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Pololu 4820 LP 6V Motor with 48 CPR Encoder for 25D mm Metal Gearmotors - No Gearbox
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SKU: TES-EV00082533
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Pololu 4820 LP 6V Motor with 48 CPR Encoder for 25D mm Metal Gearmotors - No Gearbox
The Pololu 4820 LP is a precision 6V DC motor featuring an integrated 48 counts-per-revolution quadrature encoder, designed for robotics applications requiring accurate position feedback and speed control. Roboticists, autonomous vehicle developers, and embedded systems engineers rely on this motor for real-time motion tracking in differential drive platforms, mobile manipulators, and wheeled navigation systems. This product solves the critical challenge of obtaining reliable odometry data without external sensor integration, enabling closed-loop motor control and precise path planning in autonomous systems.
Product Overview
The Pololu 4820 LP motor combines a high-torque 6V DC motor with a built-in optical quadrature encoder that outputs 48 pulses per complete shaft revolution. The encoder operates on reflective optical sensing principles, detecting encoder disk markings to generate two phase-shifted digital signals (Channel A and Channel B) that enable bidirectional rotation detection and precise speed measurement. The 25D form factor provides a compact yet robust mechanical package suitable for integration into standard robotic platforms, while the motor shaft is optimized for direct coupling to wheels or gearboxes without additional adapters.
This motor variant is supplied without an integrated gearbox, making it ideal for applications requiring direct-drive operation or custom gear reduction integration. The low-power consumption profile and efficient commutation design deliver consistent torque output across the 6V operating range, with encoder resolution sufficient for microcontroller-based feedback control systems. The metal construction ensures durability in field robotics environments, while the standardized mounting footprint facilitates rapid prototyping and system integration with popular robotics platforms and chassis designs.
Key Specifications
| Specification | Details |
| Product Type | DC Motor with Quadrature Encoder |
| 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 |
| Operating Voltage | 6V DC nominal |
| Encoder Resolution | 48 counts per revolution |
| Motor Type | Brushed DC motor with permanent magnet |
| Form Factor | 25D mm metal gearmotor housing |
| Gearbox Configuration | No gearbox - direct motor shaft |
| Encoder Output | Quadrature (Channel A and B) |
Key Features
- Integrated 48 CPR quadrature encoder enabling precise speed measurement and position tracking with 0.75-degree angular resolution per pulse
- Direct-drive motor configuration without gearbox reduction, suitable for applications requiring high-speed operation or custom gear ratio implementation
- Robust metal housing with sealed bearing construction providing mechanical durability and extended operational lifespan in field robotics environments
- Standardized 25D form factor with industry-standard mounting footprint compatible with popular robotics platforms and chassis designs
- Phase-shifted quadrature encoder output enabling bidirectional rotation detection and implementation of advanced motor control algorithms
- Low-noise optical encoder design minimizing electromagnetic interference and ensuring reliable signal integrity in embedded control systems
Applications and Use Cases
- Autonomous mobile robots and wheeled platforms requiring real-time odometry feedback for SLAM algorithms and trajectory planning
- Differential drive robot chassis where encoder feedback from both motors enables precise heading correction and path following control
- Robotic manipulator joint actuation with speed regulation and position monitoring for coordinated multi-axis motion control
- Educational robotics projects and embedded systems coursework implementing closed-loop motor control and sensor integration principles
- Wheeled navigation systems for autonomous delivery platforms and warehouse automation requiring accurate distance measurement and speed feedback
- Line-following and obstacle-avoidance robot implementations where encoder-based velocity feedback enables dynamic speed adjustment
How to Use
To integrate the Pololu 4820 LP motor into your robotics system, first establish mechanical coupling between the motor shaft and your wheel or load using appropriate shaft adapters or direct press-fit installation. Connect the motor power terminals to your 6V power supply through a motor driver module capable of PWM speed control, such as a dual H-bridge driver (L298N, DRV8833, or equivalent). Ensure proper current limiting and reverse-polarity protection at the power supply stage to prevent motor damage.
For encoder signal acquisition, connect the quadrature encoder outputs (Channel A and Channel B) to interrupt-capable GPIO pins on your microcontroller, configured for edge-triggered detection on both rising and falling edges. Implement interrupt service routines to increment or decrement a position counter based on the phase relationship between channels, enabling bidirectional rotation tracking. Configure your motor control algorithm to read encoder counts at regular intervals, calculate velocity by measuring count changes over time, and adjust PWM duty cycle to maintain desired speed setpoints. Typical sampling rates of 10-100 Hz are sufficient for stable closed-loop control in most robotics applications.
Frequently Asked Questions
What is the maximum no-load speed of the Pololu 4820 LP motor at 6V?
The Pololu 4820 LP achieves approximately 300-400 RPM at 6V under no-load conditions, depending on manufacturing tolerances and bearing friction characteristics. Actual speed varies based on supply voltage stability and motor driver efficiency. For precise speed specifications, consult the detailed datasheet available from Pololu's technical documentation portal.
