12V 200 RPM Johnson Geared DC Motor
The 12V 200 RPM Johnson Geared DC Motor is a reliable and powerful motor for your robotics and DIY projects. It provides 200 RPM speed and 56.1 N-cm torque. The motor has a 30mm long main shaft with a hole for easy connection and a back shaft that works with encoders for speed and position feedback.
This motor runs on 12V (with a range from 6V to 18V) and offers more torque than standard motors, making it perfect for projects that need strength and precision.
Features
- High-quality branded Johnson DC motor.
- Sturdy construction for durability.
- Rear shaft for easy encoder mounting.
- Shaft equipped with metal bushes for long life.
- High-quality gears for smooth operation.
- Shaft includes a hole for better coupling.
Applications
- Small Robotics
- Automated Conveyor or Belt Systems
- Servo-type Mechanisms
- Home Automation
- Educational / STEM Projects
12 V Johnson Geared DC Motor – 100 RPM vs 200 RPM
| Feature |
100 RPM Motor |
200 RPM Motor |
| No‑Load Speed @12 V |
~100 RPM :contentReference[oaicite:2]{index=2} |
~200 RPM :contentReference[oaicite:3]{index=3} |
| Rated Voltage |
12 V DC :contentReference[oaicite:4]{index=4} |
12 V DC :contentReference[oaicite:5]{index=5} |
| Rated Torque (approx) |
~10–12 kg‑cm at 100 RPM (Grade A) :contentReference[oaicite:6]{index=6} |
~6–8 kg‑cm at 200 RPM :contentReference[oaicite:7]{index=7} |
| Stall Torque / Loads |
Stall ~20–30 kg‑cm (varies) :contentReference[oaicite:8]{index=8} |
Stall ~15–16 kg‑cm (varies) :contentReference[oaicite:9]{index=9} |
| Speed vs Torque Trade‑off |
Lower speed → higher torque headroom → better for heavy loads or slow motion applications |
Higher speed → moderate torque → suitable for faster rotation but lighter loading |
| Typical Use Case |
Actuators, robotics arms, slow rotation, high‑load applications |
Conveyor belts, wheels with moderate speed, general purpose motion where speed matters a bit more |
| Considerations |
If used where speed matters you may need gear reduction; also higher torque requires robust mounting and structure |
May not have as much torque headroom for heavy loads; ensure motor not overloaded and gearbox supports higher speed operations |
12V Johnson Geared DC Motor – Troubleshooting Tips
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Motor Not Spinning: Check power supply voltage, wiring connections, and battery charge.
-
Low or Erratic Speed: Inspect for mechanical friction, loose gears, or debris in the gearbox.
-
Excessive Heat: Ensure motor is not overloaded or stalled; give it rest periods and check rated torque limits.
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Unusual Noise or Grinding: Check gear alignment, lubricate gears if needed, and ensure no foreign particles inside gearbox.
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Motor Stops Intermittently: Inspect for loose wires, poor solder joints, or intermittent power supply.
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Reduced Torque: Confirm motor is operating within rated voltage and not overloaded; check for worn gears or shaft misalignment.
Package Includes
1 x 12V 200 RPM Johnson Geared DC Motor
Specifications
| Item Type |
Johnson Geared DC Motor |
| Rated Speed (RPM) |
200 |
| Rated Torque (N-cm) |
56.1 |
| Base Motor Rated RPM |
18000 |
| Gear Ratio |
3.750694444 |
| Gear Material |
Metal |
| Dimension (LxHxW) |
6cmx3.5cmx2cm |
| Weight |
260gm |
1. How to connect a Johnson DC Geared Motor to a power supply?
Use a regulated 12V DC power supply and connect the positive and negative terminals to match the motor’s leads. This ensures the Johnson DC Geared Motor operates safely within its rated voltage and prevents overheating. Avoid using unregulated adapters to maintain stable performance of the 12 V DC gear motor 200 rpm.
2. How to control the speed of a 200 RPM DC motor?
Use a PWM motor driver or a microcontroller like Arduino to adjust the duty cycle and vary the average voltage supplied to the motor. This allows precise control over the 200 RPM DC motor speed without affecting torque or causing thermal stress. Always ensure the driver can handle the motor’s current draw for reliable operation.
3. How to reverse the rotation of a Johnson DC Geared Motor?
Swap the polarity of the power connections—connect the positive lead to the negative terminal and vice versa. This reverses the direction of the Johnson DC Geared Motor without damaging internal gears or electronics. Confirm the shaft rotates as expected before integrating it into your mechanical system.
4. How to mount the 12V 200 RPM Johnson Geared DC Motor?
Secure the 12V 200 RPM Johnson Geared DC Motor using compatible mounting brackets or screws that fit its housing. Align the motor shaft precisely with the driven gear or pulley to minimize mechanical strain. Proper mounting prevents vibration and wear, ensuring smooth and efficient operation of the dc geared Johnson motor.
5. How to increase torque output of a Johnson DC Geared Motor?
While the Johnson DC Geared Motor already provides high torque at 200 rpm, you can further increase output by adding an external gear reduction stage. This lowers speed while multiplying torque, ideal for heavy-load applications. Avoid stalling the motor, as prolonged overloading can damage the gearbox or windings.
6. How to wire multiple DC motors in a project?
Power each 12 V DC gear motor 200 rpm through separate channels of a motor driver to prevent current imbalance and voltage drops. Use a shared, high-current 12V DC supply with adequate amperage for all motors. Isolate control signals to avoid interference and ensure synchronized or independent operation as needed.
7. How to maintain a 12V 200 RPM Johnson Geared DC Motor?
Keep the Johnson DC Geared Motor clean from dust, debris, and moisture that can affect performance. Periodically check for unusual noise or resistance, which may indicate the need for lubrication or inspection. Avoid continuous operation under excessive load to extend the life of your dc geared Johnson motor.
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