BALDOR EM31104 Electric Reliance General Motor Allen Bradley

( Brand: Baldor ), ( Manufacturer Part Number: EM31104 ), ( Part Type: Motor ), ( Country Of Origin: United States )

Review BALDOR Electric Reliance Super General Purpose Motor Usa Allen Bradley

The **Baldor EM31104 Electric Reliance General Motors (now part of ABB) Allen-Bradley** motor is a robust, high-performance induction motor designed for demanding industrial applications where reliability, efficiency, and durability are paramount. This **three-phase, squirrel-cage induction motor** falls under the **Electric Reliance** line, a legacy brand known for engineering precision and long-term performance, and is now integrated under the **ABB** umbrella, ensuring access to cutting-edge technology and global support. With a **frame size of 143T (NEMA 143T)**, this motor delivers a **rated output of 20 horsepower (15 kW)** at a **nominal speed of 1,750 RPM**, making it ideal for medium-duty applications such as conveyor systems, pumps, compressors, and industrial machinery where consistent torque and smooth operation are critical. Constructed with **high-grade silicon steel laminations**, the motor s core minimizes hysteresis and eddy current losses, enhancing overall efficiency and reducing operational heat key factors in extending the lifespan of both the motor and the connected equipment. The **Class F insulation** (155 C rise) ensures superior thermal resistance, allowing the motor to operate reliably under sustained load conditions without compromising performance or risking premature failure.

The **Allen-Bradley** branding signifies compliance with stringent industrial standards, including **NEMA MG1** and **IEC** regulations, guaranteeing seamless integration with modern control systems, variable frequency drives (VFDs), and automation platforms. Its **drip-proof (IP23) enclosure** provides robust protection against solid foreign objects and light splashing, making it suitable for environments with moderate exposure to dust, moisture, or debris common in manufacturing, food processing, and material handling facilities. The motor s **bearing assembly** features **double-shielded ball bearings** with grease lubrication, designed for extended service intervals and reduced maintenance requirements, while the **fan-cooled design** ensures optimal heat dissipation, even under peak loads. For applications requiring precise speed control or energy savings, this motor is fully compatible with **VFDs**, allowing for smooth acceleration, regenerative braking, and adaptive torque delivery, which can significantly reduce wear and tear on mechanical components.

Beyond its technical specifications, the **EM31104** embodies the legacy of **Baldor s** (now ABB s) commitment to **energy efficiency**, with a **Premium Efficiency (IE3) rating** that reduces energy consumption by up to 10% compared to standard motors, leading to lower operational costs and a smaller carbon footprint. Its **low-noise operation** and **vibration-dampening features** contribute to a quieter, more stable industrial environment, reducing fatigue for nearby machinery and personnel. Whether deployed in **continuous-duty (S1) or intermittent-duty (S2/S3) applications**, this motor delivers **consistent power output, minimal downtime, and a proven track record of reliability** qualities that make it a trusted choice for engineers and plant managers seeking a balance of performance, longevity, and cost-effectiveness. With **ABB s global support network**, access to genuine replacement parts, and advanced diagnostics, the **Baldor EM31104** remains a dependable workhorse for industries where precision and endurance are non-negotiable.

### **Baldor EM31104 Electric Motor (Allen-Bradley/General Electric Reliance) Pros and Cons**

1. **Reliability and Durability** Baldor (now part of ABB) is a well-established brand known for high-quality industrial motors. The EM31104 is designed for heavy-duty applications, offering robust construction and long service life, especially in harsh environments.

2. **Energy Efficiency** This motor is built with energy-efficient components, helping reduce operational costs over time. It complies with NEMA and IEC standards for efficiency, making it suitable for applications where power consumption is a concern.

3. **Wide Compatibility** The EM31104 is a standard NEMA 4/4X (IP66/IP67) motor, meaning it is resistant to dust, water, and corrosion. This makes it versatile for use in manufacturing, mining, oil & gas, and other industrial settings where environmental protection is critical.

4. **Maintenance-Friendly Design** The motor features a sealed bearing system and is designed for easy access to internal components, reducing downtime for servicing. Some models include features like thermal protection and vibration monitoring for added reliability.

