AC Gearmotors
AC Gearmotors

Anaheim Automation offers a large selection of AC Gearmotors which are priced with OEM applications in mind. Choose from an AC Induction Gearmotor, AC Synchronous Gearmotor, or AC Industrial Gearmotor. These AC Gearmotors come in a variety of power ranges from 5 watts to 750 watts.

AC Induction Gearmotors - Anaheim Automation's AC Induction Gearmotors are available in 16 different series ranging from motor body sizes of 60 mm to 104 mm and power outputs up to 150 watts. The AC Induction Gearmotor uses an external capacitor to startup the motor, and runs at a speed determined by the load.

AC Synchronous Gearmotors - Anaheim Automation's AC Synchronous Gearmotors run at fixed speeds with a fixed input frequency. The motor will run at this speed regardless of the load applied up to its maximum torque rating. AC Synchronous Motors are available in 2 different frame sizes of 42mm and 50mm with power outputs up to 7 watts. The AC Synchronous Gearmotor uses an external resistor and capacitor to startup the motor.

AC Industrial Gearmotors - Anaheim Automation's AC Industrial Gearmotors range from 200 to 750Watts in power, available in gear ratios between 5:1 and 200:1. These AC Industrial Gearmotors run off of a three-phase power supply, and depending on the wiring configuration can operate at 220VAC or 380VAC.


  • Torque: 16 to 5,664 Ounce-Inches
  • Sizes: 60mm to 100mm
  • Low-Cost AC Motors with Spur Gearboxes
  • Round-Bodied with Square Mounting Flange
  • Customization for Specific Requirements Available
  • Shaft Modifications and Motor Adders Available
  • Reversible
  • Torque: Up to 56 Ounce-Inches at 30rpm
  • Sizes: 44mm and 50mm
  • Low-Cost AC Synchronous Gearmotors
  • Round-bodied with Square Mounting Flange
  • Frequently Used in Appliances, Displays, Printers, Timers, Pumps, etc.
  • Customization for Optimizing Current, Voltage, Torque and Max Speed
  • Shaft Modifications and Motor Adders Available
  • Torque: 708 oz-in to 27,614 oz-in
  • Power: 200Watts to 750Watts
  • Gear Ratios from 5:1 to 200:1
  • Shaft Diameters from 18mm to 40mm
  • Foot and Flange-Mount Options Available
  • Low-Cost AC Industrial Gearmotors
  • Compact Size, High Efficiency
  • IP55 Protection
  • Class F Insulation
Fundamentals of AC Gearmotors

Helpful Information
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Engineers appreciate that Anaheim Automation’s AC Gearmotors product line can answer their desire for creativity, flexibility and system efficiency. Buyers appreciate the simplicity of the one-stop shop, and the cost savings of a custom AC Gearmotors design, while engineers are pleased with Anaheim Automations dedicated involvement in their specific system requirements. Anaheim Automation’s standard AC Gearmotors product line is a cost-effective solution, in that they are known for their rugged construction and excellent performance. A considerable size of its sales growth has resulted from dedicated engineering, friendly customer service and professional application assistance, often surpassing the customers expectations for fulfilling their custom requirements. While a good portion of Anaheim Automations AC Gearmotors sales involves special, custom, or private-labeling requirements, the company takes pride in its standard stock base located in Anaheim, California, USA. To make customization of a AC Gearmotors affordable, a minimum quantity and/or a Non-Recurring Engineering (NRE) fee is required. Contact the factory for details, should you require custom AC Gearmotors in your motion control system design. All Sales for a customized or modified AC Gearmotors are Non-Cancelable-Non-Returnable, and a NCNR Agreement must be signed by the customer, per each request. All Sales, including a customized AC Motor, are made pursuant to Anaheim Automation’s standard Terms and Conditions, and are in lieu of any other expressed or implied terms, including but not limited to any implied warranties. Anaheim Automations customers for the AC Gearmotors product line are diverse: companies operating or designing automated machinery or processes that involve food, cosmetics or medical packaging, labeling or tamper-evident requirements, assembly, conveyor, material handling, robotics, special filming and projection effects, medical diagnostics, inspection and security devices, pump flow control, metal fabrication (CNC machinery), and equipment upgrades. Many OEM customers request that we “private-label” the AC Motor, so that their customers stay loyal to them for servicing, replacements and repairs. PLEASE NOTE: Technical assistance regarding its AC Gearmotors product line, as well as all the products manufactured or distributed by Anaheim Automation, is available at no charge. This assistance is offered to help the customer in choosing Anaheim Automation products for a specific application. However, any selection, quotation, or application suggestion for a AC Motor, or any other product, offered from Anaheim Automation’s staff, its representatives or distributors, are only to assist the customer. In all cases, determination of fitness of the custom AC Gearmotors in a specific system design is solely the customers responsibility. While every effort is made to offer solid advice regarding the AC Gearmotors product line, as well as other motion control products, and to produce technical data and illustrations accurately, such advice and documents are for reference only, and subject to change without notice.

