1. Introduction
This manual provides essential information for the safe and efficient use of your CNMAWAY JGB37-520 DC Gear Motor. This high-torque gear motor is available in 12V and 24V variants, offering a range of speeds from 5 RPM to 600 RPM, making it suitable for various applications requiring controlled rotational motion.
For detailed specifications and performance data, please refer to the relevant sections of this manual. A comprehensive PDF user manual is also available for download: View User Manual (PDF).
2. Safety Precautions
Please read and adhere to the following safety guidelines to ensure safe operation and prevent damage to the motor or injury.
- Match the rated voltage/frequency, ensure wiring is firm and reliable, and ground properly. Always perform maintenance with the power off.
- Strictly prevent stalling and overload. Ensure the load does not exceed the rated torque. Avoid frequent starting and stopping.
- Install the motor smoothly and securely, ensuring the axis is aligned and concentric. Do not strike the shaft end or forcefully push it.
- Monitor temperature, noise, and vibration during operation. Immediately cut off power for troubleshooting if abnormal temperature, noise, or jamming occurs.
- Operate the motor in clean and dry environments. Protect it from dust, corrosion, and condensation.
- Add lubricating grease according to specifications. Do not disassemble the motor unless you are a professional. Replace parts with components of the same specifications.
3. Setup and Installation
Proper installation is crucial for the motor's performance and longevity.
3.1 Mounting the Motor
- Ensure the mounting surface is flat and stable.
- Align the motor shaft with the driven component to ensure concentricity.
- Secure the motor using appropriate screws through the mounting holes. Avoid overtightening.
- If using a mounting bracket (as shown in Figure 2), attach the bracket to the motor first, then secure the bracket to your application.
3.2 Dimensional Drawings
Refer to the following diagrams for motor and bracket dimensions (all units in mm).
3.3 Electrical Connection
- Ensure the power supply is off before making any connections.
- Connect the motor terminals to a power supply matching the motor's rated voltage (12V or 24V).
- Ensure connections are firm and reliable. Proper grounding is recommended.
4. Operating Instructions
4.1 Basic Operation
- After ensuring all connections are secure and correct, turn on the power supply.
- The motor will begin to rotate.
- To stop the motor, turn off the power supply.
4.2 Direction Reversal
The JGB37-520 motor supports direction reversal. To change the direction of rotation, reverse the polarity of the DC voltage applied to the motor terminals.
4.3 Speed Adjustment
The motor's speed is adjustable. You can control the rotational speed by varying the input voltage (within the motor's operating voltage range) using a suitable DC motor speed controller or by selecting a motor variant with a different reduction ratio.
4.4 Load Considerations
Avoid exceeding the motor's rated torque and prevent stalling. Continuous stalling or overloading can lead to overheating and permanent damage to the motor. Avoid frequent starting and stopping under heavy loads.
5. Maintenance
Regular maintenance helps prolong the life and performance of your motor.
- **Lubrication**: Add lubricating grease according to the specifications provided in the full user manual or product documentation.
- **Cleaning**: Keep the motor clean and free from dust, debris, and corrosive substances. Operate in dry environments to prevent condensation.
- **Inspection**: Periodically inspect the motor for any signs of wear, damage, or loose connections.
- **Disassembly**: Do not attempt to disassemble the motor unless you are a qualified professional. Improper disassembly can void the warranty and cause irreparable damage.
- **Part Replacement**: If any parts need replacement, ensure they are of the exact same specifications as the original components.
6. Troubleshooting
If you encounter issues with your JGB37-520 motor, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Motor not running or running intermittently | No power, loose connection, incorrect voltage, motor jammed. | Check power supply, verify connections, ensure correct voltage, remove any obstructions. |
| Motor running slowly or with reduced power | Overload, insufficient voltage/current, internal defect. | Reduce load, check power supply voltage and current output. If issue persists, motor may be defective. |
| Excessive noise or vibration | Misalignment, worn gears, foreign objects, loose mounting. | Check alignment, inspect gears for wear, remove foreign objects, tighten mounting screws. Immediately cut off power if severe. |
| Motor overheating | Overload, continuous stalling, insufficient ventilation. | Reduce load, ensure motor is not stalled, provide adequate ventilation. |
If troubleshooting steps do not resolve the issue, contact customer support or a qualified technician.
