
( Brand: Baldor Reliance ), ( Manufacturer Part Number: 1055656 ), ( Part Type: Hp Motor ), ( Actual Rated Input Voltage: 208-230/460 ), ( Full Load Amps: 9.88-9.4/4.7 ), ( Rated Load: Hp ), ( Ac Frequency Rating: 60 Hz ), ( Enclosure Type: Tefc ), ( Base Rpm: 1750 ), ( Ac Motor Type: Induction/asynchronous ), ( Mounting Type: Base-mounted ), ( Current Type: Ac ), ( Service Factor: 1.15 ), ( Nominal Rated Input Voltage: 208 V, 230 V, 460 V ), ( Ac Phase: Three Phase )
The **Baldor Reliance 1750 RPM, 3.7 Horsepower, 3-Phase TEFC Motor (Model 1055656)** is a robust, high-performance electric motor engineered for reliability, efficiency, and durability in demanding industrial applications. Part of Baldor s renowned Reliance series, this motor delivers consistent performance across a wide range of power systems, making it an ideal choice for manufacturing, processing, and mechanical equipment where precision and dependability are critical. With a **3.7 horsepower output**, it provides sufficient torque and speed to drive conveyors, pumps, compressors, and other machinery with ease, ensuring optimal productivity in both light-duty and moderate workload scenarios. The motor operates seamlessly on **208-230V or 460V three-phase power supplies**, offering versatility for integration into various electrical configurations without compromising performance.
Designed with **Total Enclosed Fan-Cooled (TEFC) construction**, this motor features a sealed enclosure that protects internal components from dust, debris, and moisture while allowing for efficient heat dissipation through an external fan. This design enhances longevity by preventing overheating and reducing maintenance requirements, making it well-suited for environments where cleanliness and protection against harsh conditions are essential. The **1750 RPM synchronous speed** ensures smooth operation and minimal vibration, contributing to quieter performance and extended bearing life. Built with **high-quality materials**, including corrosion-resistant coatings and precision-engineered windings, the motor resists wear and tear, delivering reliable service even under continuous operation.
Baldor s reputation for innovation is evident in the **Reliance series**, which incorporates advanced engineering to optimize energy efficiency and operational consistency. The motor s **NEMA Premium efficiency rating** ensures lower energy consumption, reducing operational costs while maintaining high performance. Its **standard NEMA frame size** (likely a 143T or similar, depending on exact configuration) allows for easy mounting and compatibility with a wide range of industry-standard gearboxes, belts, and couplings. Whether used in food processing, material handling, or HVAC systems, this motor s **seamless integration** and **proven durability** make it a cost-effective solution for businesses seeking long-term reliability without sacrificing performance.
For applications requiring **high starting torque or frequent cycling**, the motor s robust construction and efficient design ensure it can handle the demands of heavy-duty tasks while maintaining thermal stability. Baldor s commitment to quality control means that each unit undergoes rigorous testing to meet or exceed industry standards, including **UL, CSA, and IEC certifications**, ensuring compliance with global safety regulations. With minimal maintenance needs and a **long service life**, the **Baldor Reliance 1055656 motor** represents a smart investment for industries prioritizing performance, efficiency, and operational uptime. Its combination of **versatility, durability, and energy efficiency** makes it a standout choice for engineers and facility managers seeking a motor that delivers consistent, high-quality power in any industrial setting.
### **Baldor Reliance 1055656 Motor (3.7 HP, 3-Phase, 208-230/460V, 1750 RPM, TEFC) Pros and Cons**
#### **Pros:**1. **Reliability and Durability** Baldor (now part of ABB) is a well-known brand in industrial motors, known for high-quality, long-lasting products. This motor is designed for continuous duty (S1) and should perform well in demanding applications.
2. **Wide Voltage Range (208-230V / 460V)** The dual-voltage capability makes it versatile for different electrical systems, reducing the need for additional voltage conversion equipment.
3. **TEFC Enclosure (Totally Enclosed Fan-Cooled)** This type of enclosure protects the motor from dust, moisture, and corrosive environments, making it suitable for indoor or mildly dirty outdoor applications.
4. **Standard NEMA Design (B)** The motor follows standard NEMA guidelines, ensuring compatibility with common industrial equipment and control systems.