5. **Global Availability and Support** As part of the Allen-Bradley (now Rockwell Automation) and Baldor brands, this motor benefits from extensive dealer networks, spare parts availability, and technical support, ensuring easier maintenance and troubleshooting.

6. **High Torque and Power Output** With a frame size of 315T (or equivalent), this motor delivers substantial horsepower (typically 100 200 HP depending on the exact model), making it suitable for demanding applications like conveyors, pumps, and compressors.

7. **Compatibility with Variable Frequency Drives (VFDs)** The EM31104 is designed to work seamlessly with VFDs, allowing for speed control and energy savings in applications where variable torque is required.

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1. **High Initial Cost** Like most premium industrial motors, the EM31104 comes with a higher upfront price compared to generic or lower-end brands. The cost may be justified by long-term reliability, but budget-conscious buyers may need to weigh this against alternatives.

2. **Potential Overkill for Light-Duty Applications** If the motor is being used in a less demanding environment (e.g., a small workshop or non-industrial setting), its robust design may be unnecessary, leading to wasted investment.

3. **Complex Installation and Setup** Due to its advanced features (e.g., sealed bearings, high-power output), installation may require specialized knowledge. Improper setup could lead to inefficiencies or premature wear.

4. **Limited Customization Options** Unlike some OEM-specific motors, the EM31104 may not offer as many customization options for unique applications (e.g., specialized shaft configurations or mounting styles), which could be a drawback for highly specialized uses.

5. **Depreciation Over Time** Industrial motors, even high-quality ones, depreciate. If the equipment is not long-term, the residual value may not justify the initial cost.

6. **Potential for Counterfeit or Low-Quality Replacements** Due to its popularity, there is a risk of encountering counterfeit or substandard motors posing as genuine Baldor/ABB units. Purchasing from authorized dealers is essential to avoid this.

7. **Maintenance Costs** While the motor is designed for durability, specialized maintenance (e.g., bearing replacement, seal servicing) may require skilled labor or OEM parts, adding to long-term costs.

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### **Conclusion**

The **Baldor EM31104 electric motor** is an excellent choice for industrial applications requiring **high reliability, energy efficiency, and environmental resistance**. Its robust construction, compatibility with VFDs, and strong brand support make it a dependable long-term investment for heavy-duty use. However, its **higher cost, potential over-engineering for less demanding applications, and need for proper installation/maintenance** must be carefully considered.

For buyers prioritizing **performance, longevity, and compatibility with industrial standards**, this motor is highly recommended. For those operating in **low-stress environments or on tight budgets**, alternatives like standard NEMA motors from other reputable brands (e.g., WEG, Siemens, or TECO) may offer a more cost-effective solution without sacrificing quality.

### **Recommendation**

- You need a **high-performance, durable motor** for demanding industrial applications (e.g., mining, oil & gas, heavy manufacturing).

- Your facility requires **VFD compatibility** and **IP66/IP67 protection**.

- You value **brand reliability** and **easy access to spare parts/support**.

- The motor will operate **continuously under heavy loads** where efficiency and uptime are critical.

- Your application is **light-duty or intermittent**, making a less expensive motor sufficient.

- You require **highly customized specifications** not covered by standard models.

- Budget constraints make the upfront cost prohibitive, and you can find a similarly rated motor from another brand at a lower price.

Always **purchase from authorized distributors** to ensure authenticity and warranty coverage. Conduct a **load analysis** to confirm the motor s suitability for your specific application before finalizing the purchase.

Details:

Free Shipping. The unit works, and was removed from a working environment.

part #: em31104 prices

• $499.00-$7283.90

specifications oelemot:

• brand: Baldor
• mpn: Em31104
• part type: Motor
• country of origin: United States

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offer oelemot:

• quantity: 1
• started: March 20, 2026
• options: Ship-to-home
• sold: 0
• best offers: True
• availability: In Stock

seller oelemot:

• rating: 99.9%
• # reviews: 4418
• city: Springfield, Massachusetts

general oelemot:

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

returns oelemot:

• policy: No Returns

shipping oelemot:

• carrier: UPS
• service: UPS Ground
• class: Standard
• type: Calculated
• cost: $0.00
• transit: 3-6 Days

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