[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 ...

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 ...

A variable frequency drive (VFD) motor is an advanced electric motor controlled by a VFD that adjusts frequency and voltage ...

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 ...

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 ...

There's more to selecting a motor than meets the eye. Motors typically are grouped into three categories. General-purpose motors are designed around industry standards and feature standard operating ...

HYPROSTATIK SCHÖNFELD spindle bearings help grinding machine operators achieve ultra-precise finishes: When grinding, the best surface finishes are achieved if the tips of the abrasive particles ...

Maintenance is key to the survival of your four-wheel-drive vehicle, and that's true whether it spends most of its time on the highway or on the trail. Most of us take care of the big-ticket items ...

Engine bearings do many things. They support moving parts like crankshafts and connecting rods, but they also play a role in determining an engine's oil pressure and protect the crankshaft from being ...

This schematic shows a 12-MW, 9,500-rpm induction motor with oil-film bearings that drives an oil-pipeline pump. Like other high-speed machines, it has a specialty rotor, reinforced bearing housing, ...