ORIENTAL MOTOR 5RK40GK-AUL Induction Contraption

( Brand: Oriental Motor ), ( Manufacturer Part Number: 5RK40GK-AUL ), ( Part Type: Motor ), ( Inverter/vector Duty Rating: Not Inverter/vector Duty Rated ), ( Special Motor Construction: Brake Motor ), ( Custom Bundle: No ), ( Insulation Class: A ), ( Current Type: Ac ), ( Unit Type: Unit ), ( Service Factor: Spl ), ( Iec Frame Size: 63 ), ( Nema Design Letter: Design A ), ( Ac Frequency Rating: 50 Hz ), ( Enclosure Type: Open ), ( Shaft Type: Straight ), ( Ac Motor Type: Induction/asynchronous ), ( Shaft Diameter: 2 1/2 In ), ( Mounting Type: Base-mounted ), ( Dc Stator/winding Type: Permanent Magnet ), ( Reversible/non-reversible: Reversible ), ( Protection Against Liquids: Not Protected ), ( Ip Rating: Not Rated ), ( Nominal Rated Input Voltage: 200 V ), ( Ac Phase: Single Phase ), ( Protection Against Solids: Dust Protected )

Review ORIENTAL MOTOR Induction Installed Contraption

The **Oriental Motor 5RK40GK-AUL** is a high-performance, brushless DC (BLDC) induction motor designed for precision control, reliability, and efficiency in demanding industrial and automation applications. Part of Oriental Motor s renowned **5RK series**, this compact yet robust motor combines advanced brushless technology with a rugged, sealed construction to deliver exceptional performance in environments where durability and consistency are critical. The **5RK40GK-AUL** features a **40mm diameter rotor**, making it ideal for applications requiring precise motion control in tight spaces, such as CNC machines, robotic systems, conveyor belts, and automated assembly lines. Its **AUL** designation indicates a **low-inertia, high-efficiency** design optimized for rapid acceleration, deceleration, and smooth operation, reducing energy consumption while minimizing mechanical stress on connected components.

What sets this motor apart is its integration with **Oriental Motor s advanced servo and stepper motor control systems**, allowing seamless compatibility with their **AMS (Automatic Motion System)** controllers for closed-loop feedback and position accuracy. The motor s **permanent magnet synchronous design** eliminates brush wear and friction, ensuring longer operational life with reduced maintenance requirements. Its **IP65-rated enclosure** provides robust protection against dust, debris, and moisture, making it suitable for harsh industrial settings, including manufacturing plants, food processing facilities, and outdoor automation systems. The **5RK40GK-AUL** also incorporates **low-vibration and low-noise operation**, thanks to its balanced rotor and optimized winding configuration, which enhances system reliability and extends the lifespan of associated machinery.

For engineers and designers seeking a motor that balances **compact size with high torque output**, this unit delivers **up to 0.25 Nm of continuous torque** (depending on voltage and configuration), making it versatile for applications ranging from light-duty positioning tasks to medium-load material handling. Its **modular mounting options**, including keyed shafts and flange mounts, ensure easy integration into existing systems, while the **wide range of compatible gearheads and encoders** (available as optional accessories) further expands its functionality for applications requiring speed reduction or precise feedback. Whether deployed in a **high-speed indexing system, a precision linear actuator, or a compact robotic arm**, the **5RK40GK-AUL** exemplifies Oriental Motor s commitment to delivering a motor that is not only efficient but also adaptable to the evolving demands of modern automation. With its **energy-efficient brushless architecture, silent operation, and long-term reliability**, this motor stands as a dependable choice for engineers prioritizing performance, precision, and operational longevity.

### **Pros and Cons of buying a Oriental Motor 5RK40GK-AUL Induction Motor**

1. **High Efficiency and Reliability** Oriental Motors are known for their robust construction and energy-efficient performance, making them suitable for continuous operation in industrial and commercial applications.

2. **Durable Build Quality** The motor features a sturdy frame, high-quality bearings, and a sealed design, which helps extend its lifespan even in demanding environments.

3. **Wide Voltage Range Compatibility** The 5RK40GK-AUL operates on a 200-240V AC range, providing flexibility for different electrical setups without requiring significant modifications.

4. **Low Maintenance Requirements** Induction motors like this one typically require minimal upkeep, such as periodic lubrication and alignment checks, reducing downtime.

