{"product_id":"ratio-101-planetary-gearbox-for-nema-17-stepper-mo-8419","title":"Ratio 10:1 Planetary Gearbox for Nema 17 Stepper Motor 42-55mm Backlash 15 arcmin Input Shaft 25.5mm φ5mm Planetary Reducer for 42 Step Motor incl. 4 Screw 2 Plug 1 Key CNC 3D Printer DIY","description":"\u003cdiv\u003e\n\u003cp\u003eHigh-torque 10:1 planetary gearbox for Nema 17 motors used in CNC printers\u003cbr\u003e\n✔️ Includes 4 screws, 2 plugs, 1 key and mounting hardware\u003c\/p\u003e \u003cp\u003eCompact planetary gearbox designed for Nema 17 stepper motors, ideal for CNC machines, robotics, and 3D printers where high torque and precise motion are required.\u003c\/p\u003e ✅ Ratio 10:1 for torque multiplication and smooth speed control \u003cbr\u003e\n✅ Nominal output torque 5 Nm; peak 10 Nm \u003cbr\u003e\n✅ Backlash ≤ 15 arcmin for precise positioning \u003cbr\u003e\n✅ Input shaft Ø5 mm; length 25.5 mm; Output shaft Ø8 mm; length 21.5 mm \u003cbr\u003e\n✅ Body length 42-55 mm; weight 235 g; compatible with shaft length 22-25 mm \u003cbr\u003e\n✅ Efficiency 96%; nominal input speed 3000 RPM; max input speed 6000 RPM \u003cbr\u003e\n✅ IP54 waterproof; operating temp -20℃ to +150℃; life ~20,000 h \u003cbr\u003e \u003ctable\u003e \u003cthead\u003e \u003ctr\u003e\n\u003cth\u003eDimension\u003c\/th\u003e\n\u003cth\u003eMetric\u003c\/th\u003e\n\u003cth\u003eImperial\u003c\/th\u003e\n\u003c\/tr\u003e \u003c\/thead\u003e \u003ctbody\u003e \u003ctr\u003e\n\u003ctd\u003eInput shaft diameter\u003c\/td\u003e\n\u003ctd\u003e5 mm\u003c\/td\u003e\n\u003ctd\u003e0.197 in\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eInput shaft length\u003c\/td\u003e\n\u003ctd\u003e25.5 mm\u003c\/td\u003e\n\u003ctd\u003e1.00 in\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eOutput shaft diameter\u003c\/td\u003e\n\u003ctd\u003e8 mm\u003c\/td\u003e\n\u003ctd\u003e0.315 in\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eOutput shaft length\u003c\/td\u003e\n\u003ctd\u003e21.5 mm\u003c\/td\u003e\n\u003ctd\u003e0.85 in\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eBody length\u003c\/td\u003e\n\u003ctd\u003e42 to 55 mm\u003c\/td\u003e\n\u003ctd\u003e1.66 to 2.17 in\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eInstallation hole distance\u003c\/td\u003e\n\u003ctd\u003e31 mm\u003c\/td\u003e\n\u003ctd\u003e1.22 in\u003c\/td\u003e\n\u003c\/tr\u003e \u003c\/tbody\u003e\n\u003c\/table\u003e \u003cp\u003e💡 What is a planetary gearbox and why is it used with stepper motors in precision CNC and 3D printer builds?\u003c\/p\u003e\nA planetary gearbox multiplies torque while keeping size tight, giving steady, precise motion.\n- compact planetary gearbox for stepper motors in CNC and 3D printers\n- high torque at low speed with low backlash for accurate positioning\n- durable design for long service life in hobby robotics and automation \u003c\/div\u003e","brand":"Bearings Canada","offers":[{"title":"Default Title","offer_id":52260225253695,"sku":"VXB0FHHV22HD","price":148.04,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0887\/4750\/8031\/files\/nema-17-planetary-gearbox-10-1-ratio.jpg?v=1772831237","url":"https:\/\/bearingscanada.com\/products\/ratio-101-planetary-gearbox-for-nema-17-stepper-mo-8419","provider":"Bearings Canada","version":"1.0","type":"link"}