7. Specifications
7.1 General Specifications
- Product Name: DC Gear Motor
- Brand Name: CNMAWAY
- Model Number: JGB37-520
- Type: Gear Motor
- Construction: Permanent Magnet
- Commutation: Brush
- Protect Feature: Totally Enclosed
- Efficiency: IE 2
- Origin: Mainland China
- Certification: CE
- Voltage(V): 12V, 24V
- Output Power: <18.65W (General), 2W (Specific)
- Product Current: 1A (General)
- Motor Size: 37mm (Diameter) * 52mm (Length)
- Shaft Size: 6mm (Diameter) * 15mm (Length)
- Rotating Speed: 10-1280 RPM (Range, specific RPMs vary by reduction ratio)
- Continuous Use Time: 24 hours continuous operation
- Speed Adjustment: Adjustable speed
- Direction: Can be reversed
- Wireless Functionality: No
- Battery Included: No
- High-concerned chemical: Urethane (Ethyl carbamate) - Warning: This product contains Urethane (Ethyl carbamate), a chemical known to the State of California to cause developmental toxicity and cancer. For more information go to www.P65Warnings.ca.gov
7.2 Performance Characteristics (JGB37-520 DC Geared Motor)
| Reduction Ratio | Gear Box Length (mm) | No-load Speed (RPM) (12V) | Rated Speed (RPM) (12V) | Rated Torque (kgf.cm) (12V) | No-load Speed (RPM) (24V) | Rated Speed (RPM) (24V) | Rated Torque (kgf.cm) (24V) |
|---|---|---|---|---|---|---|---|
| 6.3 | 19 | 960 | 670 | 0.3 | 960 | 670 | 0.3 |
| 10 | 19 | 600 | 420 | 0.5 | 600 | 420 | 0.5 |
| 18.8 | 22 | 320 | 224 | 0.67 | 320 | 224 | 0.67 |
| 30 | 22 | 200 | 140 | 1.5 | 200 | 140 | 1.5 |
| 56 | 24 | 107 | 75 | 2.8 | 107 | 75 | 2.8 |
| 90 | 24 | 66 | 46 | 4.5 | 66 | 46 | 4.5 |
| 131 | 26.5 | 45 | 32 | 6.5 | 45 | 32 | 6.5 |
| 168 | 26.5 | 35 | 25 | 8.4 | 35 | 25 | 8.4 |
| 270 | 29 | 22 | 16 | 13.5 | 22 | 16 | 13.5 |
| 506 | 29 | 12 | 8.5 | 18 | 12 | 8.5 | 18 |
| 810 | 29 | 7 | 5 | 22 | 7 | 5 | 22 |
Note: Locked rotor is allowed instantaneously up to a maximum load of 25 kgf.cm for 12V and 25 kgf.cm for 24V.
7.3 Related Models (B37RG Series)
The B37RG series offers various configurations of geared motors with different voltage, speed, and reduction ratio combinations. Below is a summary of some common variants:
| Model | Rated Voltage | Label Speed | No-load Speed | Motor Speed (rpm) | Reduction Ratio |
|---|---|---|---|---|---|
| B37RG981i | 12V | 2.5R | 2.5R | 2500 | 981:1 |
| B37RG516i | 12V | 10R | 11R | 5500 | 516:1 |
| B37RG148i | 12V | 30R | 33R | 5000 | 148:1 |
| B37RG57.7i | 12V | 60R | 62R | 3500 | 57.7:1 |
| B37RG31i | 12V | 150R | 160R | 5000 | 31:1 |
| B37RG981i | 24V | 2.5R | 2.5R | 2500 | 981:1 |
| B37RG314i | 24V | 10R | 11R | 3500 | 314:1 |
| B37RG148i | 24V | 30R | 33R | 5000 | 148:1 |
| B37RG57.7i | 24V | 87R | 87R | 5000 | 57.7:1 |
| B37RG31i | 24V | 150R | 160R | 5000 | 31:1 |
8. User Tips
- This motor is well-suited for various DIY projects and hobby applications, such as aquarium filter rollers.
- The motor is reported to be sturdy and well-built, providing reliable performance.
- While rated for 12V or 24V, some users have found it to operate effectively from 5V onwards, offering flexibility for different power sources.
- For applications involving heavy or continuous loads, consider reinforcing the motor's bearing or shaft to prevent potential breakage over time.
- Remember that for geared motors, lower RPM settings generally correspond to higher torque output.
9. Warranty and Support
For warranty information, technical support, or service inquiries, please refer to the seller's official website or contact their customer service department. Keep your purchase receipt for any warranty claims.