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Different motor types favor different application areas. No single style has advantages in all application spaces. Direct drive applications favor hybrid servos while high-speed, geared down applications tend to favor the conventional servo motors.
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.
KEB America announces the release of the new STEEL IT epoxy coating for servomotors. When motors are used in applications that are exposed to moisture and chemicals - such as food and beverage processing - they require special design considerations to ensure they will withstand the environment. The new STEEL IT epoxy coating option from KEB America provides a washdown servomotor with many of the benefits of a stainless-steel motor, but at a fraction of the cost.