{"product_id":"pololu-4823-1583-metal-gearmotor-25d-mm-lp-6v-20-4-1-gear-ratio","title":"Pololu 4823 \/ 1583  Metal Gearmotor 25D mm LP 6V - 20.4:1 Gear ratio","description":"\u003cmeta name=\"description\" content=\"Buy Pololu 4823 \/ 1583 Metal Gearmotor 25D mm LP 6V - 20.4:1 Gear ratio online in India at best price from The Tech Depot, Bengaluru. Authentic product, 7-day warranty on manufacturing defects, fast delivery across India.\"\u003e\n\n\u003ch1\u003ePololu 4823 \/ 1583 Metal Gearmotor 25D mm LP 6V - 20.4:1 Gear ratio\u003c\/h1\u003e\n\n\u003cp\u003eThe Pololu 4823 Metal Gearmotor is a compact 25D mm low-power DC motor with integrated metal gearbox delivering a 20.4:1 reduction ratio, engineered for precision robotics and automation applications requiring controlled torque and speed. Professional roboticists, embedded systems engineers, and industrial automation technicians rely on this motor for mobile robot platforms, wheeled vehicle propulsion, conveyor systems, and precision mechanical assemblies where compact form factor meets reliable performance. This gearmotor solves the critical challenge of balancing motor speed reduction with minimal backlash and mechanical efficiency in space-constrained designs.\u003c\/p\u003e\n\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\n\u003cp\u003eThe Pololu 4823 is a brushed DC gearmotor combining a high-speed motor with a precision metal gear train to deliver optimized torque output at reduced speeds. Operating at 6V nominal voltage, this motor achieves approximately 300 RPM output shaft speed with the 20.4:1 gear ratio, making it ideal for direct-drive wheel applications in robotics without requiring additional speed reduction stages. The metal gearbox construction ensures superior durability compared to plastic alternatives, with hardened steel gears minimizing wear and extending operational lifespan in continuous-duty applications. The compact 25D millimeter diameter housing integrates seamlessly into mobile robot chassis designs while maintaining adequate power density for demanding mechanical loads.\u003c\/p\u003e\n\n\u003cp\u003eThis gearmotor features low mechanical backlash typical of quality metal gear assemblies, critical for precise positioning applications and smooth motion control in autonomous systems. The 6V rated voltage provides excellent compatibility with standard lithium polymer battery packs, lead-acid batteries, and regulated power supplies commonly used in robotics platforms. The motor shaft features a D-shaped profile compatible with standard Pololu wheel hubs and coupling mechanisms, enabling rapid mechanical integration without custom machining. Thermal management is optimized through natural convection cooling of the metal housing, allowing sustained operation under moderate duty cycles without thermal shutdown concerns.\u003c\/p\u003e\n\n\u003ch2\u003eKey Specifications\u003c\/h2\u003e\n\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eSpecification\u003c\/td\u003e\n\u003ctd\u003eDetails\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eMetal Gearmotor with Integrated Reduction Gearbox\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003ePololu Robotics and Electronics\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOrigin\u003c\/td\u003e\n\u003ctd\u003eOriginal\/Authentic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e7 days on manufacturing defects\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping\u003c\/td\u003e\n\u003ctd\u003e1-5 days from Bengaluru\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDelivery\u003c\/td\u003e\n\u003ctd\u003e7-8 days across India\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupport\u003c\/td\u003e\n\u003ctd\u003e24\/7 via Email and WhatsApp\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Voltage\u003c\/td\u003e\n\u003ctd\u003e6V DC nominal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGear Ratio\u003c\/td\u003e\n\u003ctd\u003e20.4:1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Shaft Speed\u003c\/td\u003e\n\u003ctd\u003eApproximately 300 RPM at 6V no-load\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor Diameter\u003c\/td\u003e\n\u003ctd\u003e25 millimeters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShaft Type\u003c\/td\u003e\n\u003ctd\u003eD-shaped profile compatible with standard Pololu hubs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGearbox Material\u003c\/td\u003e\n\u003ctd\u003eMetal construction with hardened steel gears\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eMetal Gearbox Construction: Hardened steel gears deliver superior durability and minimal backlash compared