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AC Motors & Gearmotors

Constant Speed AC Motors

AC motors operate by simply connecting a capacitor and supplying AC power from a commercial power supply. Oriental Motor offers a wide range of AC motor types to meet specific application requirements.

AC Motor Types

 

AC Motor Speed Control

Features
  • Easily control the speed of an AC speed control motor
Speed Controller
$74.80 + Motor
Available to Ship:
Same Day*

NEW! Three-Phase AC Motors for
use with Third-Party Inverters

AC Motor Torque Control

Features
  • Easily control the torque of an AC torque motor
Torque Controller
$104.55 + Motor
Available to Ship:
Same Day*

Positioning with an AC Motor

Features
  • Use brake options to provide positioning when used with an AC motor
Brake Pack
$102.85 + Motor
Available to Ship:
Same Day*

Linear Motion with an AC Motor

Features
  • Linear heads available to provide linear motion for AC motors
Linear Head
$27300 + Motor
Available to Ship:
Same Day*

*Some models ship within 5 Business Days. Check with your local sales office or call 1-800-418-7903 for specific lead times.

Easy Operation

AC motors include single-phase motors used with a single-phase AC power supply and three-phase motors used with a three-phase AC power supply. A single-phase motor can be operated by simply connecting it to a single-phase power supply via the supplied capacitor. A three-phase motor does not require a capacitor. All you need is to connect the motor directly to a three-phase AC power supply.

The Power Supply Frequency Determines the Speed

The basic speed (synchronous speed) of a standard AC motor is determined by the power supply frequency and the number of poles. Many of our standard AC motors have four poles, so their synchronous speed is as follows:

  • 50 Hz: 1500 r/min
  • 60 Hz: 1800 r/min

The actual speed varies according to the load torque.

With our motors, the speed roughly falls within the following ranges at a load torque equivalent to the rated torque:

  • 50 Hz: 1200 to 1300 r/min
  • 60 Hz: 1450 to 1600 r/min

The rated speed of our standard AC motors are set within the above ranges and shown in each motor's specifications. To calculate a more accurate machine speed, use the rated speed as a reference.

The power supply frequency varies from region to region. In the case of automated equipment used in different regions, change the gear ratio of the gearhead or take the appropriate measure to obtain the desired speed.

 

AC Induction Motors

These motors can be easily operated from an AC power supply. Single-phase and three-phase motors are available.

AC Induction Motors

 

AC Reversible Motors

Generating a greater starting torque and having a built-in friction brake, these single-phase AC motors allow for instantaneous switching of rotation direction.

AC Reversible Motors

Electromagnetic Brake AC Motors

These AC motors adopt a power off activated type electromagnetic brake to hold the load in position when the power is cut off.

Electromagnetic Brake AC Motors

Watertight, Dust-Resistant AC Induction Motors

Geared AC motors of excellent watertight, dust-resistant structure. These AC motors conform to the IEC standard IP67.

Watertight AC Induction Motors

Synchronous AC Motors

A special rotor is used to provide rotation at a fixed speed in synchronization with the power supply frequency.

Synchronous Motors

Low-Speed Synchronous AC Motors

Uses the same stator and rotor as stepping motors. The motor offers superb starting, stopping and reversing characteristics as well as synchronous operation.

Low-Speed Synchronous Motors

Clutch & Brake AC Motors

Equipped with an electromagnetic clutch and brake at the motor output shaft. High frequency starting and stopping is possible while the motor is operating.

Clutch & Brake AC Motors

AC Torque Motors

A special rotor is used to provide large starting torque and sloping characteristics (torque is highest at zero speed and decreases steadily with increasing speed). The torque can be changed by changing the applied voltage.

AC Torque Motors

AC Speed Control Motors

AC speed control motors employ a closed-loop control system by utilizing feedback from the built-in tachogenerator.

Speed Control AC Motors



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