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The purpose of DC motor protection is
to extend a motor's lifespan by protecting
it from conditions that can damage the motor's windings--both electrically
and mechanically.
The development of a new, gas-carburized gear steel, necessitated by a customer-driven specification, has not only increased the power density in an existing gearbox design, but has done so without requiring any significant change to production processes or heat treatment equipment.
This paper is intended to enlarge the application range of radial cylindrical roller bearings by means of a more precise determination of thrust load capacity and more cost-effective design.
We have just returned from the Electrical Products Group Conference in
Sarasota, Florida. This is our favorite
venue because it allows us to speak
with the CEOs of nearly 25 global industrial companies that include General Electric, United Technologies,
Honeywell, ABB and Emerson, with
combined revenue of perhaps $500 billion.
Over the past several weeks, I've had quite an interesting back-and-forth e-mail conversation with John Pellegrino, an engineer, inventor and dreamer whose letter appears on page 8.
Novatorque energy efficient motors, Portescap smaller-size brushless DC motors, Pittman customized motors, Kollmorgen stainless steel motors, Crouzet expanded motor series, and a report from IHS on rare earth mineral supply.