Pololu 3082/3071/4787/3072/3073/3074/3075/3076/3077/3078/3079/3080 Micro Metal Gearmotor HPCB - 6V With Extended Motor Shaft
Pololu 3082/3071/4787/3072/3073/3074/3075/3076/3077/3078/3079/3080 Micro Metal Gearmotor HPCB - 6V With Extended Motor Shaft
Pololu 3082/3071/4787/3072/3073/3074/3075/3076/3077/3078/3079/3080 Micro Metal Gearmotor HPCB - 6V With Extended Motor Shaft
The Pololu Micro Metal Gearmotor HPCB is a compact, high-performance brushed DC motor with integrated gearbox designed for robotics, automation, and embedded systems requiring precise speed control and high torque output. Roboticists, engineers, and hobbyists use this motor extensively in mobile robots, line-following vehicles, and automated mechanisms where space constraints and power efficiency are critical design parameters. This motor solves the challenge of delivering consistent rotational force in miniaturized applications while maintaining excellent speed regulation across varying load conditions.
Product Overview
The Pololu 3082/3071/4787 series represents a refined approach to micro-scale motion control, combining a brushed DC motor with precision spur gearing to deliver high torque multiplication from a compact form factor. The extended motor shaft variant provides increased flexibility for direct coupling to wheels, pulleys, or custom mechanical assemblies without requiring additional adapters. The HPCB designation indicates high-performance carbon brush construction, ensuring low electrical noise and extended operational lifespan compared to standard brush materials. This motor operates efficiently at 6V nominal voltage, making it compatible with standard battery packs and regulated power supplies commonly used in robotics projects.
The gearbox employs multi-stage spur gear reduction to achieve torque amplification while maintaining smooth, consistent output rotation. The extended shaft extends beyond the motor housing, allowing direct mechanical coupling and eliminating the need for external shaft extensions. The motor features a sealed gearbox design that protects internal components from dust and debris, critical for field robotics applications. The compact cylindrical housing with mounting flange facilitates easy integration into existing mechanical designs and supports rapid prototyping workflows.
Key Specifications
| Specification | Details |
| Product Type | Brushed DC Micro Metal Gearmotor with Extended Shaft |
| Brand | Pololu Robotics and Electronics |
| Origin | Original/Authentic |
| Warranty | 7 days on manufacturing defects |
| Shipping | 1-5 days from Bengaluru |
| Delivery | 7-8 days across India |
| Support | 24/7 via Email and WhatsApp |
| Nominal Voltage | 6V DC |
| Motor Type | Brushed DC with Carbon Brushes (HPCB) |
| Gearbox Type | Spur Gear Reduction |
| Output Shaft Configuration | Extended Motor Shaft Design |
| Housing Material | Plastic with Metal Gears |
Key Features
- Extended motor shaft design enables direct coupling to wheels and mechanical components without additional adapters or couplings
- High-performance carbon brush construction reduces electrical noise and EMI, critical for sensitive robotics applications requiring clean power signals
- Sealed gearbox design protects internal gear mechanisms from environmental contamination, extending operational lifespan in field robotics and outdoor applications
- Compact micro form factor delivers high torque output in minimal space, ideal for weight-sensitive mobile robots and confined mechanical assemblies
- 6V nominal operating voltage provides compatibility with standard lithium-ion battery packs, alkaline batteries, and regulated power supplies
- Precision spur gear reduction provides consistent speed regulation and smooth torque delivery across varying load conditions
Applications and Use Cases
- Mobile robot platforms and wheeled autonomous vehicles requiring reliable, compact drive motors with predictable speed characteristics for navigation algorithms
- Line-following robots and maze-solving platforms where precise motor control and consistent torque output are essential for accurate trajectory tracking
- Robotic arms and articulated mechanisms requiring torque multiplication from compact motors for controlled joint actuation and load handling
- Conveyor systems, automated sorting mechanisms, and industrial automation projects requiring reliable, sealed motor designs resistant to dust and debris
- Educational robotics platforms and STEM projects where space constraints and ease of integration are paramount design considerations
- Prototype development and rapid iteration projects where standardized, well-documented motor components accelerate design cycles
How to Use
Begin by verifying your power supply voltage matches the 6V nominal rating of the motor. Connect the positive terminal of your 6V power source to the red wire and the negative terminal to the black wire. For directional control, reverse the polarity of your power connections. The extended motor shaft is designed for direct coupling to wheels or pulleys; align the shaft with your mechanical load and secure using set screws or press-fit methods appropriate for your assembly design. Ensure the motor is mechanically supported by the mounting flange to prevent lateral stress on the gearbox output shaft.
