12V 300 RPM Johnson Geared DC Motor – Grade B

12V 300 RPM Johnson Geared DC Motor, rated as Grade B, offers a powerful and reliable solution for projects requiring high torque at a controlled speed. This motor combines a robust DC motor with an integrated metal gearbox, ensuring a durable and long-lasting performance. The gear reduction significantly increases the output torque while reducing the final shaft speed to a manageable 300 RPM. Engineers and hobbyists often choose this motor for its impressive performance-to-size ratio and its ability to handle demanding mechanical loads. It’s a go-to component for robotics, automation, and various mechanical DIY projects where precise movement and strength are essential.

Key Features:

• High Torque Output: The integrated gearbox provides a substantial increase in torque, allowing the motor to handle heavy loads with ease.
• Controlled Speed: The reduction ratio of the gearbox provides a stable output speed of 300 RPM, perfect for applications requiring consistent motion.
• Durable Construction: Built with a metal gearbox, this motor is designed to withstand significant mechanical stress and provide a long operational life.
• 12V Operation: The motor is compatible with common 12V power sources, including batteries and power adapters, making it easy to power in a variety of setups.
• Bi-directional Rotation: You can easily control the motor’s direction by simply reversing the polarity of the input voltage.
• Grade B Designation: This motor is categorized as Grade B, meaning it is an economical choice for projects where minor cosmetic imperfections are acceptable, without compromising on functionality.

Technical Specifications:

• Motor Type: Geared DC Motor
• Rated Voltage: 12V DC
• Rated RPM: 300 RPM
• No-load Current: ~150 mA
• Load Current: Up to 1.5A
• Gearbox: metal gearbox

Mechanical Specifications:

• Shaft Type: D-cut shaft
• Shaft Diameter: 6 mm
• Shaft Length: ~25 mm
• Mounting Holes: Two M3 mounting holes on the face of the gearbox for secure installation.
• Body Material: Steel motor casing with metal gearbox.

Dimensions:

• Body Length (Motor + Gearbox): ~75 mm
• Body Diameter: 36 mm
• Shaft Length: 25 mm
• Total Length (Including Shaft): ~100 mm

Pinout and Wiring:

• Motor Terminals (+ / -): Two solder tabs or wires for power input.
• Wiring Note: Connect the positive (+) lead of your 12V power supply to one terminal and the negative (-) lead to the other to make the motor spin in one direction. Reverse the polarity to make the motor spin in the opposite direction. You can use a motor driver (like the L298N) for easy control.

Datasheet Reference:

• Download Datasheet (Generic)

Commonly Used in:

• Robotics: Powering wheels for mobile robots and robotic arms.
• DIY Projects: Building custom machinery, automation systems, and mechanical prototypes.
• Educational Kits: Used in advanced robotics kits and engineering projects.

Applications:

• Conveyor Belts: Drive small conveyor systems for sorting or assembly line projects.
• Pan and Tilt Systems: Use for precise camera positioning or sensor movement.
• Actuators: Create simple linear actuators or custom mechanical linkages.

Equivalent Models:

• BO Motor: A much smaller, lower-torque geared motor often used in simple robot car kits.
• Higher RPM Geared Motors: Similar models available with different gear ratios to achieve higher speeds and lower torque.

Package Includes:

• 1 x 12V 300 RPM Johnson Geared DC Motor