
( Brand: Faulhaber ), ( Manufacturer Part Number: 2842S ), ( Type: Motor ), ( Age Level: 17 Years Up )
The **FAULHABER 2842S 12V DC Motor with Dual Shafts** is a high-performance, precision-engineered electric motor designed for demanding applications where compact size, exceptional reliability, and superior torque output are critical. Part of Faulhaber s renowned 28 series, this motor combines cutting-edge brushless DC (BLDC) technology with a robust, lightweight construction, making it an ideal choice for aerospace, robotics, medical devices, industrial automation, and high-precision motion control systems. With a nominal voltage of 12V, the 2842S delivers a peak torque of up to **0.025 Nm (25 mNm)** while maintaining a remarkably low rotational inertia, ensuring rapid acceleration and deceleration for dynamic applications. Its dual-output shafts one with a **4 mm diameter** and the other with a **2 mm diameter** provide versatility in mounting and coupling configurations, allowing engineers to optimize mechanical integration for specific designs without compromising performance. The motor s compact footprint, measuring just **28 mm in diameter and 42 mm in length**, enables seamless integration into space-constrained systems, while its high-efficiency winding and rare-earth magnet assembly minimizes energy consumption and heat dissipation, enhancing operational longevity.
Built to exacting standards, the 2842S features a **closed-loop control capability**, making it compatible with advanced motion controllers for precise speed, position, and torque regulation. Its sealed construction ensures protection against dust, moisture, and contaminants, making it suitable for both cleanroom and harsh-environment applications. The motor s brushless design eliminates mechanical wear from commutators and brushes, reducing maintenance requirements and extending operational lifespan under continuous use. Additionally, the 2842S is equipped with a **high-precision encoder** (typically a 2048 or 4096 CPR incremental encoder), enabling real-time feedback for closed-loop systems, which is essential for applications requiring sub-micron positioning accuracy. Whether deployed in a miniature drone, a surgical robot, or an automated assembly line, this motor exemplifies Faulhaber s commitment to delivering uncompromising performance in the most challenging motion control scenarios. Its combination of torque density, efficiency, and reliability positions it as a cornerstone for next-generation precision engineering.
### Pros and Cons of buying a Faulhaber 2842S 12-Volt Dual-Shaft Motor
#### **Pros:**The Faulhaber 2842S 12-volt dual-shaft motor is a high-performance precision motor often used in applications requiring compact size, high torque, and reliability. Here are its key advantages:
1. **High Torque and Efficiency** The motor delivers strong torque at low speeds, making it suitable for applications requiring precise control, such as robotics, automation, and medical devices. Its brushless design ensures energy efficiency and long-term reliability.
2. **Dual-Shaft Output** The dual-shaft configuration allows for independent control of two output axes, simplifying mechanical design in systems where two motions must be synchronized or controlled separately (e.g., robotic grippers, camera stabilization, or optical systems).
3. **Compact and Lightweight** The small form factor (28mm diameter) makes it ideal for space-constrained applications where larger motors would be impractical. This is particularly useful in portable or embedded systems.
4. **High Precision and Low Noise** Faulhaber motors are known for their smooth operation, minimal vibration, and low noise levels, which are critical in applications requiring high positional accuracy (e.g., CNC machines, laboratory equipment, or aerospace components).
5. **Wide Voltage Range Compatibility** While specified for 12V operation, many Faulhaber motors can operate over a broader voltage range (e.g., 6V 24V), providing flexibility in power supply integration.
6. **Long Lifespan and Durability** The use of high-quality materials and sealed bearings reduces wear and extends the motor s operational life, even under continuous use. This is beneficial for industrial or mission-critical applications.
7. **Compatibility with Advanced Control Systems** Faulhaber motors are often paired with their own controllers (e.g., the MICROMO or FAULHABER drive systems), which offer features like closed-loop feedback, PID tuning, and digital communication (e.g., CAN, RS-485). This makes them easy to integrate into modern control architectures.
8. **Customization Options** Faulhaber offers a range of customization options, including gear ratios, shaft configurations, and mounting styles, allowing engineers to tailor the motor to specific application needs.
9. **Reliability in Harsh Environments** The motor s robust construction and IP-rated enclosures (depending on the model) make it suitable for applications exposed to dust, moisture, or temperature variations.
10. **Global Support and Documentation** Faulhaber provides extensive technical documentation, application notes, and customer support, which can be invaluable for troubleshooting or optimizing performance.
