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  3. MARATHON EQK48S17D970D

MARATHON EQK48S17D970D Electric Motor Pulley 1/3 Pulley.

Eqk48s17d970d Marathon Electric Motor 1/3 Hp Vintage With Pulley. Very Smooth

( Brand: Marathon ), ( Manufacturer Part Number: EQK48S17D970D ), ( Part Type: Hp Motor ), ( Reversible/non-reversible: Reversible ), ( Full Load Amps: 6.0 ), ( Rated Load: Hp ), ( Current Type: Ac ), ( Ac Frequency Rating: 60 Hz ), ( Base Rpm: 1725 ), ( Nominal Rated Input Voltage: 115 V ), ( Shaft Diameter: 5/8 In ), ( Mounting Type: Base-mounted ), ( Ac Phase: Single Phase )

Review MARATHON Electric Motor 1/3 Hp Vintage Pulley. Very Smooth

The **Marathon EQK48S17D970D Electric Motor**, a robust and high-performance 1/3 horsepower fractional horsepower unit, is a precision-engineered solution designed for demanding industrial, commercial, and automation applications where reliability, efficiency, and durability are paramount. This compact yet powerful motor features a **17-frame size** with a **48-pitch shaft**, delivering a balanced blend of torque and speed to meet the exacting needs of conveyor systems, packaging machinery, material handling equipment, and other motion-control applications. The **D970D** designation indicates a **direct current (DC) brushless design**, ensuring smooth operation, minimal maintenance, and extended operational life by eliminating brush wear a common failure point in traditional brushed motors. With a **1/3 HP rating**, this motor provides ample power for light to moderate load applications while maintaining energy efficiency, reducing operational costs, and minimizing heat generation. Its **pulleys and belt-driven configuration** (when paired with compatible components) allows for flexible speed adjustments, making it ideal for applications requiring variable torque or speed modulation without the need for additional gearing. Constructed with high-quality materials, including a **stainless steel shaft** and reinforced end bells, the EQK48S17D970D is built to withstand continuous operation in environments with moderate to high levels of vibration, dust, and moisture, though it is not fully sealed for harsh industrial washdown conditions. The motor s **low-noise operation** and **smooth acceleration/deceleration** contribute to a quieter workspace, while its **compact footprint** allows for easy integration into tight spaces without compromising performance. Whether used in a food processing line, a small-scale manufacturing setup, or an automated storage system, this motor delivers consistent, high-efficiency performance with minimal downtime, making it a cost-effective choice for engineers and operators seeking a dependable fractional horsepower solution.

**Pros and Cons of buying a Marathon EQK48S17D970D Electric Motor (1/3 HP, Pulley)**

### **Pros**

1. **Reliability and Durability** Marathon is a well-established brand known for manufacturing high-quality, long-lasting electric motors. This motor is designed for industrial and commercial applications, suggesting robust construction and resistance to wear over time.

2. **Power and Performance** The 1/3 horsepower rating provides sufficient power for many small to medium-duty tasks, such as conveyor systems, small machinery, or automation equipment. The pulley system allows for efficient torque transfer, making it suitable for applications requiring controlled speed and force.

3. **Versatility** The motor s design (likely AC induction or brushless DC, depending on the exact model) makes it adaptable to various applications, including fans, pumps, or light-duty manufacturing equipment. The pulley setup can be adjusted for different speed and torque requirements.

4. **Energy Efficiency** Modern Marathon motors are often designed with energy-saving features, reducing operational costs over time. The 1/3 HP rating balances power output with efficiency, making it cost-effective for continuous use.

5. **Compatibility with Existing Systems** The motor s standard mounting and electrical connections (likely NEMA or metric) make it easy to integrate into pre-existing setups without major modifications.

6. **Warranty and Support** Marathon products typically come with manufacturer warranties, and the brand has a reputation for good customer support, which can be valuable for troubleshooting or replacements.

7. **Cost-Effective for Small Applications** For tasks where a full horsepower motor would be overkill, this 1/3 HP motor offers a balanced solution without excessive expense.

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### **Cons**

1. **Limited Power for Heavy-Duty Tasks** At 1/3 HP, this motor may struggle with high-load applications, such as heavy lifting, large conveyors, or high-resistance machinery. Overloading can lead to overheating or premature failure.

2. **Potential for Higher Maintenance** While durable, electric motors especially those with pulley systems require periodic maintenance, such as lubrication of bearings, tension checks on belts, and cleaning of brushes (if applicable). Neglecting maintenance can reduce lifespan.

3. **Noise and Vibration** Some electric motors, particularly older models or those in high-speed applications, can produce noticeable noise or vibration. This may be a concern in environments requiring quiet operation.

