AC Motors & Gearmotors

AC motors are used generally as a power source for automated equipment, because these motors can be operated easily by connecting the motors directly to an AC power supply. Oriental Motor offers standard AC motors incorporating various operating functions. A standard AC motor supports various applications by using with a brake pack or speed control circuit product, and combining with other mechanical components such as a gearhead or linear head.

Oriental Motor offers a wide variety of standard AC motors in frame sizes ranging from 1.65 inch (42 mm) to 4.09 inch (104 mm) square with output power of 1 W (1/750 HP) to 200 W (1/4 HP). There are two basic types of AC motors: standard induction motors that run continuously and reversible motors that allow for bi-directional operation. AC motors with additional functionality are also available. These types of motors include: electromagnetic brake motors to hold loads in a power-off situation; clutch & brake motors for quick starts and stops; synchronous motors and low-speed synchronous motors for a fixed speed in synchronization with the power frequency; watertight motors for applications were the motor is splashed or washed with water and torque motors for tension control and winding applications.

Many of Oriental Motor's AC motors conform to UL/CSA/EN standards and apply the CE Marking in accordance with the low voltage directives. AC motors are available in power supply voltages that meet the requirements of North America, Asia and Europe.

Easy Operation

AC motors include single-Phase motors used with a single-phase power supply and three-phase motors used with a three-phase 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 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.

Various Operating Functions

Oriental Motor has induction motors and other motor types offering various operating functions to meet the diverse needs of customers.

Type	Features
Parallel Shaft Gearheads	Long Rated Life of 10,000 Hours The GN-S/GE-S gearhead achieves a long rated life of 10,000 hours, twice the level of a conventional gearhead. By adopting a large, specifically designed bearing and reinforced gears. Low Noise Design The GN-S gearhead generates less noise thanks to gears with a special shape and surface machining assembled with the use of advanced technology
Right-Angle Gearheads	Ideal Space-Saving Solution The gear is postiioned at right angles with the motor shaft, enabling space saving. Hollow Shaft and Solid Shaft Types Available Select an appropriate type that suits your specific application.
Rack-and-Pinion Mechanisms	Easy to Acheive Linear Motion A rack-and-pinion mechanism is combined with a reduction mechanism, which allows the motor to convert rotation to linear motion with great ease.