5. **1750 RPM Speed** This speed is common for many industrial applications, including conveyors, pumps, and compressors, making it a practical choice for general machinery.
6. **Easy Maintenance** As a standard industrial motor, it is designed for straightforward servicing, with accessible bearings and windings.
7. **Good Efficiency** While not the most energy-efficient motor on the market (older models may not meet modern NEMA Premium standards), it provides reliable performance for its class.
8. **Availability of Parts** Since Baldor is a legacy brand, replacement parts and service support are widely available, reducing downtime risks.
9. **Cost-Effective for General Use** For basic applications where high efficiency is not critical, this motor offers a balance of performance and affordability.
10. **Compatibility with VFD (Variable Frequency Drive)** If retrofitted with a VFD, it can be used in applications requiring variable speed control.
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#### **Cons:**1. **Lower Energy Efficiency Compared to Modern Motors** This motor does not meet **NEMA Premium** efficiency standards, meaning it consumes more electricity than newer, high-efficiency models (e.g., IE3 or IE4). For facilities focused on energy savings, this could lead to higher operational costs.
2. **Potential for Higher Noise and Vibration** Older motor designs may produce more noise and vibration compared to modern, precision-engineered motors, which could affect workplace comfort or sensitive equipment.
3. **Limited Warranty** Baldor s standard warranty may not be as extensive as some newer brands (e.g., ABB or Siemens), though this depends on the seller and purchase terms.
4. **Potential for Higher Long-Term Costs** While the upfront cost may be reasonable, inefficiency could result in increased energy bills over time, especially in continuous operation.
5. **Compatibility Issues with Advanced Systems** If the application requires **IE3/IE4 efficiency, IECC compliance, or advanced motor controls**, this older model may not integrate as seamlessly as newer alternatives.
6. **Environmental Regulations** Some regions have phased out or restricted older motor designs due to energy efficiency standards. Using this motor in new installations may violate local regulations.
7. **Limited Customization** Unlike some modern motors, this model may not offer advanced features like built-in sensors, digital diagnostics, or variable speed capabilities without additional modifications.
8. **Potential for Higher Maintenance Over Time** While initially reliable, older motors may require more frequent bearing or winding replacements compared to newer, more robust designs.
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### **Conclusion**
The **Baldor Reliance 1055656 motor** is a **solid, dependable choice for general industrial applications** where cost, availability, and basic performance are priorities. It excels in **durability, dual-voltage flexibility, and ease of maintenance**, making it suitable for **conveyors, pumps, fans, and other standard machinery**.
However, if **energy efficiency, lower operating costs, or compliance with modern standards** are critical, a **higher-efficiency motor (NEMA Premium, IE3, or IE4)** would be a better long-term investment. Additionally, if the application involves **VFD control, high-precision operations, or environmentally sensitive areas**, a newer motor with advanced features may be more appropriate.
For **budget-conscious buyers, legacy system replacements, or non-critical applications**, this motor remains a **practical and reliable option**. For **new installations, energy-efficient operations, or future-proofing**, a more modern motor should be considered.
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### **Recommendation**
- **Buy this motor if:**- You need a **reliable, cost-effective solution** for a **general-purpose application**.
- Your system **cannot accommodate higher-efficiency motors** (e.g., existing wiring or mechanical constraints).
- You prioritize **availability of parts and long-term support** over energy savings.
- The motor will operate in **moderate conditions** (not extreme heat, corrosive environments, or high-dust areas where a **TEFC or explosion-proof motor** would be better).
- **Consider an alternative if:**- **Energy efficiency is a priority** (opt for a **NEMA Premium or IE3/IE4 motor**).
- The motor will run **continuously for long hours** (higher efficiency lower operating costs).
- You plan to **retrofit with a VFD** (a **VFD-rated motor** may be more suitable).
- Your facility is subject to **strict energy regulations** (older motors may not comply).
- You need **lower noise, vibration, or advanced diagnostics** (newer motors offer these features).
**Final Verdict:** This motor is a **good mid-range choice** for many industrial needs but may not be the best long-term investment for efficiency-focused applications. If budget allows, a **modern, high-efficiency motor** would be the smarter purchase for new installations.
Baldor Reliance Super E Motor 3.7 HP 3-Phase 208-230/460V 1750 RPM TEFC.