For speed control applications, implement PWM (Pulse Width Modulation) at frequencies between 5-20 kHz using a motor driver circuit or microcontroller output. The carbon brush design tolerates PWM control well with minimal noise generation. Monitor motor temperature during extended operation; continuous operation at maximum load may generate heat requiring thermal management. For robotics applications, implement current limiting in your motor driver circuit to protect against stall conditions when the motor encounters mechanical resistance. Test the motor under no-load conditions first to verify smooth operation before mounting mechanical loads.
Frequently Asked Questions
What is the difference between the various model numbers in the 3082/3071/4787/3072-3080 series?
The different model numbers within this series represent variations in gear ratio, which determines the speed-to-torque tradeoff. Lower model numbers typically indicate higher speed with lower torque, while higher numbers provide increased torque at reduced output speed. The extended shaft design is consistent across all variants. Consult Pololu's detailed specifications for your specific model number to determine exact RPM and torque characteristics at 6V nominal voltage.
Can I operate this motor at voltages other than 6V?
The motor is rated for 6V nominal operation. Operating at significantly higher voltages will increase current draw and heat generation, potentially damaging the motor or shortening brush lifespan. Operating at lower voltages reduces torque output and speed proportionally. For applications requiring variable voltage operation, implement a regulated power supply that maintains the 6V nominal voltage regardless of input source variation.
How do I control the motor speed and direction?
Direction control is achieved by reversing the polarity of your power connections. Speed control is accomplished using PWM (Pulse Width Modulation) applied to the motor supply through a motor driver circuit. A typical implementation uses an H-bridge motor driver IC controlled by microcontroller PWM outputs, allowing independent speed and direction control. Ensure your motor driver is rated for the current draw of your specific motor model under load conditions.
What is the maximum continuous current draw of this motor?
Current draw varies by gear ratio and load conditions. Consult the detailed specifications for your specific model number. Generally, these micro motors draw between 100mA to 500mA under typical operating conditions at 6V. Under stall conditions, current draw increases significantly; implement current limiting in your driver circuit to prevent damage during mechanical jamming.
Is the extended shaft compatible with standard robot wheels?
The extended shaft design is compatible with most standard robot wheels and pulleys designed for 3mm or 4mm shafts, depending on the specific motor variant. Verify shaft diameter specifications for your motor model before purchasing wheels. Secure the wheel using set screws, press-fit methods, or adhesive appropriate for your mechanical assembly design.
When will I receive my order?
Orders are dispatched within 1-5 business days from our Bengaluru warehouse. Delivery takes 7-8 days to most locations across India.
What is your return and warranty policy?
We offer a 7-day return policy on manufacturing defects only. Contact support within 7 days of receipt for free replacement or full refund. Not applicable for user damage or misuse.
Are bulk discounts available?
Yes, wholesale pricing for orders of 10 or more units. Contact our sales team via WhatsApp or email for a customized bulk quote.
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- Returns: 7-day return policy on manufacturing defects only
Buy Pololu 3082/3071/4787/3072/3073/3074/3075/3076/3077/3078/3079/3080 Micro Metal Gearmotor HPCB - 6V With Extended Motor Shaft Online in India
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