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The Electric Motors Reference Center, from Machine Design, is designed to
provide design engineers with the information they need to specify or purchase electric motors
including: AC motors, DC motors, stepper motors and servo motors. The Electric Motors 101 section
includes reference information about the various types of electric motors and the selection criteria and
requirements used for typical mechanical engineering applications. This section is split into
the electric motor type: AC motors, DC motors, stepper motors and electrical drives. Electric Motors
Articles will point you to recent application and product articles that have appeared recently in
the pages of Machine Design magazine. Electric motors, both ac motors and dc motors, come in many shapes
and sizes. Some electric motors are standardized versions for general-purpose applications. Other electric motors are intended
for specific tasks. In any case, electric motors should be selected to satisfy the dynamic requirements of
the machines on which they are applied without exceeding rated electric motor temperature. Thus, the first
and most important step in electric motor selection is determining load characteristics -- torque and
speed versus time. Electric Motor selection is also based on mission goals, power available, and
cost.
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