to plastic gear assemblies, ensuring precise motion control and extended service life in continuous-duty robotics applications\u003c\/li\u003e\n\u003cli\u003eOptimized Gear Ratio: 20.4:1 reduction provides ideal balance between torque multiplication and output speed for direct-drive wheel applications in mobile robots without additional mechanical stages\u003c\/li\u003e\n\u003cli\u003eCompact 25D Form Factor: Space-efficient cylindrical housing integrates seamlessly into standard robot chassis designs while maintaining adequate power density for demanding mechanical loads\u003c\/li\u003e\n\u003cli\u003e6V DC Compatibility: Rated voltage provides excellent compatibility with standard lithium polymer battery packs, lead-acid batteries, and regulated power supplies commonly deployed in robotics platforms\u003c\/li\u003e\n\u003cli\u003eD-Shaped Shaft Profile: Motor shaft features standard D-profile geometry compatible with Pololu wheel hubs and coupling mechanisms, enabling rapid mechanical integration without custom machining\u003c\/li\u003e\n\u003cli\u003eLow Mechanical Backlash: Precision metal gear assembly minimizes rotational play critical for smooth motion control and accurate positioning in autonomous systems and mechanical assemblies\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eMobile Robot Propulsion: Direct-drive wheel motor for differential-drive and omnidirectional mobile robots requiring controlled acceleration, smooth velocity profiles, and reliable torque delivery across varied terrain\u003c\/li\u003e\n\u003cli\u003eAutonomous Vehicle Development: Primary motor for small-scale autonomous ground vehicles, line-following robots, and obstacle-avoidance platforms in educational and research robotics programs\u003c\/li\u003e\n\u003cli\u003ePrecision Mechanical Assemblies: Gearmotor for conveyor systems, robotic arm joint actuation, and automated machinery requiring low-speed high-torque output with minimal mechanical backlash\u003c\/li\u003e\n\u003cli\u003eEmbedded Control Systems: Motor platform for motion control education, embedded systems projects, and real-time control algorithm development with direct microcontroller integration via H-bridge drivers\u003c\/li\u003e\n\u003cli\u003eIndustrial Automation Equipment: Component for small-scale manufacturing automation, material handling systems, and precision positioning mechanisms in laboratory and production environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eHow to Use\u003c\/h2\u003e\n\n\u003cp\u003eThe Pololu 4823 gearmotor integrates directly into robot chassis designs through the D-shaped output shaft, which accepts standard Pololu wheel hubs secured with a set screw. Mount the motor housing to your chassis frame using the integrated mounting brackets or custom aluminum mounts designed for the 25D form factor. Electrical connections require only two wires connected to an H-bridge motor driver circuit controlled by your microcontroller, typically an Arduino or similar embedded platform. Apply 6V DC across the motor terminals with correct polarity to achieve forward rotation; reversing polarity reverses direction. Current draw varies with mechanical load but typically ranges from 100mA at no-load to 2-3 amps under stalled conditions, requiring appropriately rated power supplies and motor drivers with adequate current capacity.\u003c\/p\u003e\n\n\u003cp\u003eFor optimal performance, implement closed-loop speed control using encoder feedback or load-based current monitoring to maintain consistent velocity across varying terrain and battery voltage conditions. The motor generates back-EMF proportional to shaft speed, enabling speed estimation through voltage measurement across a series resistor in the motor circuit. Thermal management is passive through the metal housing; monitor current draw during extended operation and implement duty-cycle control if sustained high-current operation exceeds thermal limits. Mechanical maintenance is minimal due to sealed metal gearbox construction, but periodic inspection of the D-shaft and hub connection ensures secure coupling and prevents slippage during high-torque maneuvers.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the stalled torque output of the Pololu 4823 gearmotor?\u003c\/summary\u003e\n\u003cp\u003eThe stalled torque at 6V nominal voltage is approximately 1.6 kg-cm or 0.16 Newton-meters. This represents maximum torque available when the output shaft is mechanically locked and rated voltage is applied. Actual usable torque in dynamic applications depends on motor driver current capacity and mechanical load characteristics. For mobile robot wheel drives, typical operating torque is 30-50 percent of stalled value to maintain reasonable acceleration and velocity profiles.