Can I use this motor with a gearbox for increased torque?
Yes, the direct-drive configuration of the 4820 LP allows integration with external gearboxes through shaft coupling adapters. Select a gearbox with matching shaft diameter and mounting footprint, then couple it to the motor shaft using flexible couplings to accommodate minor misalignment. Ensure the gearbox load rating accommodates your application requirements and verify encoder resolution remains adequate after gear reduction.
What microcontroller platforms are compatible with the quadrature encoder output?
The 48 CPR quadrature encoder is compatible with any microcontroller featuring interrupt-capable GPIO pins, including Arduino boards (Uno, Mega, Due), ARM Cortex-M platforms (STM32, SAMD21), Raspberry Pi GPIO, and PIC microcontrollers. Ensure your platform operates at compatible voltage levels (typically 3.3V or 5V logic) and provides sufficient GPIO pins for simultaneous control of multiple motors.
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. Expedited shipping options may be available for urgent requirements - contact our sales team for details.
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, misuse, or modifications to the motor or encoder assembly.
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 tailored to your project requirements and timeline.
Why Buy from The Engineer Store
- Genuine Products: Sourced directly from authorized distributors with authentication certificates and full traceability
- Expert Team: Our technical team validates every product before listing and provides application-specific guidance
- Fast Shipping: Dispatched within 1-5 days from our Bengaluru warehouse with real-time tracking
- Pan-India Delivery: 7-8 days to Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, and Jaipur
- Payment Options: COD, UPI, credit/debit cards, net banking, and EMI available for qualifying orders
- Technical Support: 24/7 expert guidance via email and WhatsApp from robotics and embedded systems specialists
- Returns: 7-day return policy on manufacturing defects with hassle-free replacement or refund processing
Buy Pololu 4820 LP 6V Motor with 48 CPR Encoder for 25D mm Metal Gearmotors - No Gearbox Online in India
Purchase the Pololu 4820 LP 6V Motor with 48 CPR Encoder for 25D mm Metal Gearmotors - No Gearbox online at The Engineer Store, India's trusted source for genuine robotics and embedded systems components. We deliver across Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on Pololu 4820 LP 6V Motor with 48 CPR Encoder for 25D mm Metal Gearmotors - No Gearbox with fast shipping and expert technical support.
Our team in Bengaluru is available 24/7 to support your journey from product selection through project completion, offering application-specific recommendations and troubleshooting assistance for robotics and automation projects.
Pololu 4820 LP 6V Motor with 48 CPR Encoder for 25D mm Metal Gearmotors - No Gearbox
The Pololu 4820 LP is a precision 6V DC motor featuring an integrated 48 counts-per-revolution quadrature encoder, designed for robotics applications requiring accurate position feedback and speed control. Roboticists, autonomous vehicle developers, and embedded systems engineers rely on this motor for real-time motion tracking in differential drive platforms, mobile manipulators, and wheeled navigation systems. This product solves the critical challenge of obtaining reliable odometry data without external sensor integration, enabling closed-loop motor control and precise path planning in autonomous systems.
Product Overview
The Pololu 4820 LP motor combines a high-torque 6V DC motor with a built-in optical quadrature encoder that outputs 48 pulses per complete shaft revolution. The encoder operates on reflective optical sensing principles, detecting encoder disk markings to generate two phase-shifted digital signals (Channel A and Channel B) that enable bidirectional rotation detection and precise speed measurement. The 25D form factor provides a compact yet robust mechanical package suitable for integration into standard robotic platforms, while the motor shaft is optimized for direct coupling to wheels or gearboxes without additional adapters.
This motor variant is supplied without an integrated gearbox, making it ideal for applications requiring direct-drive operation or custom gear reduction integration. The low-power consumption profile and efficient commutation design deliver consistent torque output across the 6V operating range, with encoder resolution sufficient for microcontroller-based feedback control systems. The metal construction ensures durability in field robotics environments, while the standardized mounting footprint facilitates rapid prototyping and system integration with popular robotics platforms and chassis designs.
