{"product_id":"ultra-smooth-sbr12-300mm-1181-inch-linear-motion-r","title":"Heavy Duty Linear Motion Rail Kit 300mm SBR12 12mm Shaft Slide Guide With SBR12UU Bearings 1 Piece Plus 2 Bearings For CNC Machines And 3D Printers Low Noise High Precision Long Lasting","description":"\u003cdiv\u003e300mm Heavy Duty Linear Rail Kit with SBR12UU Bearings\u003cbr\u003e\n✔️ 1x rail, 2x SBR12UU blocks, smooth, low-noise precision \u003cp\u003eThis heavy-duty linear motion rail kit is built for precise, quiet, and reliable travel in CNC machines, 3D printers, laser cutters, and automation rigs. The 300mm rail (SBR12) pairs with two SBR12UU bearing blocks to provide smooth, accurate guidance and long-lasting performance in demanding setups.\u003c\/p\u003e \u003ctable\u003e \u003cthead\u003e \u003ctr\u003e\n\u003cth\u003eComponent\u003c\/th\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003c\/tr\u003e \u003c\/thead\u003e \u003ctbody\u003e \u003ctr\u003e\n\u003ctd\u003eRail length\u003c\/td\u003e\n\u003ctd\u003e300 mm\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eShaft diameter\u003c\/td\u003e\n\u003ctd\u003e12 mm\u003c\/td\u003e\n\u003c\/tr\u003e \u003ctr\u003e\n\u003ctd\u003eIncludes\u003c\/td\u003e\n\u003ctd\u003e1 rail + 2 bearing blocks\u003c\/td\u003e\n\u003c\/tr\u003e \u003c\/tbody\u003e\n\u003c\/table\u003e\n \u003cp\u003e✅ 300 mm rail length\u003cbr\u003e\n✅ 12 mm shaft diameter\u003cbr\u003e\n✅ Includes 2x SBR12UU bearing blocks\u003cbr\u003e\n✅ Low-noise, smooth operation\u003cbr\u003e\n✅ High-precision trajectory\u003cbr\u003e\n✅ Four-direction load capability with self-aligning\u003cbr\u003e\n✅ Strong bending resistance for rigid motion\u003cbr\u003e\u003c\/p\u003e \u003cp\u003e💡 What is a heavy-duty linear rail kit used for in CNC machines and automation projects?\nHere's a handy overview:\n1) Provides smooth, precise linear motion for CNC machines and 3D printers\n2) Supports multi-direction loads with self-aligning features for stability\n3) Reduces noise and improves reliability in automation setups \u003c\/p\u003e\n\u003c\/div\u003e","brand":"Amazon","offers":[{"title":"Default Title","offer_id":47902438162667,"sku":"VXB08BJZ1SVW","price":88.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/3268\/0683\/files\/71KtHRJKnHL.jpg?v=1772985109","url":"https:\/\/vxb.com\/products\/ultra-smooth-sbr12-300mm-1181-inch-linear-motion-r","provider":"VXB Bearings","version":"1.0","type":"link"}