{"product_id":"nema17-pr42hs40-1704-7-2kg-cm-stepper-motor-round-type-shaft","title":"NEMA17 PR42HS40-1704 7.2kg-cm Stepper Motor-Round Type Shaft","description":"\u003cmeta name=\"description\" content=\"Buy NEMA17 PR42HS40-1704 7.2kg-cm Stepper Motor-Round Type Shaft 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\u003eNEMA17 PR42HS40-1704 7.2kg-cm Stepper Motor-Round Type Shaft\u003c\/h1\u003e\n\n\u003cp\u003eThe NEMA17 PR42HS40-1704 is a precision stepper motor featuring a round type shaft configuration, delivering 7.2 kg-cm holding torque ideal for mid-range automation applications. Professional engineers and hobbyists use this motor in CNC machines, 3D printers, laser cutters, and robotic systems where accurate positional control is critical without encoder feedback. This motor solves the challenge of achieving repeatable, high-precision motion in open-loop systems while maintaining cost-effectiveness and reliability.\u003c\/p\u003e\n\n\u003ch2\u003eProduct Overview\u003c\/h2\u003e\n\n\u003cp\u003eThe NEMA17 PR42HS40-1704 stepper motor operates on the principle of electromagnetic coil energization in sequential patterns, creating rotational force through interaction with permanent magnets. The motor features a 1.7-ampere rated current per phase, 1.9-ohm coil resistance, and 4-wire configuration allowing for flexible control via microcontroller or stepper driver modules. The round type shaft design provides superior mechanical coupling compatibility compared to flat-shaft variants, enabling direct mounting of pulleys, gears, and couplings without additional adapters.\u003c\/p\u003e\n\n\u003cp\u003eThis NEMA17 model stands out with its 7.2 kg-cm holding torque specification, making it suitable for applications requiring moderate load handling while maintaining compact form factor. The motor operates at 1.8 degrees per step resolution in full-step mode, translating to 200 steps per complete revolution, allowing for smooth motion control in positioning applications. The round shaft (typically 5mm diameter) provides excellent concentricity and runout characteristics essential for precision mechanical assemblies.\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\u003eNEMA17 Bipolar Stepper Motor Round Shaft\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003ePR42HS40-1704 Series\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\u003eHolding Torque\u003c\/td\u003e\n\u003ctd\u003e7.2 kg-cm at rated current\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStep Angle\u003c\/td\u003e\n\u003ctd\u003e1.8 degrees per step (200 steps\/revolution)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Current\u003c\/td\u003e\n\u003ctd\u003e1.7 amperes per phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoil Resistance\u003c\/td\u003e\n\u003ctd\u003e1.9 ohms per phase\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShaft Type\u003c\/td\u003e\n\u003ctd\u003eRound shaft 5mm diameter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotor Frame\u003c\/td\u003e\n\u003ctd\u003eNEMA17 (42mm x 42mm mounting face)\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\u003e7.2 kg-cm holding torque provides reliable load retention in vertical and horizontal mounting configurations without power consumption during idle periods\u003c\/li\u003e\n\u003cli\u003eRound type shaft design eliminates need for shaft adapters and enables direct coupling to pulleys, flexible couplings, and precision gears with minimal runout\u003c\/li\u003e\n\u003cli\u003e1.8-degree step resolution delivers 200 steps per revolution enabling smooth motion profiles and precise positioning down to 1.8-degree increments\u003c\/li\u003e\n\u003cli\u003e4-wire bipolar configuration allows flexible control via standard stepper drivers, Arduino boards, and industrial motion controllers with simple pulse-direction interface\u003c\/li\u003e\n\u003cli\u003e1.7-ampere rated current ensures adequate torque output while remaining compatible with common 12V and 24V power supply systems used in maker and industrial projects\u003c\/li\u003e\n\u003cli\u003eCompact NEMA17 form factor (42mm x 42mm) fits space-constrained applications including 3D printers, CNC routers, and automated assembly equipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eApplications and Use Cases\u003c\/h2\u003e\n\n\u003cul\u003e\n\u003cli\u003e3D Printer XY and Z-axis motion: The 7.2 kg-cm torque handles print head and bed movement with precision positioning required for layer-by-layer printing accuracy\u003c\/li\u003e\n\u003cli\u003eCNC Router and Engraver: Drives spindle positioning and tool movement in desktop CNC machines where open-loop control eliminates feedback sensor complexity and cost\u003c\/li\u003e\n\u003cli\u003eLaser Cutter Gantry Systems: Powers X and Y-axis galvanometer mirror positioning and