Key Specifications
| Specification | Details |
| Product Type | DC Motor with Quadrature Encoder |
| 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 |
| Operating Voltage | 6V DC nominal |
| Encoder Resolution | 48 counts per revolution |
| Motor Type | Brushed DC motor with permanent magnet |
| Form Factor | 25D mm metal gearmotor housing |
| Gearbox Configuration | No gearbox - direct motor shaft |
| Encoder Output | Quadrature (Channel A and B) |
Key Features
- Integrated 48 CPR quadrature encoder enabling precise speed measurement and position tracking with 0.75-degree angular resolution per pulse
- Direct-drive motor configuration without gearbox reduction, suitable for applications requiring high-speed operation or custom gear ratio implementation
- Robust metal housing with sealed bearing construction providing mechanical durability and extended operational lifespan in field robotics environments
- Standardized 25D form factor with industry-standard mounting footprint compatible with popular robotics platforms and chassis designs
- Phase-shifted quadrature encoder output enabling bidirectional rotation detection and implementation of advanced motor control algorithms
- Low-noise optical encoder design minimizing electromagnetic interference and ensuring reliable signal integrity in embedded control systems
Applications and Use Cases
- Autonomous mobile robots and wheeled platforms requiring real-time odometry feedback for SLAM algorithms and trajectory planning
- Differential drive robot chassis where encoder feedback from both motors enables precise heading correction and path following control
- Robotic manipulator joint actuation with speed regulation and position monitoring for coordinated multi-axis motion control
- Educational robotics projects and embedded systems coursework implementing closed-loop motor control and sensor integration principles
- Wheeled navigation systems for autonomous delivery platforms and warehouse automation requiring accurate distance measurement and speed feedback
- Line-following and obstacle-avoidance robot implementations where encoder-based velocity feedback enables dynamic speed adjustment
How to Use
To integrate the Pololu 4820 LP motor into your robotics system, first establish mechanical coupling between the motor shaft and your wheel or load using appropriate shaft adapters or direct press-fit installation. Connect the motor power terminals to your 6V power supply through a motor driver module capable of PWM speed control, such as a dual H-bridge driver (L298N, DRV8833, or equivalent). Ensure proper current limiting and reverse-polarity protection at the power supply stage to prevent motor damage.
For encoder signal acquisition, connect the quadrature encoder outputs (Channel A and Channel B) to interrupt-capable GPIO pins on your microcontroller, configured for edge-triggered detection on both rising and falling edges. Implement interrupt service routines to increment or decrement a position counter based on the phase relationship between channels, enabling bidirectional rotation tracking. Configure your motor control algorithm to read encoder counts at regular intervals, calculate velocity by measuring count changes over time, and adjust PWM duty cycle to maintain desired speed setpoints. Typical sampling rates of 10-100 Hz are sufficient for stable closed-loop control in most robotics applications.
Frequently Asked Questions
What is the maximum no-load speed of the Pololu 4820 LP motor at 6V?
The Pololu 4820 LP achieves approximately 300-400 RPM at 6V under no-load conditions, depending on manufacturing tolerances and bearing friction characteristics. Actual speed varies based on supply voltage stability and motor driver efficiency. For precise speed specifications, consult the detailed datasheet available from Pololu's technical documentation portal.
Can I use this motor with a gearbox for increased torque?
Yes, the direct-drive configuration of the 4820 LP allows integration with external gearboxes through shaft coupling adapters. Select a gearbox with matching shaft diameter and mounting footprint, then couple it to the motor shaft using flexible couplings to accommodate minor misalignment. Ensure the gearbox load rating accommodates your application requirements and verify encoder resolution remains adequate after gear reduction.
What microcontroller platforms are compatible with the quadrature encoder output?
The 48 CPR quadrature encoder is compatible with any microcontroller featuring interrupt-capable GPIO pins, including Arduino boards (Uno, Mega, Due), ARM Cortex-M platforms (STM32, SAMD21), Raspberry Pi GPIO, and PIC microcontrollers. Ensure your platform operates at compatible voltage levels (typically 3.3V or 5V logic) and provides sufficient GPIO pins for simultaneous control of multiple motors.
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. Expedited shipping options may be available for urgent requirements - contact our sales team for details.
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, misuse, or modifications to the motor or encoder assembly.
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 tailored to your project requirements and timeline.
Why Buy from The Engineer Store
- Genuine Products: Sourced directly from authorized distributors with authentication certificates and full traceability
- Expert Team: Our technical team validates every product before listing and provides application-specific guidance
- Fast Shipping: Dispatched within 1-5 days from our Bengaluru warehouse with real-time tracking
- Pan-India Delivery: 7-8 days to Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, and Jaipur
- Payment Options: COD, UPI, credit/debit cards, net banking, and EMI available for qualifying orders
- Technical Support: 24/7 expert guidance via email and WhatsApp from robotics and embedded systems specialists
- Returns: 7-day return policy on manufacturing defects with hassle-free replacement or refund processing
Buy Pololu 4820 LP 6V Motor with 48 CPR Encoder for 25D mm Metal Gearmotors - No Gearbox Online in India
Purchase the Pololu 4820 LP 6V Motor with 48 CPR Encoder for 25D mm Metal Gearmotors - No Gearbox online at The Engineer Store, India's trusted source for genuine robotics and embedded systems components. We deliver across Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on Pololu 4820 LP 6V Motor with 48 CPR Encoder for 25D mm Metal Gearmotors - No Gearbox with fast shipping and expert technical support.
Our team in Bengaluru is available 24/7 to support your journey from product selection through project completion, offering application-specific recommendations and troubleshooting assistance for robotics and automation projects.