Accessories
There is a vast selection of accessories for the AC Gearmotors. The accessories available include a brake, clutch, fan, connector, and cables. The AC Gearmotors brakes are a 24vdc system. These brakes are ideal for any holding applications you may use with an AC Motor. The AC Gearmotors brakes have a low voltage design for applications that are susceptible to weak battery, brown out, or long wiring. The AC Gearmotors Clutch is used to control the torque that is applied to the load. The AC Gearmotors clutch can also be used to ramp up the speed of a high inertia load. Clutches are ideal to use with an AC gearmotors when you want precise control over torque or to slowly apply the power. AC Gearmotors clutches also help prevent large current spikes. AC Gearmotors Fans are used to cool down the motors. They are not really seen in small motors because they are not needed but more common with larger AC induction motors due to heat generation. There are two types of fans that are used for AC Gearmotors. The types are internal and external fans. AC Gearmotors fans are ideal to use when overheating is a concern. AC Gearmotors cables can be custom made with the supplied AC gearmotors connector to fit your specifications. The cables may also be purchased from Anaheim Automation.

Basics
The standard definition for AC Gearmotors is electric gearmotors that use and are driven by alternating current. AC Gearmotors are used in the conversion of electrical energy into mechanical energy. This mechanical energy is made from utilizing the force that is exerted by the rotating magnetic fields produced by the alternating current that flows through coils. The AC Gearmotors is made up of two components. AC Gearmotors components are the stationary stator that is on the outside and has coils supplied with AC current, and the inside rotor that is attached to the output shaft.

Cost
The AC Gearmotors are a reasonable cost effective solution to your application needs. The construction materials along with how the gearmotors is designed make AC Gearmotors affordable solutions. AC Gearmotors operate with a rotating magnetic field and does not use brushes. This enables the cost of the gearmotors to be lower and eliminates a piece of your gearmotors that wears over time. AC Gearmotors do not require a driver to operate. This saves initial setup costs. Today’s manufacturing processes makes producing AC Gearmotors easier and quicker than ever. The stator is made out of thin laminations that can be pressed or punched out of a machine. Many other parts can be quickly made and perfected saving both time and money.

Customizing AC Gearmotors
Anaheim Automation was established in 1966 as a manufacturer of turnkey motion control systems. Its emphasis on R&D has insured the continued introduction of advanced motion control products, such as the AC Gearmotors product line. Today, Anaheim Automation ranks high among the leading manufacturers and distributors of motion control products, a position enhanced by its excellent reputation for quality products at competitive prices. The AC Gearmotors product line is no exception to the Company’s goal. Anaheim Automation offers a variety of standard AC Gearmotors. Occasionally, OEM customers with mid to large quantity requirements prefer to have AC Gearmotors that are custom or modified to meet their exact design requirements. Sometimes the customization is as simple as shaft modification, brake, oil seal for an IP65 rating, mounting dimensions, wire colors, or label. Other times, a customer might require that AC Gearmotors meet an ideal specification such as, speed, torque, and/or voltage.

