{"product_id":"400mm-mgn12-linear-rail-guide-with-mgn12h-stainles","title":"400mm MGN12 Linear Rail Guide With MGN12H Stainless Steel Black Carriage Block For Ender 3 3D Printers And CNC Machines Upgrade Kit For Plug And Play Smooth Precise Motion","description":"\u003cdiv\u003e400mm MGN12 Linear Rail Kit with MGN12H Stainless Carriage\u003cbr\u003e\n✔️ 400mm rail, MGN12H stainless carriage, pre-loaded blocks \u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThis precision linear rail guide delivers smooth, straight motion for Ender 3 printers and CNC setups. It’s designed for plug-and-play upgrades, offering improved rigidity and repeatable accuracy on hobby machines.\u003c\/p\u003e ✅ Rail Length: 400 mm (15.74 in) \u003cbr\u003e\n✅ Rail Material: bearing steel \u003cbr\u003e\n✅ Carriage: MGN12H, stainless steel, pre-loaded \u003cbr\u003e\n✅ Carriage features: two rubber stoppers on each side to prevent fall-out \u003cbr\u003e\n✅ Mounting: compatible with 20 series EU aluminum profiles; uses M3 screws \u003cbr\u003e\n✅ Pack size: 1 rail + 1 carriage \u003cbr\u003e \u003cp\u003e💡 What is a linear rail guide used for in hobby CNC and 3D printers?\u003c\/p\u003e\nIn simple terms, it provides smooth, precise guidance along an axis to boost accuracy and reliability.\n* handy for precise X\/Y\/Z axis movement in hobby CNC and 3D printers\n* improves rigidity, repeatability, and surface finish on prints and milled parts\n* easy upgrade path for Ender 3 and other small machines using 20-series aluminum profiles\n* sealed ball bearing, stainless carriage for durability \u003c\/div\u003e","brand":"Amazon","offers":[{"title":"Default Title","offer_id":48077071220971,"sku":"VXB07ZVFTZVP","price":88.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/3268\/0683\/files\/51pYUqQ7PxL.jpg?v=1775852628","url":"https:\/\/vxb.com\/products\/400mm-mgn12-linear-rail-guide-with-mgn12h-stainles","provider":"VXB Bearings","version":"1.0","type":"link"}