited about the potential cost savings associated with variable-frequency drives (VFDs) and their ability to operate motors to match demand loads ...

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 a machine is subjected to a noise-reduction program, bearings are normally involved. Even when bearings are not generating noise, they may be concerned with noise transfer. Generally, ...