{"product_id":"phidgets-nema-23-bipolar-stepper-motor-18deg-28a-771","title":"Phidgets NEMA-23 Bipolar Stepper Motor 1.8deg, 2.8A, 77:1","description":"\u003cdiv class=\"product-block-list__item product-block-list__item--description details_product\"\u003e\u003cdiv class=\"card\"\u003e\u003cdiv class=\"card__header\"\u003e\r\n\u003ch2 class=\"card__title heading h3\"\u003eDescription\u003c\/h2\u003e\r\n\u003c\/div\u003e\u003cdiv class=\"card__section expandable-content desc-view-more\" id=\"main-description\"\u003e\u003cdiv class=\"rte text--pull\"\u003e\u003cul\u003e\n\t\u003cli\u003ePhidgets NEMA-23 Bipolar Stepper Motor 1.8deg, 2.8A, 77:1\u003c\/li\u003e\n\t\u003cli\u003e240 kg-cm torque rating\u003c\/li\u003e\n\t\u003cli\u003e1.8 degree step angle (0.023 degrees after gearbox)\u003c\/li\u003e\n\t\u003cli\u003e77:1 planetary gearbox\u003c\/li\u003e\n\t\u003cli\u003eRated for 2.8A of current\u003c\/li\u003e\n\t\u003cli\u003eConnects to a Phidgets stepper controller\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eThe \u003cstrong\u003ePhidgets NEMA-23 Bipolar Stepper Motor 1.8deg, 2.8A, 77:1\u003c\/strong\u003e features an integrated 77:1 planetary gearbox, delivering precise motion with a step angle of 1.8\u0026deg; at the motor shaft, which translates to approximately 0.023\u0026deg; at the output of the gearbox. The motor includes an exposed rear shaft, allowing for easy integration of an encoder or shaft coupler. Designed for high-performance applications, it offers a holding torque of 240 kg\u0026middot;cm and can produce up to 960 kg\u0026middot;cm of torque at 2.8 A, though the gearbox is rated for continuous torque of 240 kg\u0026middot;cm. Users should calculate exact step angles by dividing the motor\u0026rsquo;s 1.8\u0026deg; step angle by the gearbox reduction ratio for accurate motion planning.\u003c\/p\u003e\n\n\u003cp data-end=\"1328\" data-start=\"762\"\u003eThis stepper motor operates at 24 V DC and must be used with a constant current or chopper drive controller, such as a Phidgets stepper controller, to avoid damage and maintain warranty coverage. Its robust NEMA-23 design, combined with the planetary gearbox, provides reliable performance for robotics, CNC, and automation projects. Key features include a 240 kg\u0026middot;cm torque rating, precise motion control with 0.023\u0026deg; step increments after gearing, and compatibility with Phidgets stepper controllers, making it an ideal choice for demanding precision applications.\u003c\/p\u003e\n\u003c\/div\u003e\u003cbutton class= \"expandable-content__toggle\" aria-expanded=\"false\" aria-controls=\"main-description\"\u003e\u003cspan class=\"expandable-content__toggle-icon\"\u003e\u003c\/span\u003e\u003cspan class=\"expandable-content__toggle-text\" data-view-more=\"View more\" data-view-less=\"View less\"\u003eView more\u003c\/span\u003e\u003c\/button\u003e\u003c\/div\u003e\u003c\/div\u003e\u003c\/div\u003e\u003cdiv class=\"card details_product\"\u003e\u003cbutton class=\"card__collapsible-button\" data-action=\"toggle-collapsible\" aria-expanded=\"false\" aria-controls=\"unique-tab-2\"\u003e\r\n\u003cspan class=\"card__title heading h3\"\u003eWhat's