material cutting tables requiring repeatable motion without encoder feedback\u003c\/li\u003e\n\u003cli\u003eAutomated Packaging and Labeling: Controls conveyor belt advancement, label dispensing, and product positioning in light-duty industrial automation applications\u003c\/li\u003e\n\u003cli\u003eRobotic Arm Joints: Provides controlled joint rotation in collaborative robot arms and robotic manipulators for research and educational robotics platforms\u003c\/li\u003e\n\u003cli\u003eTelescope and Camera Mount Tracking: Enables precise astronomical object tracking and camera pan-tilt positioning in astrophotography and surveillance systems\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eHow to Use\u003c\/h2\u003e\n\n\u003cp\u003eTo implement the NEMA17 PR42HS40-1704 stepper motor in your project, first select an appropriate stepper driver module rated for 2-3 amperes per phase such as DRV8825, A4988, or industrial equivalents. Connect the motor's four wires to the driver following color-coded conventions: typically red and pink to one coil phase, blue and black to the second phase. Supply 12V to 24V DC power to the driver module, then control motor rotation by sending pulse signals to the step input pin at frequencies between 1Hz and 10kHz depending on desired speed, with direction controlled via a logic-level pin.\u003c\/p\u003e\n\n\u003cp\u003eMount the motor using the four M3 mounting holes on the 42mm x 42mm face, ensuring the round shaft aligns concentrically with your mechanical load. For coupling the 5mm round shaft to external components, use precision flexible couplings or directly mount pulleys with 5mm bore. Implement microstepping in your driver firmware (half-step or quarter-step modes) to achieve smoother motion and reduced vibration compared to full-step operation. Monitor motor temperature during extended operation; if the motor becomes too hot to touch, reduce current or increase cooling. Always include flyback diodes across motor coil terminals in your driver circuit to protect against voltage spikes during phase switching.\u003c\/p\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the maximum speed this NEMA17 motor can achieve?\u003c\/summary\u003e\n\u003cp\u003eThe NEMA17 PR42HS40-1704 can operate reliably up to 3000 RPM in ideal conditions with proper acceleration profiles. However, torque decreases significantly above 1000 RPM due to back-EMF effects. For applications requiring sustained high speed, operate below 1500 RPM. The maximum speed depends on your driver's pulse frequency capability and the load inertia; rapid acceleration to high speeds may cause step loss if acceleration time is insufficient.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eCan I use this motor with Arduino and standard stepper drivers?\u003c\/summary\u003e\n\u003cp\u003eYes, the NEMA17 PR42HS40-1704 is fully compatible with Arduino microcontrollers and popular stepper drivers like DRV8825, A4988, and TMC2208. The 1.7-ampere rated current fits within the capability of these drivers when properly configured. Use the AccelStepper library or similar Arduino stepper control libraries to manage step pulses and direction signals. Ensure your power supply can deliver sufficient current for continuous operation and include proper decoupling capacitors near the driver module.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003cdetails\u003e\n\u003csummary\u003eWhat is the difference between round shaft and flat shaft stepper motors?\u003c\/summary\u003e\n\u003cp\u003eThe round shaft design on this NEMA17 provides superior mechanical concentricity and runout characteristics compared to flat-shaft variants, making it ideal for precision applications requiring direct pulley or coupling mounting. Round shafts eliminate the need for shaft adapters and reduce alignment errors. Flat shafts are primarily used in applications requiring positive drive through key slots. For most modern CNC, 3D printer, and automation applications, the round shaft is preferred due to its superior precision and ease of mechanical integration.\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 NEMA17 PR42HS40-1704 7.2kg-cm Stepper Motor-Round Type Shaft Online in India\u003c\/h2\u003e\n\n\u003cp\u003ePurchase the NEMA17 PR42HS40-1704 7.2kg-cm Stepper Motor-Round Type Shaft 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 NEMA17 PR42HS40-1704 7.2kg-cm Stepper Motor-Round Type Shaft 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":48742488736001,"sku":"TTD-5536","price":981.77,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0819\/1577\/3185\/files\/4e5a83530ac7b65b8be8f40023ae0bb0.jpg?v=1778028497","url":"https:\/\/techdepot.in\/products\/nema17-pr42hs40-1704-7-2kg-cm-stepper-motor-round-type-shaft","provider":"Tech Depot India","version":"1.0","type":"link"}