{"product_id":"mgn12h-black-linear-guide-rail-300mm-with-bearing","title":"MGN12H Black Linear Guide Rail 300mm With Bearing Block For Ender 3 CoreXY Tronxy 3D Printers Upgrades And CNC Machines Ultra Smooth Pro Grade Rust Resistant Steel Carriage System","description":"\u003cdiv\u003eSingle 300mm linear guide rail with bearing block\u003cbr\u003e\n✔️ Sealed ball bearing rail with anti-rust coating and steel carriage \u003cp\u003eThe MGN12H Black Linear Guide Rail 300mm with Bearing Block is a precision linear motion system and linear slide unit built to upgrade 3D printers, CNC machines, and related equipment. It combines rust resistance and a sturdy carriage to improve load capacity and movement quality.\u003c\/p\u003e \u003cp\u003e✅ 300mm linear guide rail with anti-rust coating and end stoppers \u003cbr\u003e\n✅ Heavy-duty bearing steel for high stiffness and durability \u003cbr\u003e\n✅ Suitable for Ender 3, CR-10, and CNC setups \u003cbr\u003e\n✅ Drop-proof rubber ends prevent carriage from falling off \u003cbr\u003e\n\u003c\/p\u003e \u003cp\u003e💡 What is a pillow block bearing used for?\u003c\/p\u003e\n- Supports shaft alignment and reduces wobble in moving axes\n- Improves load handling and motion smoothness in printers and CNCs\n- Provides rugged, rust-resistant performance for long-term use\n- Works with standard bearing blocks and sealed ball bearings \u003c\/div\u003e","brand":"Amazon","offers":[{"title":"Default Title","offer_id":48077205537003,"sku":"VXB0BZ3YB9TJ","price":59.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/3268\/0683\/files\/51oKu8JmITL.jpg?v=1775856110","url":"https:\/\/vxb.com\/products\/mgn12h-black-linear-guide-rail-300mm-with-bearing","provider":"VXB Bearings","version":"1.0","type":"link"}