Included\u003c\/span\u003e\r\n\u003cspan\u003e\r\n\u003csvg focusable=\"false\" class=\"icon icon--arrow-bottom\" viewBox=\"0 0 12 8\" role=\"presentation\"\u003e\r\n\u003cpath stroke=\"currentColor\" stroke-width=\"2\" d=\"M10 2L6 6 2 2\" fill=\"none\" stroke-linecap=\"square\"\u003e\u003c\/path\u003e\r\n\u003c\/svg\u003e\r\n\u003c\/span\u003e\r\n\u003c\/button\u003e\r\n\u003cdiv id=\"unique-tab-2\" class=\"card__collapsible\"\u003e\r\n\u003cdiv class=\"card__collapsible-content\"\u003e\r\n\u003cdiv class=\"rte text--pull\"\u003e\r\n\u003cul\u003e\n\t\u003cli\u003e1x\u0026nbsp;Phidgets NEMA-23 Bipolar Stepper Motor 1.8deg, 2.8A, 77:1\u003c\/li\u003e\n\u003c\/ul\u003e\n\r\n\u003c\/div\u003e\r\n\u003c\/div\u003e\r\n\u003c\/div\u003e\u003c\/div\u003e\u003cdiv class=\"card details_product\"\u003e\u003cbutton class=\"card__collapsible-button\" data-action=\"toggle-collapsible\" aria-expanded=\"false\" aria-controls=\"unique-tab-3\"\u003e\r\n\u003cspan class=\"card__title heading h3\"\u003eDimensions\u003c\/span\u003e\r\n\u003cspan\u003e\r\n\u003csvg focusable=\"false\" class=\"icon icon--arrow-bottom\" viewBox=\"0 0 12 8\" role=\"presentation\"\u003e\r\n\u003cpath stroke=\"currentColor\" stroke-width=\"2\" d=\"M10 2L6 6 2 2\" fill=\"none\" stroke-linecap=\"square\"\u003e\u003c\/path\u003e\r\n\u003c\/svg\u003e\r\n\u003c\/span\u003e\r\n\u003c\/button\u003e\r\n\u003cdiv id=\"unique-tab-3\" class=\"card__collapsible\"\u003e\r\n\u003cdiv class=\"card__collapsible-content\"\u003e\r\n\u003cdiv class=\"rte text--pull\"\u003e\r\n\u003cul\u003e\n\t\u003cli\u003eShaft diameter: 12mm\u003c\/li\u003e\n\t\u003cli\u003eRear shaft diameter: 3.9mm\u003c\/li\u003e\n\t\u003cli\u003eWeight: 1.5kg\u003c\/li\u003e\n\u003c\/ul\u003e\n\r\n\u003c\/div\u003e\r\n\u003c\/div\u003e\r\n\u003c\/div\u003e\u003c\/div\u003e\u003cdiv class=\"card details_product\"\u003e\u003cbutton class=\"card__collapsible-button\" data-action=\"toggle-collapsible\" aria-expanded=\"false\" aria-controls=\"unique-tab-4\"\u003e\r\n\u003cspan class=\"card__title heading h3\"\u003eLinks\u003c\/span\u003e\r\n\u003cspan\u003e\r\n\u003csvg focusable=\"false\" class=\"icon icon--arrow-bottom\" viewBox=\"0 0 12 8\" role=\"presentation\"\u003e\r\n\u003cpath stroke=\"currentColor\" stroke-width=\"2\" d=\"M10 2L6 6 2 2\" fill=\"none\" stroke-linecap=\"square\"\u003e\u003c\/path\u003e\r\n\u003c\/svg\u003e\r\n\u003c\/span\u003e\r\n\u003c\/button\u003e\r\n\u003cdiv id=\"unique-tab-4\" class=\"card__collapsible\"\u003e\r\n\u003cdiv class=\"card__collapsible-content\"\u003e\r\n\u003cdiv class=\"rte text--pull\"\u003e\r\n\u003cp\u003e\u003cstrong\u003ePDF Files\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\t\u003cli\u003e\u003ca href=\"https:\/\/cdn.robotshop.com\/media\/p\/phi\/rb-phi-266\/pdf\/datasheet-3334.pdf\" target=\"_blank\"\u003eDatasheet\u003c\/a\u003e\u003c\/li\u003e\n\t\u003cli\u003e\u003ca href=\"https:\/\/cdn.robotshop.com\/media\/p\/phi\/rb-phi-266\/pdf\/mechanical-drawing-3334.pdf\" target=\"_blank\"\u003eMechanical Drawing\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\r\n\u003c\/div\u003e\r\n\u003c\/div\u003e\r\n\u003c\/div\u003e\u003c\/div\u003e\u003cdiv class=\"card details_product\"\u003e\u003cbutton