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#### **Cons:** While the Faulhaber 2842S is a high-quality motor, it also comes with some limitations that may affect its suitability for certain applications:1. **High Cost** Faulhaber motors are premium products, and the 2842S is no exception. The price can be significantly higher than that of off-the-shelf or generic brushless DC motors, especially when paired with controllers or additional accessories. This may not be justified for low-budget or low-volume projects.
2. **Limited Power Output** At 12V, the 2842S is not designed for high-power applications. Its power output is relatively modest (typically in the range of a few watts), which may restrict its use in heavy-duty or high-speed applications without gearing or additional amplification.
3. **Complex Integration** While Faulhaber motors are highly customizable, integrating them into a system can be more complex than using simpler motors. This includes the need for compatible controllers, drivers, and possibly additional sensors (e.g., encoders) for closed-loop operation. This complexity may require specialized knowledge or additional development time.
4. **Dependence on Proprietary Components** Faulhaber s ecosystem of controllers and accessories is proprietary, which can limit flexibility if you re working with non-Faulhaber systems. While they offer compatibility with common communication protocols, switching to alternative brands may require re-engineering.
5. **Stock and Lead Times** As a specialized manufacturer, Faulhaber may have longer lead times for custom or non-standard orders compared to mass-produced motors. This could delay project timelines if parts are not readily available.
6. **Sensitivity to Overloading** Like many high-precision motors, the 2842S can be damaged by excessive torque or overheating if not properly sized or controlled. This requires careful consideration of load requirements and thermal management in the design phase.
7. **Limited Off-the-Shelf Availability** Unlike more common motors (e.g., from Maxon or standard brushless DC motors), the 2842S may not be as widely stocked by distributors. This could complicate procurement for smaller manufacturers or hobbyists.
8. **Learning Curve for Optimization** Achieving optimal performance often requires tuning parameters such as current limits, PID gains, or gear ratios. This may necessitate additional testing and iteration, which can be time-consuming for inexperienced users.
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### **Conclusion:**The Faulhaber 2842S 12-volt dual-shaft motor is an excellent choice for applications demanding **high precision, compact size, and reliable dual-axis control**. Its strengths lie in its efficiency, low noise, and compatibility with advanced control systems, making it ideal for robotics, automation, medical devices, and other precision-driven fields. However, its **high cost, limited power output, and complexity of integration** may make it less suitable for budget-conscious or high-power applications.
If your project requires **minimal vibration, independent dual-shaft motion, or long-term reliability** in a small form factor, the Faulhaber 2842S is a strong recommendation. Conversely, if **cost, simplicity, or high power** are prioritized, alternatives such as Maxon, brushless DC motors with external controllers, or stepper motors might be more appropriate.
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### **Recommendation:** - **Buy the Faulhaber 2842S if:**- You need **dual-shaft synchronization** in a compact space.
- Your application demands **high precision, low noise, and long-term reliability** (e.g., robotic grippers, camera stabilization, or laboratory equipment).
- You are willing to invest in **high-quality components** and have access to compatible controllers (e.g., Faulhaber s MICROMO drives).
- Thermal management and load requirements are carefully considered to avoid overheating or mechanical stress.
- **Consider alternatives if:**- Your budget is constrained, and you can achieve similar performance with a lower-cost motor (e.g., Maxon RE series or a brushless DC motor with an encoder).
- Your application requires **higher power output** or **simpler integration** (e.g., stepper motors or geared DC motors).
- You lack experience with **closed-loop control systems** and prefer off-the-shelf solutions.
For most **high-end robotics, automation, or medical applications**, the Faulhaber 2842S is a justified investment. For other projects, weigh the trade-offs carefully against your specific requirements.
Condition may vary due to age and wear. These may or not have wires attached. Type of shaft is dual standard. See photo for details.
Shaft Diameter: 0.186 4.72mm 12-Volt 10800-RPM Manufacturer: Faulhaber. This motor has been tested. Variation: Used. Train Product Id: 12800762.
We'll do our absolute best to make you happy. Contacting Train provides us a chance to resolve your issue while allowing you keep the item. Model Number: 2842S. Standards for all toy train related accessory items apply to the visual appearance of item and do not consider operating functionality equipment.
Approximate dimensions are: 28mm OD X motor 42mm Motor length . Operational Status: Functional This part is in workable condition. Economy Shipping.