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  3. DANFOSS 55034938.3039914

DANFOSS 55034938.3039914 Roller Stator Hydraulic Motor 11203773 400-30020

55034938.3039914 Danfoss Roller Stator Hydraulic Motor 11203773 400-30020

( Brand: Danfoss ), ( Manufacturer Part Number: 55034938.3039914 ), ( Part Type: Roller Hydraulic Stator Motor )

Review DANFOSS Roller Stator Hydraulic Motor

The **Danfoss 55034938.3039914 Roller Stator Hydraulic Motor**, identified under the part numbers **11203773** and **400-30020**, represents a high-performance, precision-engineered component designed for demanding hydraulic applications where reliability, efficiency, and durability are paramount. This motor belongs to Danfoss s renowned line of **roller-stator (gerotor) hydraulic motors**, which are celebrated for their compact yet robust construction, delivering smooth and consistent rotational power with minimal leakage and wear. The design leverages a **positive displacement principle**, where an internal gear (rotor) meshes with an eccentric stator to convert hydraulic fluid pressure into precise mechanical motion, making it ideal for applications requiring controlled torque and speed, such as industrial machinery, mobile hydraulics, and specialized automation systems.

Crafted with **high-grade materials**, including hardened steel components and corrosion-resistant coatings, this motor is engineered to withstand extreme operating conditions, including high-pressure environments (typically rated for pressures up to **350 bar or higher**, depending on the system configuration) and continuous operation under heavy loads. The **roller-stator mechanism** ensures a near-seal between the rotor and stator, reducing internal leakage and enhancing volumetric efficiency, which translates to superior energy conservation and extended operational lifespan. The motor s **compact footprint** allows for easy integration into tight spaces, while its **modular design** facilitates straightforward maintenance and replacement of wear parts, such as the rotor, stator, and roller assembly, without compromising the overall system s performance.

One of the standout features of this Danfoss motor is its **adjustable displacement capability**, which can be fine-tuned to match specific application requirements, optimizing flow rates and speed outputs. This flexibility makes it a versatile choice for a wide range of hydraulic systems, from **construction equipment and agricultural machinery** to **marine propulsion and industrial automation**. The motor s **low-noise operation** and smooth power delivery are further enhanced by Danfoss s proprietary **fluid dynamics technology**, which minimizes pulsation and vibration, contributing to quieter and more stable system performance. Additionally, the motor s **sealed housing** and **robust shaft design** provide protection against contamination and ensure reliable operation even in harsh, dust-laden, or wet environments.

For applications demanding **high torque at low speeds** or **precise speed control**, the Danfoss 55034938.3039914 excels due to its **direct-drive capability** and **minimal backlash**, making it a preferred choice for applications such as **winches, cranes, and hydraulic actuators** where accuracy and responsiveness are critical. The motor s **compatibility with a broad range of hydraulic fluids**, including mineral oils, synthetic fluids, and biodegradable options, ensures broad applicability across different industrial sectors. Furthermore, Danfoss s reputation for **innovative engineering and rigorous quality control** guarantees that each unit undergoes stringent testing to meet or exceed international standards for performance, safety, and longevity.

In summary, the **Danfoss 55034938.3039914 Roller Stator Hydraulic Motor** is a testament to Danfoss s commitment to excellence in hydraulic power solutions, offering a harmonious blend of **precision engineering, durability, and adaptability**. Whether deployed in **heavy-duty industrial settings, mobile hydraulics, or precision automation**, this motor delivers **reliable, efficient, and high-performance power conversion**, making it an indispensable component for engineers and operators seeking a dependable solution in their hydraulic systems.

### **Pros and Cons of buying a Danfoss 55034938.3039914 Roller Stator Hydraulic Motor (Part Numbers: 11203773, 400-30020)**

#### **Pros:**

1. **High Reliability and Durability** Danfoss is a well-known brand in hydraulic components, known for producing robust, long-lasting motors. The roller stator design is particularly durable for heavy-duty applications, reducing wear and tear over time.

2. **Precision Engineering** This motor is designed for high-performance applications, offering consistent torque and speed control. The roller stator mechanism provides smooth operation with minimal leakage, improving efficiency.

3. **Wide Compatibility** The part numbers (11203773, 400-30020) suggest it is designed for industrial machinery, agricultural equipment, or mobile hydraulics. It is likely compatible with systems requiring precise hydraulic power, such as excavators, cranes, or conveyor systems.

4. **Energy Efficiency** Roller stator motors are generally more efficient than traditional gear or piston motors due to their design, which reduces internal losses and improves overall system performance.

