12V 10 RPM Johnson Geared DC Motor – Grade B

The 12V 10 RPM Johnson Geared DC Motor is a robust and reliable power source for your mechanical projects that require high torque at a low rotational speed. Unlike standard DC motors, this motor includes a built-in metal gearbox, which efficiently converts the high speed of the motor’s armature into a slow, powerful output at the shaft. This specific Grade B motor is a cost-effective alternative for hobbyists and students who need consistent performance without the premium price tag of a brand-new, A-grade component. It’s an excellent choice for applications like robotics, automation, and custom mechanical systems where precise, slow-moving force is essential.

Key Features:

• High Torque Output: The integrated gearbox provides a significant torque boost, allowing the motor to drive heavy loads or lift objects with ease.
• Low Rotational Speed: With a stable output of 10 RPM, this motor is perfect for applications that demand slow, controlled movement.
• Durable Metal Gearbox: The all-metal gears are built to withstand considerable stress and provide long-lasting, reliable performance.
• Reversible Direction: You can easily change the motor’s direction of rotation by simply reversing the polarity of the power supply.
• Versatile Power: Operates on a standard 12V DC power supply, making it compatible with a wide range of battery packs and power adapters.

Technical Specifications:

• Motor Type: Geared DC Motor
• Operating Voltage: 12V DC
• No-Load Speed: 10 RPM
• Rated Torque: Approximately 10 kg-cm
• Shaft Diameter: 6 mm with a D-cut
• No-Load Current: ~150 mA
• Stall Current: ~1.8 A

Mechanical Specifications:

• Gearbox Type: Spur gear
• Gearbox Material: Metal
• Mounting: Standard mounting holes on the gearbox faceplate.
• Shaft: Durable metal shaft with a flat section for secure attachment of wheels or gears.

Dimensions:

• Motor Diameter: ~37 mm
• Total Length (including shaft): ~75 mm
• Shaft Length: ~20 mm
• Mounting Hole Distance (diagonal): ~30 mm

Pinout and Wiring:

• Power Terminals: Two solder tabs or terminals are located at the back of the motor.
• Positive (+) / Negative (-): Connect the positive terminal of your 12V power supply to one terminal and the negative to the other.
• Wiring Note: To reverse the motor’s rotation, simply swap the polarity of your power connections. You can control this with a DPDT switch or a motor driver like an L298N.

Datasheet Reference:

• Download Datasheet

Commonly Used in:

• Robotics: Drive the wheels of a mobile robot or operate a robotic arm with precision.
• Home Automation: Power automated blinds, curtains, or small linear actuators.
• Educational Kits: A staple component in university and high school robotics and engineering courses.

Applications:

• Automated Gimbals or Turntables: Create slow, smooth rotations for cameras or displays.
• Miniature Conveyor Belts: Move items slowly and steadily in a small-scale system.
• DIY Mechanisms: Ideal for custom gear trains, winch systems, or any project that needs powerful, slow motion.

Equivalent Models:

• BO Motor: A much smaller and lower-torque geared motor for simpler projects.
• Stepper Motor: Offers more precise, step-by-step control but is generally more complex to wire and program.

Package Includes:

• 1 x 12V 10 RPM Johnson Geared DC Motor