{"product_id":"lm12uu-linear-ball-bearings-12mm-bore-21mm-outer-d","title":"LM12UU Linear Ball Bearings 12mm Bore 21mm Outer Diameter 30mm Length 4 Pack Double Sided Rubber Sealed Linear Motion Bushings For CNC Machines Engraving And 3D Printers Ideal For DIY Builds","description":"\u003cdiv\u003eLM12UU 12mm Bore Linear Ball Bearings - 4 Pack\u003cbr\u003e\n✔️ 4-pack LM12UU, 12mm bore, 21mm OD, 30mm length, rubber seals \u003cp\u003eThese LM12UU linear bearings are precision sleeves with dual rubber seals designed for smooth, low-friction linear motion. They’re a common choice for DIY CNC machines, engraving setups, and 3D printer axes, delivering reliable guidance and long service life in compact builds.\u003c\/p\u003e \u003cp\u003e✅ Bore Dia: 12 mm (0.47 in)\u003cbr\u003e\n✅ Outer Dia: 21 mm (0.83 in)\u003cbr\u003e\n✅ Length: 30 mm (1.18 in)\u003cbr\u003e\n✅ Dynamic Load: 510 N\u003cbr\u003e\n✅ Static Load: 784 N\u003cbr\u003e\n✅ Packing: 4 x LM12UU bearings\u003cbr\u003e\n✅ Material\/Seals: bearing steel with double-sided rubber seals\u003cbr\u003e \u003c\/p\u003e \u003cp\u003e💡 What is a common use for sealed LM12UU linear ball bearings in hobby CNC and 3D printers?\u003c\/p\u003e\n- handy for precise axis motion in compact CNC builds\n- ideal for XY or Z-axis guides using cylindrical shafts\n- reduces friction and wear on sliding components\u003cbr\u003e \u003c\/div\u003e","brand":"Amazon","offers":[{"title":"Default Title","offer_id":48077177159915,"sku":"VXB0FQV4KNLL","price":49.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/3268\/0683\/files\/61Fq2x8faOL.jpg?v=1775855219","url":"https:\/\/vxb.com\/products\/lm12uu-linear-ball-bearings-12mm-bore-21mm-outer-d","provider":"VXB Bearings","version":"1.0","type":"link"}