Environmental Considerations
The following environmental and safety considerations must be observed during all phases of operation, service and repair of AC Gearmotors system. Failure to comply with these precautions violates safety standards of design, manufacture and intended use of the AC Motor. Please note that even well-built AC Gearmotors operated and installed improperly, can be hazardous. Precaution must be observed by the user with respect to the load and operating environment. The customer is ultimately responsible for the proper selection, installation, and operation of an AC Motor. The atmosphere in which AC Gearmotors are used must be conducive to good general practices of electrical/electronic equipment. Do not operate the AC Gearmotors system in the presence of flammable gases, dust, oil, vapor or moisture. For outdoor use, AC Gearmotors must be protected from the elements by an adequate cover, while still providing adequate air flow and cooling. Moisture may cause an electrical shock hazard and/or induce system breakdown. Due consideration should be given to the avoidance of liquids and vapors of any kind. Contact the factory should your application require specific IP ratings. It is wise to install the AC Gearmotors in an environment which is free from condensation, electrical noise, vibration and shock. Additionally, it is preferable to work with the AC Gearmotors system in a non-static protective environment. Exposed circuitry should always be properly guarded and/or enclosed to prevent unauthorized human contact with live circuitry. No work should be performed while power is applied. Do NOT plug in or unplug when power is ON. Wait for at least 5 minutes before doing inspection work on the AC Gearmotors system after turning power OFF, because even after the power is turned off, there will still be some electrical energy remaining in the capacitors of the internal circuit of the AC Gearmotors system. Plan the installation of the AC Gearmotors in a system design that is free from debris, such as metal debris from cutting, drilling, tapping, and welding, or any other foreign material that could come in contact with system’s circuitry. Failure to prevent debris from entering the AC Gearmotors system can result in damage and/or shock.

Feedback
AC Gearmotors have two options for feedback controls. These options are either AC Gearmotors resolvers or AC Gearmotors encoders. Both the AC Gearmotors resolver and the AC Gearmotors encoder can sense direction, speed, and the position of the output shaft. While both the AC Gearmotors resolver and AC Gearmotors encoder offer the same solution in multiple applications, they are greatly different. AC Gearmotors resolvers use a second set of stator coils called the transformer to provoke rotor voltages across an air gap. Since the resolver lacks electronic components, it is very tough with a large temperature range. The AC Gearmotors resolver is also naturally shock resistant due to how it is designed which makes it most likely used in harsh environments. The AC Gearmotors optical encoder uses a shutter that rotates to disrupt a beam of light that crosses the air gap between a light source and the photo detector. The rotating of the shutter over time causes wear on the encoder. This wear reduces the durability and dependably of the optical encoder. The type of application being run will establish whether a resolver or an encoder is needed. AC Gearmotors encoders are easier to implement and are more exact so they should be the primary preference for any application. A resolver should only be chosen if the durability needs and the environment in which it will be used requires it.

History
AC Induction motors have been in the industry for over 20 years now. The idea behind the AC Gearmotors came from Nikola Telsa in the 1880’s. Nikola Telsa stated that motors do not need brushes for the rotor to commutate. He said they could be induced by a rotating magnetic field. Nikola Telsa identified the use of alternating current which induced rotating magnetic fields. Telsa filed the U.S. patent number 416,194 for his work on the AC Motor. This type of gearmotors is what we call an AC Induction gearmotors today. AC Gearmotors have made a name for themselves by having a simple design, being easy to use, having a simple rugged construction and being cost effective for many different applications. Advances in technology have allowed manufacturers to build up Telsa’s idea and have allowed a great versatility in the speed control of the AC Induction Motor. From a simple phase control to more robust closed loop systems that use vector oriented field controls; AC Gearmotors have advanced over the last one hundred and twenty years.

How Do AC Gearmotors Work
The fundamental operation of an AC Gearmotors relies on the principles of magnetism. The simple AC Gearmotors contains a coil of wire and two fixed magnets surrounding a shaft, and a Gearbox to reduce speed and increase torque. When an electric (AC) charge is applied to the coil of wire, it becomes an electromagnet, generating a magnetic field. Simply described, when the magnets interact, the shaft and the coil of wires begin to rotate, operating the AC Gearmotors.

How to Select AC Gearmotors
In order to select the appropriate AC Gearmotors for your application, first you need to determine basic specifications. Calculate the required load torque and operating speed. Remember that induction and reversible gearmotors cannot be adjusted, they require a gearhead. If this is needed, select the appropriate gear ratio. Next determine frequency, and power supply voltage for AC gearmotors.

