{"product_id":"two-pack-12mm-x-300mm-linear-guide-rails-set-chrom","title":"Two Pack 12mm x 300mm Linear Guide Rails Set Chrome Plated Steel Shafts for 3D Printers and DIY CNC Machines Dope Precision Linear Motion Rods With 0.05mm Tolerance and Chamfered Ends","description":"\u003cdiv\u003eTwo-Pack 12mm x 300mm Chrome Linear Guide Shafts\u003cbr\u003e\n✔️ 12mm dia x 300mm length, ±0.05mm tol, chrome plated\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eYou get two 12x300mm linear motion shafts made from 45# carbon steel. Chrome plating adds hardness and rust resistance (0.01-0.02 mm). Chamfered ends make installation easier and safer for fingers. Ideal for 3D printers, CNC machines, automated equipment, engraving, and injection molding setups.\u003c\/p\u003e ✅ Diameter: 12 mm (0.472 in) \u003cbr\u003e\n✅ Length: 300 mm (11.81 in) \u003cbr\u003e\n✅ Tolerance: ±0.05 mm \u003cbr\u003e\n✅ Material: 45# carbon steel \u003cbr\u003e\n✅ Surface: chrome plating 0.01-0.02 mm, Ra0.8 \u003cbr\u003e\n✅ Ends: chamfered on both ends for easy bearing install \u003cbr\u003e \u003cp\u003e💡 What is a linear motion shaft used for in motion systems?\u003c\/p\u003e\n\u003cp\u003eThey guide moving parts with precision, keeping alignment and reducing friction in equipment. Handy for CNC and 3D printer builds, and easy to upgrade in existing setups.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ehandy for a linear slide unit in CNC and 3D printer builds\u003c\/li\u003e\n\u003cli\u003eworks with standard 12 mm bearings for sealed ball bearing setups\u003c\/li\u003e\n\u003cli\u003eoffers rust resistance from chrome plating for long term use\u003c\/li\u003e\n\u003cli\u003eeasy to replace and upgrade in existing setups\u003c\/li\u003e\n\u003c\/ul\u003e \u003c\/div\u003e","brand":"Amazon","offers":[{"title":"Default Title","offer_id":48077204226283,"sku":"VXB0DRRBVYBX","price":49.93,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/3268\/0683\/files\/61rB0W3_b6L.jpg?v=1775856056","url":"https:\/\/vxb.com\/products\/two-pack-12mm-x-300mm-linear-guide-rails-set-chrom","provider":"VXB Bearings","version":"1.0","type":"link"}