class=\"card__collapsible-button\" data-action=\"toggle-collapsible\" aria-expanded=\"false\" aria-controls=\"unique-tab-7\"\u003e\r\n\u003cspan class=\"card__title heading h3\"\u003eSpecifications\u003c\/span\u003e\r\n\u003cspan\u003e\r\n\u003csvg focusable=\"false\" class=\"icon icon--arrow-bottom\" viewBox=\"0 0 12 8\" role=\"presentation\"\u003e\r\n\u003cpath stroke=\"currentColor\" stroke-width=\"2\" d=\"M10 2L6 6 2 2\" fill=\"none\" stroke-linecap=\"square\"\u003e\u003c\/path\u003e\r\n\u003c\/svg\u003e\r\n\u003c\/span\u003e\r\n\u003c\/button\u003e\r\n\u003cdiv id=\"unique-tab-7\" class=\"card__collapsible\"\u003e\r\n\u003cdiv class=\"card__collapsible-content\"\u003e\r\n\u003cdiv class=\"rte text--pull\"\u003e\r\n\u003cp\u003e\u003cstrong\u003eMotor Properties\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eMotor Type: Bipolar Stepper\u003c\/li\u003e\n\t\u003cli\u003eManufacturer Part Number: 57STH56-2804B \/ 56JXS300K77\u003c\/li\u003e\n\t\u003cli\u003eStep Angle: 1.8\u0026deg;\u003c\/li\u003e\n\t\u003cli\u003eStep Accuracy: \u0026plusmn;5%\u003c\/li\u003e\n\t\u003cli\u003eHolding Torque: 240 kg\u0026middot;cm\u003c\/li\u003e\n\t\u003cli\u003eRated Torque: 240 kg\u0026middot;cm\u003c\/li\u003e\n\t\u003cli\u003eMaximum Motor Speed: 10 RPM\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eElectrical Properties\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eRecommended Voltage: 24 V DC\u003c\/li\u003e\n\t\u003cli\u003eRated Current: 2.8 A\u003c\/li\u003e\n\t\u003cli\u003eCoil Resistance: 900 m\u0026Omega;\u003c\/li\u003e\n\t\u003cli\u003ePhase Inductance: 2.5 mH\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003ePhysical Properties\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eShaft Diameter: 12 mm\u003c\/li\u003e\n\t\u003cli\u003eKeyway Width: 4 mm\u003c\/li\u003e\n\t\u003cli\u003eRear Shaft Diameter: 3.9 mm\u003c\/li\u003e\n\t\u003cli\u003eMounting Plate Size: NEMA-23\u003c\/li\u003e\n\t\u003cli\u003eWeight: 1.5 kg\u003c\/li\u003e\n\t\u003cli\u003eNumber of Leads: 4\u003c\/li\u003e\n\t\u003cli\u003eWire Length: 300 mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eGearbox Properties\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cul\u003e\n\t\u003cli\u003eGearbox Type: Planetary\u003c\/li\u003e\n\t\u003cli\u003eGear Ratio: 76 49\u0026frasl;64 : 1\u003c\/li\u003e\n\t\u003cli\u003eBacklash Error: 1 1\u0026frasl;2\u0026deg;\u003c\/li\u003e\n\t\u003cli\u003eMaximum Strength of Gears: 240 kg\u0026middot;cm\u003c\/li\u003e\n\t\u003cli\u003eShaft Maximum Axial Load: 100 N\u003c\/li\u003e\n\t\u003cli\u003eShaft Maximum Radial Load: 250 N\u003c\/li\u003e\n\u003c\/ul\u003e\n\r\n\u003c\/div\u003e\r\n\u003c\/div\u003e\r\n\u003c\/div\u003e\u003c\/div\u003e","brand":"Phidgets","offers":[{"title":"Default Title","offer_id":42600209842344,"sku":"RB-Phi-266","price":13443.0,"currency_code":"JPY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0573\/1483\/6648\/files\/phidgets-nema-23-bipolar-stepper-motor-18deg-28a-771-01.webp?v=1758810603","url":"https:\/\/jp.robotshop.com\/en\/products\/phidgets-nema-23-bipolar-stepper-motor-18deg-28a-771","provider":"RoboItchi","version":"1.0","type":"link"}