{"product_id":"open-linear-motion-bushing-bearing-12x21x30mm-two","title":"Open Linear Motion Bushing Bearing 12x21x30mm Two-Pack LM12UU-OP Precision Guide For 3D Printers And CNC Routers Smooth Low Friction Rollers Rugged Steel Housing Easy Install And Replacement","description":"\u003cdiv\u003eOpen Linear Motion Bushing LM12UU-OP 12x21x30mm 2-Pack\u003cbr\u003e\n✔️ 2 pcs LM12UU-OP, 12mm bore, 21mm OD, 30mm length, steel\/nylon \u003cp\u003eLM12UU-OP Open Linear Motion Bushing Ball Bearings are precision sliding components designed for smooth, low friction travel in CNC routers, 3D printers, and linear guide assemblies. The rubber sealed UU series helps keep out dust and moisture while offering easy installation and replacement.\u003c\/p\u003e \u003cp\u003e✅ Inner diameter: 12 mm (0.47 in) \u003cbr\u003e✅ Outer diameter: 21 mm (0.83 in) \u003cbr\u003e✅ Total length: 30 mm (1.18 in) \u003cbr\u003e✅ Material: bearing steel with nylon inner race \u003cbr\u003e✅ Sealed for dust and moisture protection\u003c\/p\u003e \u003cp\u003e💡 What is a pillow block bearing used for?\u003c\/p\u003e\n\u003cp\u003ePillow block bearings are handy for supporting rotating shafts in machinery, keeping shafts aligned in linear guide systems and rotating assemblies. They simplify mounting and maintenance in CNC machines, 3D printers, and automation setups.\u003c\/p\u003e\n- Supports rotating shafts in equipment\n- Helps maintain shaft alignment in linear motion systems\n- Handy for quick install and replacement in lightweight industrial setups\n- Reduces friction and wear in moving parts✝️\u003c\/div\u003e","brand":"Amazon","offers":[{"title":"Default Title","offer_id":49043363332331,"sku":"VXB07RGFT93R","price":49.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/3268\/0683\/files\/71BUASYbxGL.jpg?v=1783872258","url":"https:\/\/vxb.com\/products\/open-linear-motion-bushing-bearing-12x21x30mm-two","provider":"VXB Bearings","version":"1.0","type":"link"}