SPIDER Automation | MY6812 12V 120W Brushed DC Motor | 3350RPM Compact Electric Drive Motor
The MY6812 12V 120W Brushed DC Motor is designed for compact electric drive systems, including electric scooters, electric bicycles, small electric vehicles and robotics projects. Operating from a 12V DC supply, it provides a rated rotational speed of 3350 RPM and a listed rated torque of 4.58kg-cm.
This motor uses a brushed DC configuration and is supplied without an integrated gearbox. Its direct-drive arrangement allows designers to select an external mechanical transmission according to the required output speed and torque. The motor direction can be reversed by changing the polarity of its DC wire connections, providing flexibility during mechanical integration.
With a compact body measuring 120 × 68mm, a listed weight of 1.06kg and a 25cm cable, the MY6812 is suitable for custom electric vehicle builds, robotic mechanisms and other projects requiring a compact 12V brushed motor.
Technical Features & Functional Characteristics
- Brushed DC Motor Design: Uses a brushed motor configuration for conventional 12V DC-powered applications.
- 120W Operating Power: Designed for compact electric drive systems requiring a 120W motor.
- High-Speed Rotation: Provides a listed rated speed of 3350 RPM for compatible rotary drive applications.
- Rated Torque: The listed torque of 4.58kg-cm supports mechanical applications designed around the motor’s specified output.
- No Integrated Gearbox: Supplied without a gearbox, allowing external gearing or transmission components to be selected according to the required application.
- Reversible Rotation: Motor rotation direction can be changed by reversing the polarity of the DC wire connections.
- Compact Construction: Its 120 × 68mm body dimensions support integration into space-conscious mechanical assemblies.
- Connection Cable: Supplied with a 25cm cable for electrical integration.
- Listed Efficiency: The supplier lists an efficiency range of greater than approximately 72–75%.
Motor Configuration & Mechanical Integration
The MY6812 is supplied as a brushed DC motor without an integrated gearbox. The motor provides rotary output at its rated speed, while the external mechanical system determines how that output is transferred to the driven mechanism.
For vehicle and robotics projects, the transmission arrangement should be selected according to the required wheel speed, torque and mechanical load. External gearing, pulleys or other compatible transmission components may be incorporated where appropriate to the design.
- Motor Type: Brushed DC.
- Gearbox Configuration: No integrated gearbox.
- Output Arrangement: Direct motor output for connection to a compatible external transmission.
- Rotation Direction: Reversible by changing DC supply polarity.
Rotation Direction & Speed Control
The motor supports clockwise and counterclockwise operation. Its rotation direction can be changed by reversing the polarity of the two DC motor wire connections. Disconnect the power supply before changing the wiring arrangement.
For variable-speed operation, a compatible brushed DC motor controller can be used. The controller should be selected according to the motor’s 12V rating and actual current requirements, with suitable allowance for starting and load-related current.
Applications
The MY6812 motor can be integrated into compact electric drive and robotics projects where its voltage, power, speed and torque specifications are suitable for the intended mechanical design.
- Electric Scooter Projects: Compact scooter prototypes designed around a compatible 12V brushed motor system.
- Electric Bicycle Projects: Custom electric bicycle drive experiments using a suitable transmission and compatible electrical system.
- Small Electric Vehicles: Drive mechanisms for compact electric carts and custom vehicle prototypes.
- Robotics: Rotary drive systems for mobile robots and custom robotic mechanisms.
- DIY Segway-Style Projects: Experimental self-balancing vehicle mechanisms, subject to suitable motor control and system design.
- Quad and Small Vehicle Prototypes: Compact vehicle projects using compatible motor and transmission arrangements.
- Educational Projects: Demonstrations of brushed DC motor operation, polarity reversal and speed control.
- Custom Mechanical Drives: Rotary drive assemblies requiring a compact 12V motor without an integrated gearbox.
Package Contents
- 1 × MY6812 12V 120W 3350RPM Brushed DC Motor
Product Specifications
| Parameter | Specification |
|---|---|
| Product Type | Brushed DC Motor |
| Model Number | MY6812 |
| Motor Configuration | Brushed DC motor, direct-drive output |
| Operating Voltage | 12V DC |
| Operating Power | 120W |
| Rated Current (Listed) | 7A |
| Rated Speed | 3350 RPM |
| Rated Torque | 4.58kg-cm (approximately 0.45N·m) |
| Gearbox | No integrated gearbox |
| Efficiency | Greater than approximately 72–75% (supplier-listed range) |
| Motor Dimensions (L × D) | 120 × 68mm |
| Motor Weight | 1.06kg |
| Cable Length | 25cm |
| Rotation Direction | Clockwise or counterclockwise by reversing DC supply polarity |
| Speed Control | Compatible external brushed DC motor controller |
| Package Quantity | 1 motor |
Connection & Operating Recommendations
For proper integration, use a suitable 12V DC power system and select the motor controller and mechanical transmission according to the intended operating load. The motor, power source, controller and external drive components should be treated as one coordinated system.
- Use a Suitable 12V DC Supply: Match the supply voltage to the motor’s 12V rating and select a source capable of handling the actual operating and starting current.
- Choose a Compatible Controller: Use a brushed DC motor controller suitable for the motor’s voltage and current requirements. Allow for starting and transient current rather than sizing only from normal running conditions.
- Reverse Polarity Carefully: Change the motor’s rotation direction by reversing the DC wire polarity. Disconnect the supply before altering connections.
- Plan the External Transmission: Since the motor has no integrated gearbox, select suitable gearing or transmission components to achieve the required output speed and torque.
- Secure the Motor Mechanically: Use a rigid mounting arrangement appropriate for the motor body and operating forces. The supplied description does not establish mounting-hole dimensions.
- Check Mechanical Alignment: Keep the motor output and connected transmission components aligned to reduce unwanted vibration and mechanical loading.
- Manage Operating Load: Avoid prolonged stalled or overloaded operation, which can increase current draw and motor temperature.
- Protect the Cable Connections: Route the 25cm motor cable away from moving parts, sharp edges and excessive heat. Use suitable insulated connections and strain relief.