5. **Cost-Effective Operation** While the initial purchase price may be moderate, its efficiency translates to lower energy consumption over time, offering long-term savings.

6. **Compatibility with Standard Controls** It works seamlessly with conventional variable frequency drives (VFDs) and control systems, making integration easier in existing setups.

7. **Good Thermal Management** The motor includes features like thermal protection to prevent overheating, enhancing safety and longevity.

8. **Global Availability of Parts** Oriental Motors have a widespread distribution network, ensuring easier access to replacement components if needed.

1. **Higher Upfront Cost Compared to Basic Motors** While not excessively expensive, it is priced higher than entry-level induction motors, which may be a consideration for budget-conscious buyers.

2. **Limited Customization Options** The motor comes with standard specifications, and significant modifications (such as custom mounting or wiring) may require additional work.

3. **Sensitivity to Voltage Fluctuations** Like most induction motors, it can be affected by voltage spikes or drops, potentially reducing efficiency or causing premature wear if power quality is poor.

4. **Noise and Vibration** Some induction motors, depending on load and speed, can generate noticeable noise and vibration, which may be a concern in noise-sensitive environments.

5. **Dependence on Proper Installation** Misalignment, improper wiring, or incorrect load matching can lead to reduced performance or failure, requiring skilled installation.

6. **Limited Warranty Compared to Premium Brands** While Oriental Motors offer a solid warranty, it may not be as extensive as high-end brands like Siemens or ABB, depending on the region.

7. **Potential for Higher Inrush Current** At startup, induction motors draw significant current, which could stress electrical systems if not accounted for.

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### **Conclusion**

The **Oriental Motor 5RK40GK-AUL** is a well-engineered, efficient induction motor that excels in reliability, durability, and energy savings. It is an excellent choice for industrial, HVAC, or commercial applications where consistent performance and low maintenance are priorities. However, its suitability depends on specific use cases particularly whether the environment has stable power conditions and whether the user can justify the slightly higher cost for long-term benefits.

For **general-purpose applications** (e.g., fans, pumps, conveyors) where efficiency and longevity matter, this motor is a **strong recommendation**. If budget constraints are a major concern or if the application involves extreme environmental conditions (e.g., high dust, corrosive environments), evaluating alternatives like explosion-proof or premium-brand motors may be wise.

- You need a dependable, energy-efficient motor for standard industrial/commercial use.

- Your electrical system can handle its inrush current and voltage requirements.

- You prioritize long-term reliability over the lowest upfront cost.

- You require specialized features (e.g., explosion-proof, ultra-low noise).

- Your budget is extremely tight, and a slightly less efficient motor would suffice.

- The operating environment has severe power quality issues.

Details:

5RK40GK-AUL PART INDUCTION MOTOR, INSTALLED ON MOUNT.

part #: 5rk40gk prices

• $32.85-$384.80

specifications oelemot:

• brand: Oriental Motor
• mpn: 5rk40gk-aul
• part type: Motor
• inverter/vector duty rating: Not Inverter/vector Duty Rated
• special motor construction: Brake Motor
• custom bundle: No
• insulation class: A
• current type: Ac
• unit type: Unit
• service factor: Spl
• iec frame size: 63
• nema design letter: Design A
• ac frequency rating: 50 Hz
• enclosure type: Open
• shaft type: Straight
• ac motor type: Induction/asynchronous
• shaft diameter: 2 1/2 In
• mounting type: Base-mounted
• dc stator/winding type: Permanent Magnet
• reversible/non-reversible: Reversible
• protection against liquids: Not Protected
• ip rating: Not Rated
• nominal rated input voltage: 200 V
• ac phase: Single Phase
• protection against solids: Dust Protected

payments oelemot:

• credit card: Discover
• other
• wallet: Google-pay

offer oelemot:

• quantity: 1
• options: Ship-to-home
• started: March 19, 2026
• best offers: True
• sold: 0
• availability: In Stock

seller oelemot:

• # reviews: 90
• rating: 100.0%
• city: Wichita, Kansas

returns oelemot:

• policy: No Returns

shipping oelemot:

• class: Standard, One-day, Economy
• carrier: USPS, FedEx
• transit: 4-7 Days
• service: USPS Ground Advantage, FedEx Ground / FedEx Home Delivery, FedEx Priority Overnight, USPS Media Mail
• type: Calculated
• cost: $67.07

general oelemot:

• Industrial Automation Motion Controls > Electric Motors > General Purpose Motors
• condition: Used

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