Mounting
The following information is intended as a general guideline for the installation and mounting of AC Gearmotors system. WARNING - Dangerous voltages capable of causing injury or death may be present in the AC Gearmotors system. Use extreme caution when handling, testing, and adjusting during installation, set-up, and operation. It is very important that the wiring of AC Gearmotors be taken into consideration upon installation and mounting. Subpanels installed inside the enclosure for mounting system components, must be a flat, rigid surface that will be free from shock, vibration, moisture, oil, vapors, or dust. Remember that the AC Gearmotors will produce heat during work, therefore, heat dissipation should be considered in designing the system layout. Size the enclosure so as not to exceed the maximum ambient temperature rating. It is recommended that AC Gearmotors be mounted in position as to provide adequate airflow. AC Gearmotors should be mounted in a stable fashion, secured tightly. NOTE: There should be a minimum of 10mm between AC Gearmotors and any other devices mounted in the system/electric panel or cabinet. NOTE: In order to comply with UL and CE requirements, the AC Gearmotors system must be grounded in a grounded conducive enclosure offering protection as defined in standard EN 60529 (IEC 529) to IP55 such that they are not accessible to the operator or unskilled person. As with any moving part in a system, the AC Gearmotors should be kept out of the reach of the operator. A NEMA 4X enclosure exceeds those requirements providing protection to IP66. To improve the bond between the power rail and the subpanel, construct your subpanel out of zinc-plated (paint-free) steel. Additionally, it is strongly recommended that the AC Gearmotors system be protected against electrical noise interferences. Noise from signal wires can cause mechanical vibration and malfunctions.

Overview
Engineers appreciate that Anaheim Automation’s AC Gearmotors product line can answer their desire for creativity, flexibility and system efficiency. Buyers appreciate the simplicity of the one-stop shop, and the cost savings of a custom AC Gearmotors design, while engineers are pleased with Anaheim Automations dedicated involvement in their specific system requirements. Anaheim Automation’s standard AC Gearmotors product line is a cost-effective solution, in that they are known for their rugged construction and excellent performance. A considerable size of its sales growth has resulted from dedicated engineering, friendly customer service and professional application assistance, often surpassing the customers expectations for fulfilling their custom requirements. While a good portion of Anaheim Automations AC Gearmotors sales involves special, custom, or private-labeling requirements, the company takes pride in its standard stock base located in Anaheim, California, USA. To make customization of a AC Gearmotors affordable, a minimum quantity and/or a Non-Recurring Engineering (NRE) fee is required. Contact the factory for details, should you require custom AC Gearmotors in your motion control system design. All Sales for a customized or modified AC Gearmotors are Non-Cancelable-Non-Returnable, and a NCNR Agreement must be signed by the customer, per each request. All Sales, including a customized AC Motor, are made pursuant to Anaheim Automation’s standard Terms and Conditions, and are in lieu of any other expressed or implied terms, including but not limited to any implied warranties. Anaheim Automations customers for the AC Gearmotors product line are diverse: companies operating or designing automated machinery or processes that involve food, cosmetics or medical packaging, labeling or tamper-evident requirements, assembly, conveyor, material handling, robotics, special filming and projection effects, medical diagnostics, inspection and security devices, pump flow control, metal fabrication (CNC machinery), and equipment upgrades. Many OEM customers request that we “private-label” the AC Motor, so that their customers stay loyal to them for servicing, replacements and repairs. PLEASE NOTE: Technical assistance regarding its AC Gearmotors product line, as well as all the products manufactured or distributed by Anaheim Automation, is available at no charge. This assistance is offered to help the customer in choosing Anaheim Automation products for a specific application. However, any selection, quotation, or application suggestion for a AC Motor, or any other product, offered from Anaheim Automation’s staff, its representatives or distributors, are only to assist the customer. In all cases, determination of fitness of the custom AC Gearmotors in a specific system design is solely the customers responsibility. While every effort is made to offer solid advice regarding the AC Gearmotors product line, as well as other motion control products, and to produce technical data and illustrations accurately, such advice and documents are for reference only, and subject to change without notice.

