1. Motors For Automation Drives Motion Control Sale
  2. sku: 20972845182877604
  3. ORIENTAL 5RK40GN-AWM

ORIENTAL MOTOR 5RK40GN-AWM Ac Magnetic Brake

5rk40gn-awm Oriental Motor Ac Magnetic Brake

( Brand: Oriental Motor ), ( Manufacturer Part Number: 5RK40GN-AWM ), ( Part Type: Ac Brake Motor ), ( Reversible/non-reversible: Reversible ), ( Current Type: Ac ), ( Protection Against Liquids: Not Protected ), ( Special Motor Construction: Brake Motor ), ( Ac Motor Type: Induction/asynchronous ), ( Nominal Rated Input Voltage: 110 V, 100v ), ( Ac Phase: Single Phase )

Review ORIENTAL MOTOR Ac Magnetic Brake

The **Oriental Motor 5RK40GN-AWM AC Magnetic Brake** is a high-performance, precision-engineered braking solution designed for demanding industrial applications where reliability, efficiency, and smooth operation are paramount. Part of Oriental Motor s renowned **5RK series**, this compact yet robust magnetic brake is specifically engineered to integrate seamlessly with AC servo motors, providing precise torque control and rapid response for dynamic motion control systems. The **AWM** designation indicates its **air-cooled** design, making it ideal for environments where heat dissipation is critical, such as CNC machines, robotics, packaging equipment, or automated assembly lines. With a **40 mm shaft diameter**, this brake offers substantial holding torque up to **100 Nm (882.1 lb-in)** while maintaining a compact footprint, allowing for efficient space utilization in tight mechanical setups. Its **permanent magnet rotor** ensures consistent braking force without the need for external power during hold mode, significantly reducing energy consumption compared to traditional electromagnetic brakes.

The **5RK40GN-AWM** features Oriental Motor s advanced **AC magnetic brake technology**, which combines a **rare-earth magnet assembly** with a **high-efficiency copper winding stator**, delivering smooth, jitter-free braking with minimal wear over extended operational lifespans. The brake s **adjustable air gap** allows for fine-tuning of torque output, accommodating a wide range of load requirements while ensuring optimal performance across varying speeds. Its **sealed construction** protects internal components from dust, moisture, and contaminants, making it suitable for both cleanroom and harsh industrial environments. The brake s **low inertia design** minimizes energy loss during acceleration and deceleration, enhancing overall system efficiency, particularly in applications requiring frequent start-stop cycles.

For ease of integration, the **5RK40GN-AWM** is compatible with Oriental Motor s **AC servo motors** and can be directly mounted via a **keyed shaft connection**, ensuring precise alignment and minimal backlash. The brake s **compact housing** and **standardized mounting dimensions** simplify retrofitting into existing machinery, reducing downtime during installation. Additionally, the **AWM s air-cooling capability** eliminates the need for forced-air systems, lowering maintenance requirements while maintaining reliable performance under continuous operation. Oriental Motor s reputation for **high-quality manufacturing** ensures that this brake operates with exceptional durability, offering **tens of thousands of hold cycles** before requiring servicing, making it a cost-effective solution for long-term industrial applications.

Whether used in **high-speed indexing tables, precision cutting machines, or automated material handling systems**, the **5RK40GN-AWM AC Magnetic Brake** delivers the precision, reliability, and efficiency required to meet the most exacting motion control demands. Its **scalable torque range, low maintenance design, and seamless integration** with servo systems make it a versatile choice for engineers and manufacturers seeking a dependable braking solution that enhances both performance and operational longevity.

### **Pros and Cons of buying a Oriental Motor 5RK40GN-AWM AC Magnetic Brake**

#### **Pros:**

1. **High Torque and Power Efficiency** The magnetic brake is designed for precise torque control, making it suitable for applications requiring smooth starts, stops, and position holding. Its AC motor ensures reliable performance in industrial and automation settings.

2. **Low Maintenance** Magnetic brakes eliminate the need for mechanical friction parts (like clutch plates or bands), reducing wear and tear. This leads to longer operational life with minimal upkeep.

3. **Fast Response Time** The electromagnetic activation allows for quick engagement and disengagement, improving cycle times in automated systems.

4. **Energy Savings** Since the brake does not dissipate energy as heat (unlike friction brakes), it can contribute to lower energy consumption in certain applications.

5. **Compact and Lightweight** The design is often more space-efficient than traditional mechanical brakes, making it easier to integrate into existing systems.

6. **Reliable in Harsh Environments** The sealed construction protects internal components from dust, moisture, and contaminants, making it suitable for industrial and outdoor applications.

7. **Adjustable Torque Settings** Some models allow for fine-tuning of braking force, accommodating different load requirements.

8. **Quiet Operation** Magnetic brakes produce minimal noise compared to mechanical friction brakes, which can be beneficial in noise-sensitive environments.

9. **Compatibility with Variable Frequency Drives (VFDs)** Works well with modern motor control systems, enabling smooth acceleration and deceleration.

10. **Long Lifespan** With proper installation and usage, magnetic brakes can last significantly longer than friction-based alternatives.

---

#### **Cons:**

1. **Higher Initial Cost** Magnetic brakes are generally more expensive upfront compared to traditional mechanical brakes, which may be a barrier for budget-conscious buyers.

2. **Dependence on Electrical Power** Unlike mechanical brakes, magnetic brakes require a power source (AC) to function. Power failures or voltage fluctuations can cause the brake to disengage unexpectedly, potentially leading to uncontrolled movement.

