HURST 990535 Da Hysteresis Synchronous Gear Motor Rpm 24V 60CY 5W

( Brand: Hurst ), ( Manufacturer Part Number: 990535 ), ( Part Type: 24v Gear Motor ), ( Reversible/non-reversible: Reversible ), ( Current Type: Ac ), ( Ac Frequency Rating: 60 Hz ), ( Base Rpm: 4 Rpm ), ( Nominal Rated Input Voltage: 115 V ), ( Ac Motor Type: Synchronous ), ( Ac Phase: Single Phase ), ( Country Of Origin: United States )

Review HURST Pc Da 24v Hysteresis Synchronous Gear Motor 5w Rpm

The **Hurst 990535 DA 24V Hysteresis Synchronous Gear Motor (60 Cycle, 5 W RPM)** is a precision-engineered, high-performance electric actuator designed for applications requiring smooth, silent, and highly accurate motion control. This compact yet robust motor combines the efficiency of a hysteresis synchronous design with the reliability of a DC gear reduction system, making it an ideal choice for automation, industrial machinery, medical equipment, and robotics where torque consistency and low maintenance are critical. Operating at a nominal voltage of **24V DC**, this motor delivers a seamless blend of torque and speed control, with its hysteresis rotor ensuring minimal power loss and superior positional stability eliminating the need for brushes or commutators that traditional DC motors often require. The **60-cycle** designation indicates compatibility with standard North American electrical frequencies, ensuring seamless integration into existing control systems without the need for additional conversion hardware.

At the heart of this motor lies a **gear reduction system** that optimizes torque output while maintaining high efficiency, allowing it to handle precise, low-speed applications with ease. With a **5 W (watt) power rating**, it strikes an excellent balance between performance and energy consumption, making it suitable for applications where power draw must be carefully managed, such as in battery-operated devices or systems with limited electrical capacity. The synchronous nature of the motor ensures that the rotor aligns perfectly with the stator s magnetic field at all times, resulting in **zero cogging** and **minimal vibration**, which translates to smoother operation and extended component lifespan. This characteristic is particularly advantageous in applications where noise reduction and precision are paramount, such as in laboratory equipment, CNC machines, or automated assembly lines.

The **DA (Direct Attach)** designation indicates that this motor is designed for direct coupling to a load or shaft without the need for additional adapters, simplifying installation and reducing potential sources of mechanical inefficiency. Its compact yet sturdy construction allows for easy integration into tight spaces, making it versatile for both original equipment manufacturing (OEM) applications and aftermarket upgrades. The motor s **60-cycle compatibility** ensures that it operates reliably within standard industrial environments, while its hysteresis rotor design contributes to **low heat generation**, reducing the need for cooling systems and further enhancing its efficiency. Whether used in a **medical device** requiring precise, silent actuation or an **industrial conveyor system** demanding consistent torque, this motor delivers dependable performance with minimal maintenance making it a cost-effective solution for a wide range of motion control challenges.

For engineers and designers seeking a motor that prioritizes **reliability, precision, and energy efficiency**, the Hurst 990535 DA 24V Hysteresis Synchronous Gear Motor stands out as a well-engineered solution. Its combination of **synchronous motion control, low-power operation, and robust gear reduction** ensures that it meets the demands of modern automation while maintaining a small footprint and long-term durability. Whether in a research laboratory, manufacturing facility, or automated system, this motor provides the quiet, consistent, and efficient performance needed to drive critical applications forward.

### **Pros and Cons of buying a Hurst 990535 DA 24V Hysteresis Synchronous Gear Motor (60 Cycles, 5W, RPM)**

1. **High Efficiency and Precision** Hysteresis synchronous motors are known for their smooth, quiet operation and minimal power loss due to their synchronous nature. This motor likely delivers consistent torque and speed without the need for brushes or complex commutation, reducing wear and maintenance.

2. **Low Maintenance** Since hysteresis motors lack brushes or slip rings, they require less upkeep compared to brushed DC or AC induction motors. This can extend the motor s lifespan and reduce downtime.

3. **Compact and Lightweight Design** The gearmotor is likely designed for applications where space is limited, making it suitable for integration into small machinery, robotics, or automated systems.

4. **Reliable for Low-Speed, High-Torque Applications** With a gear reduction (implied by the "gear motor" designation), it can provide higher torque at lower speeds, which is useful for precise positioning or controlled movement in devices like valves, pumps, or conveyor systems.

5. **24V DC Operation** A 24V motor is safer for human interaction (lower voltage than many industrial motors) and easier to integrate into systems with standard DC power supplies. It also allows for simpler control with PWM or variable voltage drivers.

6. **Suitable for Automation and Control Systems** The synchronous nature of the motor makes it well-suited for closed-loop control, where precise speed and position feedback are required (e.g., with encoders or tachometers).