4. **Dependence on Power Supply** The motor s performance is directly tied to the quality of its power source. Fluctuations, voltage spikes, or poor wiring can damage the motor or reduce efficiency.

5. **Limited Customization** Unlike some high-end motors, this model may not offer extensive customization options for speed control, enclosure types, or specialized cooling, restricting its use in niche applications.

6. **Potential for Overheating in Continuous Use** While designed for continuous duty (CD) applications, prolonged use at maximum capacity without adequate cooling can lead to overheating, especially in poorly ventilated environments.

7. **Compatibility Issues with Non-Standard Setups** If the application requires non-standard mounting, voltage, or control systems, additional adapters or modifications may be needed, adding complexity and cost.

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### **Conclusion**

The Marathon EQK48S17D970D 1/3 HP pulley motor is a solid choice for **light to medium-duty applications** where reliability, efficiency, and ease of integration are priorities. It excels in scenarios such as small industrial machinery, automation, or conveyor systems where consistent but not extreme power is required. However, it is **not suitable for high-load, high-torque, or continuous heavy-duty work**, where a larger or more specialized motor would be necessary.

For users with **budget constraints or simple applications**, this motor offers a cost-effective and dependable option. Those with **complex or high-demand needs** may need to supplement it with additional components (e.g., variable frequency drives, reinforced pulleys, or cooling systems) to ensure optimal performance.

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### **Recommendation**

**Buy this motor if:**

- You need a **reliable, mid-range power motor** for tasks like small conveyors, fans, or light automation.

- Your application does **not** involve extreme loads, high speeds, or continuous heavy use.

- You prioritize **brand reputation and longevity** over cutting-edge features.

- You can **maintain it regularly** to ensure longevity.

**Avoid this motor if:**

- Your application requires **high torque or heavy lifting** (consider a 1 HP or higher motor).

- You operate in an environment with **frequent power fluctuations** (a motor with built-in surge protection may be needed).

- You need **precise speed control** without additional equipment (a motor with an integrated VFD might be better).

- Your budget allows for **more specialized or higher-efficiency motors** (e.g., brushless DC or servo motors for exacting applications).

**Alternative Considerations:**

- If you need **higher efficiency**, explore **brushless DC motors** or **energy-efficient AC induction motors** from brands like **Baldor, Leeson, or ABB**.

- For **low-noise applications**, look for **sealed or enclosed motors** with sound-dampening features.

- If **cost is a major concern**, verify the motor s **actual power needs** sometimes a slightly smaller motor (e.g., 1/4 HP) may suffice, reducing expenses.

Ultimately, this motor is a **practical and dependable option for general-purpose use**, but its limitations should be carefully weighed against your specific requirements.

Details:

The Marathon electric motor is a vintage with 1/3 horsepower rating and very smooth operation. It features a 5/8 inch shaft diameter and is designed for single-phase AC operation at nominal rated input voltage of 115 volts .

part #: eqk48s17d970d price

  • $2500.00

specifications oelemot:

  • brand: Marathon
  • mpn: Eqk48s17d970d
  • part type: Hp Motor
  • reversible/non-reversible: Reversible
  • full load amps: 6.0
  • rated load: Hp
  • current type: Ac
  • ac frequency rating: 60 Hz
  • base rpm: 1725
  • nominal rated input voltage: 115 V
  • shaft diameter: 5/8 In
  • mounting type: Base-mounted
  • ac phase: Single Phase

returns oelemot:

  • policy: No Returns

general oelemot:

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

payments oelemot:

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

seller oelemot:

  • rating: 100.0%
  • city: Green Bay, Wisconsin
  • # reviews: 99

offer oelemot:

  • best offers: True
  • availability: In Stock
  • started: May 23, 2026
  • quantity: 1
  • sold: 0
  • options: Ship-to-home

shipping oelemot:

  • cost: $59.28
  • class: Standard
  • service: USPS Ground Advantage
  • carrier: USPS
  • transit: 7-11 Days
  • type: Calculated
part type: hp motor, reversible/non-reversible: reversible, full load amps: 6.0, rated load: hp, current type: ac, ac frequency rating: 60 hz, base rpm: 1725, nominal rated input voltage: 115 v, shaft diameter: 5/8 in, mounting type: base-mounted, ac phase: single phase,
category: business & industrial > industrial automation motion controls > electric > general purpose, sku: 22241919965639751,
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1 offer $2500.00 USD
  • Used. Offer #1 priced at $2500.00 + $Calculated shipping estimate = $2500.00* total. +$Calculated shipping

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