Over the many years, there have been many technical papers and articles about which motor is the best. The short and sweet answer is - let's talk about the application. More recently a number of papers and articles have appeared that compared each motor's advantages and disadvantages in generic or specific terms. Many times, the methods used to drive and control these motors are not completely described due to the many control schemes available for use. A few articles focus on just the open loop step motor and the closed loop servo motor advantages and disadvantages in a laundry list format. This article is attempting to "drill down" into the reasons why and to describe how it is done.

Industrial mainstay adapts to remain relevant in a 4.0 world

A Look at Gear & Gear Drive Lubrication Performance Improvements

The complete Product News section from the October 2018 issue of Power Transmission Engineering.

Schaeffler Touts System Solutions and Electrification at Detroit Symposium

[caption id="attachment_852" align="alignnone" width="300"]

The East Hall—home to Hannover Messe USA— took a systematic approach to manufacturing, highlighting the smart components and techniques that will b...

The skies are full of them in 2018 - drones flying around amusement parks, job sites and even your own backyard. There are drone racing leagues on ESPN, drones capturing wide angle shots over film locations and government drones keeping a bird's eye view on the Mexican/America border.

The complete Industry News section from the September 2018 issue of Power Transmission Engineering.

Heat generation in bearings is manifested by the power losses of the transmission. Because of the rise in temperature due to heat generation, the appearance of dilatation adversely affects the bearings' geometrical characteristics.

In the design of an automatic transmission gearbox, the variation of one parameter can result in different system performances due to the strong interdependencies among all components. For given transmission ratios, component lifetimes and safeties, or space restrictions, improvements in efficiency, noise, and weight can be achieved.