7. **Long Lifespan** Hysteresis motors are generally robust and can operate for extended periods without significant degradation, provided they are within their rated specifications.

8. **Quiet Operation** The absence of brushes and the synchronous design typically result in lower noise levels compared to brushed motors or induction motors with mechanical commutation.

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1. **Limited Power Output** At just **5W**, this motor is very low-power. It may not be suitable for heavy-duty applications requiring significant torque or continuous high-speed operation. For example, it would struggle with tasks like lifting heavy loads, driving large pumps, or powering high-inertia systems.

2. **Potential for High Cost Relative to Output** High-efficiency, low-maintenance motors like hysteresis synchronous types can be more expensive upfront compared to simpler brushed DC motors or basic AC induction motors, especially when considering the gear reduction and precision engineering.

3. **Gear Train Limitations** The included gear reduction (likely a planetary or helical gear set) may introduce mechanical inefficiencies, such as backlash or wear over time. If the application requires ultra-high precision, the gearing could introduce small positional errors.

4. **Voltage Sensitivity** A 24V motor may require precise voltage regulation to avoid overheating or underperformance. Fluctuations in power supply could affect speed or torque consistency.

5. **Limited Availability of Spare Parts** As a specialized motor, finding replacement parts or technical support may be difficult compared to more common motor types (e.g., NEMA-sized brushed DC motors).

6. **Not Ideal for High-Speed Applications** While the motor itself may run at high RPM, the gear reduction will significantly lower the output speed. If the application requires high rotational speed at the output shaft, this motor may not be suitable without additional gearing.

7. **Potential for Overheating in Continuous Operation** At 5W, the motor may struggle with sustained high-load conditions, leading to overheating if not properly cooled or if the load exceeds its capacity.

8. **Control Complexity** Synchronous motors often require more sophisticated control circuits (e.g., for field orientation in AC variants or precise speed regulation in DC variants). If the application lacks a dedicated controller, additional electronics may be needed.

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The **Hurst 990535 DA 24V hysteresis synchronous gear motor** is a well-suited choice for **low-power, precision-driven applications** where smooth operation, reliability, and minimal maintenance are priorities. It excels in **automation, robotics, small-scale machinery, or control systems** that require consistent torque and speed without brush wear. However, its **low power output (5W)** severely limits its use in heavy-duty or high-torque applications. If the intended application involves **light loads, precise positioning, or quiet operation**, this motor is a strong candidate. For **higher power demands, continuous heavy loads, or high-speed requirements**, a more robust motor (e.g., a brushed DC motor, servo motor, or AC induction motor with higher wattage) would be a better fit.

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- You need a **low-maintenance, quiet, and precise** motor for applications like **small actuators, automated valves, conveyor systems, or hobbyist robotics**.

- Your application involves **light loads (e.g., moving small objects, adjusting positions with minimal force)**.

- You require **24V DC compatibility** and can integrate it with a control system (e.g., Arduino, PLC, or dedicated speed controller).

- You require **higher torque or power output** (e.g., for lifting, pumping, or driving mechanical loads beyond a few watts).

- Your application demands **high-speed operation** at the output shaft (gear reduction will limit this).

- You need **off-the-shelf availability and easy spare parts access** (specialized motors may require custom sourcing).

- Cost is a major concern, as higher-performance alternatives may offer better value for more demanding tasks.

For most **general-purpose or industrial applications**, a **brushed DC gearmotor (e.g., 12V 48V, 10W 100W range)** or a **servo motor** would be more versatile. However, if your project specifically calls for the **efficiency, quietness, and low-maintenance benefits** of a hysteresis synchronous motor, this unit is a solid choice for its intended niche.

Details:

See photos for details.

part #: 990535 prices

• $30.00-$220.00

specifications oelemot:

• brand: Hurst
• mpn: 990535
• part type: 24v Gear Motor
• reversible/non-reversible: Reversible
• current type: Ac
• ac frequency rating: 60 Hz
• base rpm: 4 Rpm
• nominal rated input voltage: 115 V
• ac motor type: Synchronous
• ac phase: Single Phase
• country of origin: United States

offer oelemot:

• quantity: 1
• started: March 3, 2026
• sold: 0
• availability: In Stock
• options: Ship-to-home

shipping oelemot:

• transit: 3-7 Days
• carrier: USPS
• class: Standard
• service: USPS Ground Advantage
• cost: $15.00
• type: Fixed

payments oelemot:

• wallet: Apple-pay
• other
• credit card: Diners-club

returns oelemot:

• policy: No Returns

seller oelemot:

• # reviews: 5187
• city: Albany, Oregon
• rating: 100.0%

general oelemot:

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

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