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  3. ORIENTAL 21K6GN-AW

ORIENTAL MOTOR 21K6GN-AW Induction

21k6gn-aw Oriental Motor Induction

( Brand: Oriental Motor ), ( Manufacturer Part Number: 21K6GN-AW ), ( Part Type: Motor ), ( Country Of Origin: Japan )

Review ORIENTAL MOTOR Induction

The **Oriental Motor 21K6GN-AW Induction Motor** is a high-performance, three-phase, permanent-split capacitor (PSC) induction motor designed for precision control, reliability, and energy efficiency in a wide range of industrial, commercial, and automation applications. Engineered with Oriental Motor s signature attention to detail, this motor combines robust construction with advanced electrical and mechanical engineering to deliver consistent, high-torque performance under varying load conditions. The **21K6GN-AW** features a compact yet durable **NEMA 21 frame**, making it ideal for space-constrained environments while maintaining a robust IP54 protection rating, ensuring resistance to dust, dirt, and splashing water perfect for harsh or unprotected operating environments. Its **1/3 horsepower (75W) output** provides sufficient power for applications requiring moderate torque, such as conveyor systems, small machine tools, pumps, fans, and automated equipment, while its **120V AC, single-phase** design simplifies integration into standard electrical systems without the need for complex three-phase wiring.

One of the standout features of this motor is its **capacitor-start, permanent-split capacitor (PSC) design**, which ensures smooth, vibration-free startup and continuous operation. The built-in capacitor not only enhances starting torque but also improves efficiency by maintaining optimal current draw throughout the motor s operational cycle, reducing energy consumption and heat generation. The **AW model** specifically incorporates a **low-noise, high-efficiency winding configuration**, minimizing electromagnetic interference (EMI) and operational noise, which is particularly advantageous in sensitive environments such as cleanrooms, laboratories, or office automation systems. Additionally, the motor s **ball-bearing support system** provides long-term reliability, reducing friction and wear while extending the lifespan of critical components.

For applications requiring precise speed control or integration with variable frequency drives (VFDs), the **21K6GN-AW** is compatible with Oriental Motor s **E-Series and S-Series encoders and feedback devices**, enabling seamless incorporation into closed-loop control systems. Its **standard mounting options**, including foot-mounted or flange-mounted configurations, offer flexibility in installation, while the **low-inertia rotor design** allows for rapid acceleration and deceleration, making it suitable for applications demanding quick response times. The motor s **high-temperature tolerance** (up to **155 C** at the winding) ensures reliable performance in elevated ambient conditions, further expanding its versatility across diverse industrial settings.

Built with **high-quality materials**, including corrosion-resistant coatings and reinforced insulation, the **21K6GN-AW** is designed to withstand prolonged use without degradation. Oriental Motor s rigorous quality control processes ensure that each unit meets strict performance and safety standards, including compliance with **UL, CSA, and CE certifications**, providing peace of mind for engineers and maintenance personnel. Whether deployed in manufacturing, HVAC systems, medical equipment, or automated material handling, this motor delivers a perfect balance of power, efficiency, and durability, making it a dependable choice for both original equipment manufacturers (OEMs) and end-users seeking a cost-effective, high-performance solution.

**Pros and Cons of buying a Oriental Motor 21K6GN-AW Induction Motor**

The Oriental Motor 21K6GN-AW is a 1/3 HP, 120V, single-phase, induction motor commonly used in small machinery, appliances, and automation systems. Below is a detailed breakdown of its advantages and disadvantages.

### **Pros**

1. **Reliability and Durability**

The Oriental Motor brand is well-regarded for producing long-lasting, high-quality motors. The 21K6GN-AW is designed for continuous operation, making it suitable for industrial and commercial applications where uptime is critical.

2. **Energy Efficiency**

Induction motors, including this model, are generally more energy-efficient than older DC motors. The 21K6GN-AW operates at a reasonable efficiency for its power rating, reducing operational costs over time.

3. **Compact and Lightweight Design**

The motor is relatively small and lightweight for its power output, making it easy to install in tight spaces or applications where weight is a concern.

4. **Low Maintenance Requirements**

Induction motors typically require minimal maintenance compared to other motor types. The 21K6GN-AW has a sealed design, reducing exposure to dust and contaminants, which extends its lifespan.

5. **Wide Compatibility**

The motor is compatible with a variety of single-phase power supplies (120V) and can be used in applications such as fans, pumps, conveyors, and small machinery. It can also be paired with standard V-belts, pulleys, or gearboxes.

6. **Cost-Effective for Small Applications**

For low-power applications (1/3 HP), this motor offers a balance between performance and affordability. It is often cheaper than higher-end servo or stepper motors while still providing adequate performance.

7. **Easy to Replace and Replaceable Parts Availability**

Oriental Motor is a well-established manufacturer, so replacement parts and technical support are readily available. This reduces downtime if repairs are needed.

8. **Quiet Operation**

Compared to some brushed DC motors, induction motors like this one tend to run more quietly, making them suitable for applications where noise is a concern.

9. **No Brushes or Commutator Wear**

Since it is an induction motor, it avoids the wear and tear associated with brushes and commutators found in DC motors, leading to fewer mechanical failures over time.