3. **Limited Torque Range** While effective for moderate loads, extremely high torque applications may require oversizing the brake or additional mechanical assistance.

4. **Heat Dissipation Concerns** In continuous duty cycles, the motor and brake may generate heat, requiring adequate cooling to prevent overheating.

5. **Sensitivity to Voltage Variations** Fluctuations in AC voltage can affect braking performance, potentially leading to inconsistent stopping or engagement.

6. **Not Ideal for High-Speed Applications** Magnetic brakes are best suited for moderate speeds; extremely high-speed applications may require additional damping or mechanical brakes for safety.

7. **Installation Complexity** Proper alignment and wiring are critical for optimal performance. Incorrect installation can lead to inefficiency or failure.

8. **Limited Availability of Spare Parts** Compared to more common mechanical brakes, finding replacement parts for Oriental Motor s magnetic brakes may be more challenging.

9. **Potential for Electrical Issues** Over time, wiring or electrical components may degrade, requiring periodic inspection to avoid malfunctions.

10. **Not Suitable for All Load Types** Heavy dynamic loads (e.g., sudden impacts) may stress the brake more than static or steady loads, potentially reducing its lifespan.

---

### **Conclusion and Recommendation**

The **Oriental Motor 5RK40GN-AWM AC Magnetic Brake** is an excellent choice for applications requiring **precise torque control, low maintenance, and smooth operation** in industrial automation, conveyor systems, or positioning equipment. Its **energy efficiency, compact design, and reliability in controlled environments** make it a strong contender for modern applications where mechanical friction brakes would be less ideal.

However, if **cost is a primary concern, electrical reliability is questionable, or the application involves extreme loads or high speeds**, a traditional mechanical brake or a hybrid system might be more appropriate. Additionally, users must ensure **proper installation, adequate cooling, and stable power supply** to maximize performance and longevity.

**Final Recommendation:**

- **Buy if:** You need a **low-maintenance, high-precision brake** for **moderate to heavy-duty industrial applications** where **energy efficiency and smooth operation** are critical.

- **Avoid if:** Your budget is tight, **power stability is unreliable**, or the application involves **extreme loads, high speeds, or dynamic impacts** without additional safeguards.

- **Consider alternatives:** If cost is a major factor, explore **mechanical disc brakes or band brakes**, but weigh the trade-offs in maintenance and performance.

For most **automation and conveyor systems**, the **5RK40GN-AWM is a robust and efficient choice** when properly integrated into the system. Always consult the manufacturer s specifications and a qualified engineer to ensure compatibility with your specific application.

Details:

The Oriental Motor AC Magnetic Brake 5RK40Gn-AWM is a reversible induction motor designed for industrial automation and motion control applications. Its special construction as a brake motor ensures reliable and efficient braking capabilities. With a nominal rated input voltage of 100V and 110V, this motor is suitable for variety businesses industrial settings. Does come with the instruction manual just no box.

With its single-phase AC motor type and NEMA frame suffix of A, this offers a high-quality durable solution for various motion control needs. This item looks new very little use if any on this motor.

part #: 5rk40gn prices

  • $52.49-$455.00

specifications oelemot:

  • brand: Oriental Motor
  • mpn: 5rk40gn-awm
  • part type: Ac Brake Motor
  • reversible/non-reversible: Reversible
  • current type: Ac
  • protection against liquids: Not Protected
  • special motor construction: Brake Motor
  • ac motor type: Induction/asynchronous
  • nominal rated input voltage: 110 V, 100v
  • ac phase: Single Phase

offer oelemot:

  • quantity: 1
  • started: March 17, 2026
  • options: Ship-to-home
  • availability: In Stock
  • sold: 0
  • best offers: True

general oelemot:

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

returns oelemot:

  • policy: No Returns

shipping oelemot:

  • transit: 4-11 Days
  • service: USPS Ground Advantage
  • cost: $75.00
  • type: Fixed
  • class: Standard
  • carrier: USPS

seller oelemot:

  • rating: 0.0%
  • city: Coloma, Michigan
  • # reviews: 5

payments oelemot:

  • other
  • credit card: Visa
  • wallet: Google-pay
part type: ac brake motor, reversible/non-reversible: reversible, current type: ac, protection against liquids: not protected, special motor construction: brake motor, ac motor type: induction/asynchronous, nominal rated input voltage: 110 v, 100v, ac phase: single phase,
category: business & industrial > industrial automation motion controls > electric > general purpose, sku: 20972845182877604,
Oriental Motor 5RK40GN Is Similar To:
oelemot logo
5 offers $52.49–$455.00 USD
  • Used. Offer #1 priced at $52.49 + $0.00 shipping estimate = $52.49* total. Explore the future of motion control!. Unlock the power of precision with the Oriental Motors AC Magnetic Brake Motor -CWM, paired with the 5GN5K Gear Head.FREE SHIPPING
  • New – Open box. Offer #2 priced at $127.00 + $19.45 shipping estimate = $146.45* total. Takes longer. See photos for details.+$19.45 shipping
  • New – Open box. Offer #3 priced at $455.00 + $24.60 shipping estimate = $479.60* total. +$24.60 shipping
  • Used. Offer #4 priced at $99.99 + $23.32 shipping estimate = $123.31* total. Oriental Motor -Cwm Ac Magnetic Brake Motor Used.+$23.32 shipping
  • New. Offer #5 priced at $319.95 + $30.61 shipping estimate = $350.56* total. Oriental Motor -AWMU Motor. Oriental Motor -AWMU electromagnetic brake motor paired with a 5GN50RAA right-angle gearhead.+$30.61 shipping

Copyright © oelemot.com