5. **Ease of Maintenance** Danfoss components are designed with serviceability in mind. The motor can be disassembled and serviced relatively easily, allowing for extended operational life with proper upkeep.

6. **Aftermarket Support** Danfoss has a strong global network of distributors and service centers, making it easier to find replacement parts, technical support, or repairs if needed.

7. **Long Service Life** Given its robust construction, this motor is likely to outlast many standard hydraulic motors, reducing downtime and replacement costs over time.

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#### **Cons:**

1. **High Initial Cost** Danfoss hydraulic motors are premium products, and this specific model may be more expensive than generic or aftermarket alternatives. The cost could be a significant upfront investment, especially for smaller businesses or DIY projects.

2. **Specialized Knowledge Required** Installing and maintaining a high-performance hydraulic motor like this one may require specialized training. Improper installation or servicing could lead to premature failure or safety hazards.

3. **Potential for Overkill** If the application does not require the full capacity of this motor (e.g., low-torque, low-pressure systems), the motor may be unnecessarily powerful, leading to inefficiencies or higher operational costs.

4. **Limited Availability of Generic Alternatives** Unlike some hydraulic components, finding a direct replacement from a non-OEM supplier may be difficult. This could limit flexibility if budget constraints arise.

5. **Weight and Space Considerations** High-performance hydraulic motors are often heavier and bulkier than standard models. This may require modifications to the existing system to accommodate the motor, adding to installation complexity and cost.

6. **Potential for Misapplication** If the motor is not correctly matched to the system s pressure, flow rate, or load requirements, it could lead to inefficiencies, overheating, or damage. Proper system analysis is essential before purchase.

7. **Depreciation** While Danfoss motors are durable, like all machinery, they will eventually wear out. The resale value may not fully recoup the initial investment, especially for older models.

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### **Conclusion:**

The Danfoss 55034938.3039914 roller stator hydraulic motor is a high-quality, reliable choice for demanding hydraulic applications where precision, durability, and efficiency are critical. Its strengths lie in its engineering, longevity, and brand reputation, making it ideal for industrial, agricultural, or heavy-duty mobile equipment. However, the higher cost, specialized requirements, and potential overkill for less demanding applications must be carefully considered.

For applications where reliability and performance are non-negotiable such as in construction, mining, or manufacturing this motor is an excellent investment. For smaller-scale or less critical applications, a cost-effective alternative might be more suitable.

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### **Recommendation:** - **Buy if:**

- You are working on a high-demand hydraulic system where reliability and efficiency are paramount.

- You have the budget to invest in a premium component that will last for years with minimal maintenance.

- Your application requires precise torque and speed control, such as in heavy machinery or industrial automation.

- You have access to proper installation and maintenance support (or are willing to invest in training).

- **Consider alternatives if:**

- Your application does not require the full capacity of this motor, and a lower-cost, lower-performance model would suffice.

- Budget constraints make the upfront cost prohibitive, and you are open to exploring aftermarket or generic options (though compatibility should be verified).

- You lack the expertise to install or service the motor properly, as improper handling could void warranties or cause damage.

- **Additional Tips:**

- Always verify compatibility with your existing hydraulic system, including pressure, flow rate, and shaft specifications.

- Consult with a Danfoss-certified technician or distributor to ensure proper sizing and application.

- If possible, purchase from an authorized dealer to guarantee authenticity and warranty coverage.

- Keep records of installation and maintenance to maximize the motor s lifespan.

Details:

Money Back or Exchange. 30 Day Return Period. Condition: New. UPS FedEx Next Day 2nd Day Air Available Inquire for pricing.

Worldwide shipping available on most items Inquire for pricing. What you are buying on: Danfoss Roller Stator Hydraulic Motor 5 914, 11203773, 400-30020.

part #: 550349383039914 prices

  • $206.80-$575.00

specifications hydraulimoto:

  • brand: Danfoss
  • mpn: 55034938.3039914
  • part type: Roller Hydraulic Stator Motor

general hydraulimoto:

  • Business Industrial > Hydraulics, Pneumatics, Pumps Plumbing > Hydraulic Pneumatic Motors
  • condition: New

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offer hydraulimoto:

  • started: February 10, 2026
  • sold: 0
  • options: Ship-to-home
  • quantity: 1
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seller hydraulimoto:

  • rating: 99.6%
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  • city: Draper, Utah
part type: roller hydraulic stator motor,
category: business & industrial > hydraulics, pneumatics, pumps plumbing > hydraulic pneumatic, sku: 7612859548824633,
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