{"product_id":"pololu-3450-3451-3452-3453-3454-3455-3456-3457-3458-3459-3460-3461-metal-gearmotor-20dx41l-mm-6v","title":"Pololu 3450\/3451\/3452\/3453\/3454\/3455\/3456\/3457\/3458\/3459\/3460\/3461 Metal Gearmotor 20Dx41L mm 6V","description":"\u003cmeta name=\"description\" content=\"Buy Pololu 3450\/3451\/3452\/3453\/3454\/3455\/3456\/3457\/3458\/3459\/3460\/3461 Metal Gearmotor 20Dx41L mm 6V 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 3450\/3451\/3452\/3453\/3454\/3455\/3456\/3457\/3458\/3459\/3460\/3461 Metal Gearmotor 20Dx41L mm 6V\u003c\/h1\u003e\n\n\u003cp\u003eThe Pololu Metal Gearmotor 20Dx41L mm 6V is a compact, high-torque brushed DC motor with integrated metal gearbox, designed for robotics, automation, and embedded systems requiring precise speed and torque control. Professional engineers and hobbyists use this motor series in mobile robots, wheeled platforms, and mechanical automation projects where space constraints and reliability are critical. This product solves the challenge of integrating motor and gearbox separately by providing a compact, pre-assembled solution with multiple gear ratio options across the 3450-3461 series, enabling designers to select the exact torque-speed characteristics needed for their application.\u003c\/p\u003e\n\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\n\u003cp\u003eThe Pololu 3450-3461 Metal Gearmotor series features a precision-engineered brushed DC motor coupled with a metal spur gear transmission system. The motor operates at 6V nominal voltage and delivers consistent torque output through helical or spur gears depending on the specific model variant. The metal gear construction ensures durability and low backlash compared to plastic alternatives, making these motors ideal for applications requiring accurate positioning and repeated mechanical stress. The compact 20mm diameter housing with 41mm length allows integration into space-constrained robotic platforms while maintaining sufficient torque delivery for wheel drive systems and mechanical linkages.\u003c\/p\u003e\n\n\u003cp\u003eEach model in the 3450-3461 range offers different gear ratios, allowing selection from low-speed high-torque variants to higher-speed lower-torque configurations. The sealed motor design provides protection against dust and minor moisture exposure, extending operational life in field conditions. Integrated output shafts feature standard diameters compatible with common coupling systems, wheels, and mechanical components used in robotics. The brushed DC design enables simple speed control through voltage regulation or PWM techniques, making these motors suitable for microcontroller-based projects using Arduino, Raspberry Pi, or dedicated motor drivers.\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 Brushed DC Motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003ePololu\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\u003eNominal Voltage\u003c\/td\u003e\n\u003ctd\u003e6V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor Diameter\u003c\/td\u003e\n\u003ctd\u003e20mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor Length\u003c\/td\u003e\n\u003ctd\u003e41mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGear Type\u003c\/td\u003e\n\u003ctd\u003eMetal Spur Gears (Helical variants available)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOutput Shaft Diameter\u003c\/td\u003e\n\u003ctd\u003e3mm or 4mm depending on model\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGear Ratio Options\u003c\/td\u003e\n\u003ctd\u003eMultiple ratios from 50:1 to 1000:1 across series\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 Gear Construction: Precision-machined metal gears provide superior durability, low backlash below 5 degrees, and extended operational lifespan compared to plastic gear alternatives\u003c\/li\u003e\n\u003cli\u003eMultiple Gear Ratios: Series offers 12 distinct models (3450-3461) with varying gear ratios, enabling selection of optimal torque-speed characteristics for specific applications\u003c\/li\u003e\n\u003cli\u003eCompact Form Factor: 20mm diameter by 41mm length housing fits into space-constrained robotic platforms and mechanical assemblies without sacrificing torque output\u003c\/li\u003e\n\u003cli\u003eSimple Speed Control: Brushed DC design allows straightforward PWM speed modulation using standard motor drivers or microcontroller GPIO pins, no complex commutation required\u003c\/li\u003e\n\u003cli\u003eSealed Motor Design: Protective housing shields internal components from dust and minor moisture exposure, suitable for field robotics and outdoor automation applications\u003c\/li\u003e\n\u003cli\u003eStandard Output Shafts: Compatible with industry-standard wheel hubs, couplings, and mechanical components available in robotics supply chains\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 Drive Systems: Used as primary wheel drive motors in differential-drive robots where matched torque pairs enable precise steering and speed control for autonomous navigation\u003c\/li\u003e\n\u003cli\u003eWheeled Platform Locomotion: Powers tracked vehicles and four-wheel drive platforms requiring consistent torque delivery across extended operational periods in search-and-rescue or inspection robotics\u003c\/li\u003e\n\u003cli\u003eMechanical Automation: Drives conveyor systems, rotating mechanisms, and automated assembly equipment where low backlash and metal gear reliability ensure