Physical Properties
Typically, AC Gearmotors consist of three main components: the stator and the rotor. The stator is the stationary part of AC gearmotors, consisting of several thin laminations wound with an insulated wire, forming the core. The gearbox helps reduce speed, and amplify torque. The rotor is connected to the output shaft on the inside. The most common type of rotor used in AC Gearmotors is the squirrel cage rotor, named after its resemblance to rodent exercise wheels. The stator mounts inside the AC motor’s enclosure, with the rotor mounted inside, and a gap separating the two from touching each other. The enclosure is the motor’s frame, containing two bearing houses.

Required Maintenance
Preventative maintenance is the key to long-lasting AC Gearmotors. Routine inspection should be implemented. Always check AC Gearmotors for dirt and corrosion; dirt and debris can clog air passages and reduce airflow, ultimately reducing insulation life and possible motor failure. When debris is not blatantly visible, check to ensure air flow is steady and not weak. This could potentially point towards clogging as well. In wet environments, check for corroded terminals in the conduit box and repair when necessary. Listen for excessive noise or vibration, and feel for excessive heat. This could indicate lubrication of the bearings is needed. Note: Be cautious when lubricating the bearings as excessive lubrication may lead to dirt and oils clogging air flow. Be sure to locate and remove the source of heat for AC gearmotors to avoid system failure.

Advantages and Disadvantages
Tech Tip - AC Gearmotors Advantages and Disadvantages The most common and simple industrial motor is the three-phase AC induction motor, sometimes shortened to AC Motor. Pertinent information can be found about AC gearmotors by checking the nameplate. Advantages of Using AC Gearmotors • AC Gearmotors are of a simple design • The simple design AC gearmotors: Simply stated, a series of three windings in the exterior stator section with a simple rotating section (rotor). The changing field caused by the 50 or 60 Hertz AC line voltage causes the AC motor rotor to rotate around the axis of the motor. • The speed of AC gearmotors will depend upon these three variables: 1. The fixed number of winding sets (poles) built into AC gearmotors, which determines the motors base speed. 2. The frequency of the AC line voltage. Variable speed drives change this frequency to change the speed of AC gearmotors. 3. The amount of torque loading on AC gearmotors, causes slipping. • AC Gearmotors are of a low cost construction AC gearmotors have the advantage of being the lowest cost motor. AC gearmotors are perfect for applications requiring more than about 1/2 hp (325 watts) of power. This is due to the simple design of AC gearmotors. For this reason, AC gearmotors are generally preferred for fixed-speed applications, such as in industrial applications and for commercial and domestic applications where AC line power can be easily attached. Over 90% of all gearmotors are AC induction gearmotors. They are found in air conditioners, washers, dryers, industrial machinery, fans, blowers, vacuum cleaners, and many, many other applications. • AC Gearmotors operate reliably The very simple design and construction of AC gearmotors casue them to be extremely reliable and are considered to be low maintenance. Unlike DC Brush Gearmotors, there are no brushes to replace. If AC Gearmotors are used in the appropriate environment, protected by an enclosure, AC gearmotors can expect to replace the bearings after several years of continuous operation. If the application is well designed in a protective environment, AC gearmotors may not require the bearings to be replaced for more than 10 years. • Easily Found Replacements The wide use of AC gearmotors in many different industries has resulted in easily found replacements for existing equipment repairs and/or upgrades. Many manufacturers adhere to either European (metric) or American (NEMA) standards. • AC Gearmotors are made by many manufacturers , so it is relatively easy to obtain replacements (for basically the same motor) • AC Gearmotors are designed in a variety of mounting styles (dependent upon the motor manufacturer). Foot Mount, C-Face, Large Flange, Vertical and Specialty. • There are many environmental styles available for AC Gearmotors, to cover a wide range of applications and industries, called Specialty AC Gearmotors by most. Because of the wide range of environments in which people want to use AC gearmotors, manufacturers have adapted by providing a wide range of packaging/enclosure designs, such as Open Drip Proof (ODP), Totally Enclosed/Fan-Cooled (TEFC), Totally Enclosed/Air-Over (TEAO), Totally Enclosed/Blower-Cooled (TEBC), Totally Enclosed/Non-Ventilated (TENV), and Totally Enclosed/Water-Cooled (TEWC) versions. Disadvantages of Using AC Gearmotors • Expensive speed control - Speed controllers can be expensive. The electronics required to handle an AC inverter driver are considerably more expensive than those required to handle a DC motor. However, if performance requirements can be met ~meaning that the required speed range is over 1/3rd of base speed ~ AC inverters and AC gearmotors are usually more cost-effective overall, than are DC gearmotors and DC drives. This is especially true for applications larger than 10 horsepower, because of cost savings in the AC motor. • Inability to operate at low speeds - Standard AC gearmotors should not be operated at speeds less than about 1/3rd of the base speed, due to thermal considerations. A DC motor should be considered for these applications. • Poor positioning control - Positioning drivers and controllers can be expensive and crude. Even a vector drive is very crude when controlling a standard AC motor. Stepper gearmotors and Servo Gearmotors are more appropriate for applications wherein positioning and speed control is critical.