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eCan I operate the Pololu 4823 at voltages higher than 6V?\u003c\/summary\u003e\n\u003cp\u003eOperation above 6V nominal voltage is not recommended as it will exceed motor winding current ratings and reduce motor lifespan through accelerated thermal stress. However, brief operation at 7-8V is tolerable for short duration applications if current is limited through appropriate motor driver settings. For higher voltage applications, Pololu manufactures equivalent motors rated for 12V and 18V operation. Operating below 6V reduces output torque proportionally but is acceptable for reduced-power applications requiring extended runtime from battery sources.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat type of motor driver circuit is required for the Pololu 4823?\u003c\/summary\u003e\n\u003cp\u003eA dual-channel H-bridge motor driver rated for minimum 2-3 amps continuous current is required for bidirectional speed control. Popular options include the Pololu VNH5019 dual motor driver, DRV8835 dual motor driver, or equivalent L298N modules. Ensure the motor driver supports PWM input for speed control and includes current limiting protection. Connect motor driver outputs directly to the two motor terminals, with microcontroller GPIO pins controlling direction and PWM pins controlling speed via duty-cycle modulation.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eIs encoder feedback available for the Pololu 4823?\u003c\/summary\u003e\n\u003cp\u003eThe base Pololu 4823 motor does not include integrated encoder feedback. However, Pololu manufactures compatible magnetic encoder modules that mount to the motor shaft end, providing quadrature output signals for precise speed and position measurement. Alternatively, wheel rotation can be estimated through back-EMF voltage measurement or external wheel-mounted optical encoders for mobile robot odometry applications.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhen will I receive my order?\u003c\/summary\u003e\n\u003cp\u003eOrders are dispatched within 1-5 business days from our Bengaluru warehouse. Delivery takes 7-8 days to most locations across India.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat is your return and warranty policy?\u003c\/summary\u003e\n\u003cp\u003eWe 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.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eAre bulk discounts available?\u003c\/summary\u003e\n\u003cp\u003eYes, wholesale pricing for orders of 10 or more units. Contact our sales team via WhatsApp or email for a customized bulk quote.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003ch2\u003eWhy Buy from The Tech Depot\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003eGenuine Products: Sourced directly from authorized distributors with authentication\u003c\/li\u003e\n\u003cli\u003eExpert Team: Our technical team validates every product before listing\u003c\/li\u003e\n\u003cli\u003eFast Shipping: Dispatched within 1-5 days from our Bengaluru warehouse\u003c\/li\u003e\n\u003cli\u003ePan-India Delivery: 7-8 days to Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata\u003c\/li\u003e\n\u003cli\u003ePayment Options: COD, UPI, credit\/debit cards, net banking, EMI available\u003c\/li\u003e\n\u003cli\u003eTechnical Support: 24\/7 expert guidance via email and WhatsApp\u003c\/li\u003e\n\u003cli\u003eReturns: 7-day return policy on manufacturing defects only\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eBuy Pololu 4823 \/ 1583 Metal Gearmotor 25D mm LP 6V - 20.4:1 Gear ratio Online in India\u003c\/h2\u003e\n\n\u003cp\u003ePurchase the Pololu 4823 \/ 1583 Metal Gearmotor 25D mm LP 6V - 20.4:1 Gear ratio online at The Tech Depot, India's trusted source for genuine electronics. We deliver across Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on Pololu 4823 \/ 1583 Metal Gearmotor 25D mm LP 6V - 20.4:1 Gear ratio with fast shipping and expert support.\u003c\/p\u003e\n\n\u003cp\u003eOur team in Bengaluru is available 24\/7 to support your journey from product selection to project completion.\u003c\/p\u003e","brand":"The Tech Depot","offers":[{"title":"Default Title","offer_id":48743639941377,"sku":"TTD-8278","price":2473.09,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/1577\/3185\/files\/7a62cf99225fe781760d643cdeb80030.jpg?v=1778060808","url":"https:\/\/techdepot.in\/products\/pololu-4823-1583-metal-gearmotor-25d-mm-lp-6v-20-4-1-gear-ratio","provider":"Tech Depot India","version":"1.0","type":"link"}