10. **Versatile Speed Control Options**

While it is a fixed-speed motor, it can be paired with variable frequency drives (VFDs) for speed control, adding flexibility in applications where adjustable speeds are needed.

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### **Cons**

1. **Fixed Speed Operation**

The 21K6GN-AW is a standard induction motor and does not have built-in speed control. If variable speed is required, an external VFD must be added, increasing system complexity and cost.

2. **Lower Torque at Low Speeds**

Induction motors, especially smaller ones like this, may struggle to maintain consistent torque at very low speeds. This can be a limitation in applications requiring precise control or high starting torque.

3. **Sensitivity to Voltage Fluctuations**

Induction motors are somewhat sensitive to voltage variations. If the power supply is unstable, the motor may experience reduced efficiency, overheating, or premature failure.

4. **Limited Overload Capacity**

While induction motors are robust, they have a defined overload capacity. Prolonged operation at or near maximum load can lead to overheating, reducing the motor s lifespan.

5. **No Built-In Encoder or Feedback**

Unlike servo motors, the 21K6GN-AW lacks feedback mechanisms (e.g., encoders). This means precise position or speed control requires additional sensors or controllers, adding cost and complexity.

6. **Higher Inrush Current**

Induction motors draw a significant amount of current when starting, which can stress electrical systems or require additional protection components like starters or soft starters.

7. **Less Precise Than Servo Motors**

For applications requiring high precision (e.g., CNC machines, robotics), induction motors are not as accurate as servo or stepper motors, which offer closed-loop control.

8. **Limited Environmental Resistance**

While the motor is sealed, it may not be suitable for extreme environments (e.g., high humidity, corrosive atmospheres, or high-temperature conditions) without additional protection.

9. **Dependence on External Components for Advanced Functions**

Features like braking, regenerative energy recovery, or advanced diagnostics require additional hardware (e.g., brakes, VFDs, or sensors), increasing system cost and maintenance.

10. **Potential for Resonance Issues**

In some applications, the motor s natural frequency may align with operational frequencies, leading to vibration or resonance problems. This requires careful system design to mitigate.

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### **Conclusion**

The Oriental Motor 21K6GN-AW is a solid choice for **low-power, fixed-speed applications** where reliability, simplicity, and cost-effectiveness are prioritized. It excels in general-purpose machinery, small appliances, and automation systems where precise speed control is not required. Its durability, low maintenance, and compatibility with standard power supplies make it a practical option for many users.

However, if your application demands **variable speed, high torque at low speeds, or precise positioning**, you may need to pair this motor with additional components (e.g., a VFD or encoder) or consider alternative motor types like servo or stepper motors. Additionally, users in environments with **unstable power supplies or extreme conditions** should ensure proper protection and cooling to maximize the motor s lifespan.

For most **basic to moderate industrial, commercial, or hobbyist applications**, the 21K6GN-AW offers a **good balance of performance and affordability**. If budget and simplicity are key, and the motor s limitations align with your needs, it is a **recommended purchase**.

For applications requiring **advanced control or high precision**, investing in a more sophisticated motor system (e.g., servo motor with a VFD) may be justified despite the higher upfront cost. Always evaluate your specific requirements before making a decision.

Details:

ORIENTAL MOTOR INDUCTION CATALOG #: 21K6GN-AW LOCATION: SH 5-1.

part #: 21k6gn prices

  • $38.80-$75.94

specifications oelemot:

  • brand: Oriental Motor
  • mpn: 21k6gn-aw
  • part type: Motor
  • country of origin: Japan

shipping oelemot:

  • transit: 4-8 Days
  • service: USPS Priority Mail, UPS Ground, UPS Next Day Air
  • type: Calculated
  • class: Expedited, Standard, One-day
  • cost: $18.00
  • carrier: USPS, UPS

offer oelemot:

  • quantity: 1
  • sold: 0
  • started: March 12, 2026
  • options: Ship-to-home
  • availability: In Stock

payments oelemot:

  • credit card: Mastercard
  • other
  • wallet: Apple-pay

returns oelemot:

  • paid by: Buyer
  • time: 30 Days
  • method: Money back
  • policy: Returns Accepted

seller oelemot:

  • city: Tuckerton, New Jersey
  • # reviews: 2069
  • rating: 99.4%

general oelemot:

  • condition: Used
  • Industrial Automation Motion Controls > Electric Motors > General Purpose Motors
part type: motor, country of origin: japan,
category: business & industrial > industrial automation motion controls > electric > general purpose, sku: 20890404401240723,
Oriental Motor 21K6GN Is Similar To:
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5 offers $38.80–$75.94 USD
  • Used. Offer #1 priced at $38.80 + $18.05 shipping estimate = $56.85* total. Oriental Motor 21 K6GN-SW2 induction motor.+$18.05 shipping
  • New – Open box. Offer #2 priced at $75.94 + $12.90 shipping estimate = $88.84* total. +$12.90 shipping
  • Used. Offer #3 priced at $64.54 + $12.90 shipping estimate = $77.44* total. +$12.90 shipping
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  • Used. Offer #5 priced at $44.99 + $19.45 shipping estimate = $64.44* total. INDUCTION MOTOR.+$19.45 shipping

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