repeatable positioning accuracy\u003c\/li\u003e\n\u003cli\u003eRobotics Competitions: Standard choice for FIRST Robotics and similar competition platforms where compact size and proven reliability meet strict weight and space constraints\u003c\/li\u003e\n\u003cli\u003eEducational Robotics: Enables students to build functional mobile robots with professional-grade components, supporting hands-on learning in mechanical engineering and control systems\u003c\/li\u003e\n\u003cli\u003eWheelchair and Mobility Aids: Provides reliable propulsion for motorized mobility devices where dual-motor configurations enable independent speed control and turning\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eHow to Use\u003c\/h2\u003e\n\n\u003cp\u003eTo integrate the Pololu Metal Gearmotor into your project, first select the appropriate gear ratio model (3450-3461) based on your required torque and speed specifications. Mount the motor using the provided mounting tabs or custom brackets, ensuring the output shaft aligns with your driven component such as a wheel or pulley. Connect the motor leads to a suitable motor driver circuit capable of handling the motor's stall current (typically 1-2 amperes at 6V). For speed control, use PWM signals from your microcontroller with duty cycles between 0-100% to modulate voltage delivered to the motor. Always include a freewheeling diode across the motor terminals to suppress back-EMF spikes when the motor is powered off, protecting your motor driver circuitry.\u003c\/p\u003e\n\n\u003cp\u003eFor optimal performance, verify that your power supply can deliver sufficient current during acceleration and stall conditions. Use a motor driver IC such as the L298N, DRV8833, or Pololu motor drivers specifically designed for this voltage and current range. If implementing speed feedback, consider adding optical encoders to the output shaft for closed-loop control. Mount the motor securely to prevent vibration transmission to your robot frame, and apply a small amount of lightweight machine oil to the output shaft bearing annually to maintain smooth operation. Always test motor direction and speed response before deploying your system in field conditions.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between the 12 models in the 3450-3461 series?\u003c\/summary\u003e\n\u003cp\u003eThe 12 models offer different gear ratios ranging from 50:1 to 1000:1, with variations in output torque and speed. Models 3450-3453 typically feature lower gear ratios (50:1 to 150:1) for higher-speed applications, while models 3456-3459 provide mid-range ratios (200:1 to 500:1), and models 3460-3461 offer the highest ratios (750:1 to 1000:1) for maximum torque. Consult the specific datasheet for your model number to verify exact specifications.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eCan I control the motor speed using PWM with an Arduino?\u003c\/summary\u003e\n\u003cp\u003eYes, the brushed DC design allows direct PWM speed control. Connect the motor through an appropriate motor driver module (such as L298N or DRV8833) to your Arduino PWM pins. Use analogWrite() function with values 0-255 to modulate speed from 0% to 100%. Ensure your motor driver can handle the motor's current requirements and include freewheeling diodes to protect your Arduino from back-EMF spikes.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the maximum continuous current and stall current for this motor?\u003c\/summary\u003e\n\u003cp\u003eTypical continuous current at 6V is 0.3-0.5 amperes depending on gear ratio and load. Stall current (when the motor is blocked from rotating) can reach 1.5-2.5 amperes. Always design your motor driver circuit and power supply to handle peak stall current, and use current-limiting protection in your driver circuit to prevent damage during sudden mechanical jamming.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eIs this motor suitable for outdoor robotics applications?\u003c\/summary\u003e\n\u003cp\u003eThe sealed motor design provides basic protection against dust and light moisture exposure, making it suitable for most outdoor robotics applications. However, for extreme weather conditions or submersion, additional waterproofing measures such as conformal coating or protective enclosures are recommended. The metal gear construction ensures durability in field conditions with minimal maintenance requirements.\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 3450\/3451\/3452\/3453\/3454\/3455\/3456\/3457\/3458\/3459\/3460\/3461 Metal Gearmotor 20Dx41L mm 6V Online in India\u003c\/h2\u003e\n\n\u003cp\u003ePurchase the \u003cstrong\u003ePololu 3450\/3451\/3452\/3453\/3454\/3455\/3456\/3457\/3458\/3459\/3460\/3461 Metal Gearmotor 20Dx41L mm 6V\u003c\/strong\u003e online at \u003ca href=\"https:\/\/thetechdepot.in\"\u003eThe Tech Depot\u003c\/a\u003e, 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 \u003cstrong\u003ePololu 3450\/3451\/3452\/3453\/3454\/3455\/3456\/3457\/3458\/3459\/3460\/\u003c\/strong\u003e\u003c\/p\u003e","brand":"The Tech Depot","offers":[{"title":"Default Title","offer_id":48743641743617,"sku":"TTD-8309","price":2759.92,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/1577\/3185\/files\/13e473b084fce54ff37708ee36bd546a.jpg?v=1778060841","url":"https:\/\/techdepot.in\/products\/pololu-3450-3451-3452-3453-3454-3455-3456-3457-3458-3459-3460-3461-metal-gearmotor-20dx41l-mm-6v","provider":"Tech Depot India","version":"1.0","type":"link"}