Types
The AC Gearmotors comes in two different types known as Induction and Synchronous. These AC Gearmotors types are determined by which rotor is used in the construction. Induction AC Gearmotors AC Gearmotors products can be referred to as asynchronous motors or rotating transformers. These types of AC Gearmotors use electromagnetic induction to power the rotating device which is usually the shaft. The rotor in Induction AC Gearmotors typically turns slower than the frequency that is supplied to it. Induced current is what causes the magnetic field that envelops the rotor of these motors. Induction AC Gearmotors can come in one or three phases. Synchronous AC Gearmotors The Synchronous AC Gearmotors are typically AC Gearmotors that have its rotor spinning at the same rate as the alternating current that is being supplied to them. The rotor can also turn at a sub multiple of the current it is supplied. Slip rings or a permanent magnet supplied with current is what generates the magnetic field around the rotor.

Where are AC Gearmotors Used
What Industries are AC Gearmotors used in? AC Gearmotors are primarily used in domestic applications due to their relatively low manufacturing costs, and durability, but are also widely used in industrial applications. What Applications are AC Gearmotors used for? AC Gearmotors can be found in numerous home appliances and applications, including: - Clocks - Power tools - Disk drives - Washing Machines and other Home Appliances - Audio turntables - Fans They can also be found in industrial applications: - Pumps - Blowers - Conveyors - Compressors

Wiring
The following information is intended as a general guideline for wiring of Anaheim Automation AC Gearmotors. Be aware that when you route power and signal wiring on a machine or system, radiated noise from the nearby relays, transformers, and other electronic devices can be inducted into the AC Gearmotors and encoder signals, input/output communications, and other sensitive low voltage signals. This can cause systems faults. WARNING - Dangerous voltages capable of causing injury or death, may be present in the AC Gearmotors system. Use extreme caution when handling, wiring, testing, and adjusting during installation, set-up, tuning, and operation. Don’t make extreme adjustments or changes to the AC Gearmotors system parameters, which can cause mechanical vibration and result in failure and/or loss. Once the AC Gearmotors system is wired, do not run by switching On/Off the power supply directly. Frequent power On/Off switching will cause fast aging of the system components, which will reduce the lifetime of AC Gearmotors system. Strictly comply with the following rules: • Follow the Wiring Diagram with each AC Motor • Route high-voltage power cables separately from low-voltage power cables • Segregate input power wiring and AC Gearmotors power cables from control wiring and gearmotors feedback cables. Maintain this separation throughout the wire run. • Use shielded cable for power wiring and provide a grounded 360 degree clamp termination to the enclosure wall. Allow room on the sub-panel for wire bends. • Make all cable routes as short as possible. NOTE: Factory made cables are recommended for use in our AC Gearmotors systems. These cables are purchased separately, and are designed to minimize EMI. These cables are recommended over customer-built cables to optimize system performance and to provide additional safety for the AC Gearmotors system and the user. WARNING - To avoid the possibility of electrical shock, perform all mounting and wiring of the AC Gearmotors prior to applying power. Once power is applied, connection terminals may have voltage present.

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