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Gearmotors

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About Gearmotors

Gearmotors of all types and sizes including single / multiphase, universal, servo, induction and synchronous types. An AC gearmotor consists of a series of three windings in the stator section with a simple rotating section and an integral gearbox or gearhead. The changing field caused by 50 or 60 Hertz AC line voltage causes the rotor to rotate about the axis of the motor. AC motors are the most common and simple type of motor manufactured.  DC gearmotors are configured in many types and sizes, including brushless and servo. A DC gearmotor consists of a rotor and a permanent magnetic field stator and an integral gearbox or gearhead. The magnetic field is maintained using either permanent magnets or electromagnetic windings. DC motors are most commonly used in variable speed and torque applications.  A DC servomotor has an output shaft that can be positioned by sending a coded signal to the motor.  As the input to the motor changes, the angular position of the output shaft changes as well.  Servomotors are generally small and powerful for their size, and easy to control.  Common types of DC servomotors include brushless or gearmotor types.  Stepper motors are a class of motors that provide incremental motion, or steps, in response to pulses of current that alternately change the polarity of the stator poles; step motors do not require feedback and are sometimes used in "Open Loop," or no-feedback applications.


Products & Services Related to Gearmotors

AC Motors
AC motors include single, multiphase, universal, induction, synchronous, and gear motors. They also include servomotors.  
AC Servomotors
AC servomotors are responsive, high-acceleration motors typically constructed as permanent magnet synchronous motors.
DC Motors
DC motors are most commonly used in variable speed and torque applications. They include brushless and gear motors, as well as servomotors.
DC Servomotors
DC servomotors are generally small and powerful for their size, and easy to control. Common types of DC servomotors include brushless or gear motors.
Stepper Motors
Stepper motors use a magnetic field to move a rotor in small angular steps or fractions of steps. They provide precise positioning and ease of use, especially in low acceleration or static load applications.

Engineering Web: Gearmotors - Machine Design

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Gearmotors give users choices | Machine Design
Gearmotors give users choices February 19, 2004 the gearmotor they need from the 750 Series of ac and dc right-angle gearmotors from Bison Gear.
Parallel-shaft gearmotors | Machine Design
Parallel-shaft gearmotors September 2, 2004 PS1900 parallel-shaft gearmotors are available in 14 gear ratios from 5:1 to 320:1.
Hollow-Bore Gearmotors | Machine Design
Hollow-Bore Gearmotors October 7, 2004
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