{"product_id":"12mm-x-400mm-linear-motion-rods-set-of-2-for-cnc-3","title":"12mm X 400mm Linear Motion Rods Set Of 2 For CNC, 3D Printers, And DIY Projects Hardened Chrome Steel Shafts With HRC55-62 Tolerance, Smooth Low-Wear Guide Rails For High-Speed Motion And Precise Repeats","description":"\u003cdiv\u003e12mm x 400mm Linear Motion Rods for Precision CNC Shafts\u003cbr\u003e\n✔️ 12x400 mm, 45# steel, HRC55-62, chrome plated, 2-pack \u003cp\u003eThese hardened linear motion shafts deliver smooth, repeatable guidance for moving parts in CNC machines, 3D printers, robotics, and automation projects. Ideal for stabilizing X\/Y\/Z axes, retrofitting machines, or DIY gantries.\u003c\/p\u003e ✅ Material: 45# carbon steel\u003cbr\u003e\n✅ Hardness: HRC55-62\u003cbr\u003e\n✅ Surface roughness: Ra0.05-0.08\u003cbr\u003e\n✅ Chrome thickness: 0.01 mm\u003cbr\u003e\n✅ Diameter tolerance: -0.01 to -0.03 mm\u003cbr\u003e\n✅ Length tolerance: ±0.1 mm\u003cbr\u003e\n✅ Straightness: ≤0.1\/1000 mm\u003cbr\u003e\n✅ Finish: chrome plated, low friction\u003cbr\u003e\n✅ Size: 12 mm diameter x 400 mm length (2-pack)\u003cbr\u003e \u003cp\u003e💡 What is a common use for a 12 mm diameter linear motion rod in CNC and 3D printers?\u003c\/p\u003e\n\u003cp\u003eThese rods are handy for guiding precise motion on straight axes.\u003c\/p\u003e\n- Handy for CoreXY and Cartesian printer frame upgrades.\u003cbr\u003e\n- Useful in robotics and automation projects requiring repeatable motion.\u003cbr\u003e\n- Works with standard LM8UU bearings and linear rails for easy retrofits.\u003cbr\u003e \u003c\/div\u003e","brand":"Bearings Canada","offers":[{"title":"Default Title","offer_id":52804065067327,"sku":"VXB0F1TN28YN","price":76.13,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0887\/4750\/8031\/files\/613YmwgjEcL.jpg?v=1776455393","url":"https:\/\/bearingscanada.com\/products\/12mm-x-400mm-linear-motion-rods-set-of-2-for-cnc-3","provider":"Bearings Canada","version":"1.0","type":"link"}