12V 500 RPM Johnson Geared DC Motor – Grade B

The 12V 500 RPM Johnson Geared DC Motor is a robust and reliable power source for a wide array of robotic and mechatronic projects. This particular model, designated as “Grade B,” delivers a practical blend of speed and torque, making it a staple for engineers, students, and hobbyists. The integrated metal gearbox effectively reduces the motor’s high-speed rotation to a more manageable 500 RPM, while significantly increasing its output torque. This gearing allows the motor to drive wheels, lift loads, or power mechanisms that require both controlled speed and substantial force. Whether you’re building a mobile robot, an automated gate, or a custom conveyor system, this motor provides the consistent performance you need to get the job done.

Key Features:

• Integrated Metal Gearbox: The all-metal gearbox ensures high durability and efficient power transmission, allowing the motor to handle heavy loads without damage.
• Balanced Speed and Torque: With a no-load speed of 500 RPM, it strikes an optimal balance, providing enough speed for locomotion while offering a high torque output for heavy-duty tasks.
• Wide Voltage Range: Operates efficiently on a 12V DC power supply, making it compatible with standard battery packs and power sources.
• Robust Construction: Built to withstand demanding applications, its sturdy design and high-quality components ensure a long operational lifespan.
• Easy to Mount: Features standard mounting holes on the gearbox face for a simple and secure installation.

Technical Specifications:

• Operating Voltage: 12V DC
• No-Load Speed: 500 RPM
• No-Load Current: 300 mA
• Rated Torque: 4.5 Kg-cm
• Stall Torque: 18 Kg-cm
• Stall Current: 2.2 A
• Gearbox Type: Spur Gear
• Shaft Diameter: 6 mm with D-cut

Mechanical Specifications:

• Motor Type: Brushed DC Motor
• Gearbox Material: Metal
• Body Material: Metal
• Shaft Type: D-shaped for better grip with wheel hubs and couplers.

Dimensions:

• Motor Body Length: ~40 mm
• Gearbox Length: ~25 mm
• Total Length (excluding shaft): ~65 mm
• Shaft Length: 22 mm
• Diameter: ~37 mm

Pinout and Wiring:

• Red Wire: Positive (+) terminal
• Black Wire: Negative (-) terminal
• Wiring Note: Simply connect the red wire to your 12V power source’s positive terminal and the black wire to the negative. To reverse the motor’s rotation, switch the polarity of the connections. You should use a motor driver to control the direction and speed.

Datasheet Reference:

• Download Datasheet (Similar)

Commonly Used in:

• Robotics Competitions: A go-to motor for robot platforms in events like the Robocon and line-following challenges.
• Educational Kits: Integrated into various STEM education kits to teach principles of mechanics and electronics.
• Industrial Prototypes: Used for creating proof-of-concept models for automation and machinery.

Applications:

• Mobile Robots: Ideal for driving the wheels of two-wheel or four-wheel drive robot chassis.
• Automated Systems: Powering small conveyor belts, automatic doors, or smart blinds.
• DIY Projects: Suitable for a wide range of hobby projects that need a high-torque motor, such as pan/tilt camera mounts or gear-driven mechanisms.

Equivalent Models:

• BO Motor: A more budget-friendly and lower-torque alternative, often used in simpler projects.
• N20 Gear Motor: A smaller and lighter geared motor for micro-robotics and compact devices.

Package Includes:

• 1 x 12V 500 RPM Johnson Geared DC Motor