{"product_id":"nb-linear-systems-sn8-8mm-shaft-42","title":"NB SN8 8mm Shaft 42 inch Length - Linear Motion","description":"\u003cp\u003e\u003cstrong\u003eNB Linear Shaft - Heat Treated SN8 Slide Shaft\u003c\/strong\u003e\u003cbr\u003e✔️ 8mm Diameter x 42\" Length - NB Linear Systems\u003c\/p\u003e\n\u003cp\u003eThis SN8 linear shaft from NB Linear Systems features a precision-ground 8mm diameter and a full 42\" length. Built for smooth linear motion, each shaft is heat-treated and case hardened for long-lasting performance in automation and mechanical setups.\u003cbr\u003e\u003cbr\u003e⚠️ \u003cstrong\u003eImportant Notes:\u003c\/strong\u003e\u003cbr\u003e🔵 We do \u003cstrong\u003enot\u003c\/strong\u003e offer international shipping\u003cbr\u003e🔵 All NB shafts require \u003cstrong\u003eapproximately one week\u003c\/strong\u003e to ship\u003cbr\u003e🔵 \u003cstrong\u003eNo returns\u003c\/strong\u003e accepted for this item\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e✅ Diameter: 8mm\u003cbr\u003e✅ Length: 42 inches\u003cbr\u003e✅ NB Linear Systems quality shaft\u003cbr\u003e✅ Case hardened for wear resistance\u003cbr\u003e✅ High-frequency induction hardened surface\u003cbr\u003e✅ Uniform hardness depth for consistent durability\u003cbr\u003e✅ Ideal for use with linear bearings and guide blocks\u003c\/p\u003e\n\u003cp\u003e💡 \u003cstrong\u003eWhy are linear shafts heat treated?\u003c\/strong\u003e\u003cbr\u003eHeat-treated linear shafts gain surface hardness for better wear resistance, reducing friction and extending their service life in linear motion systems. This is essential for applications requiring precision and long-term durability.\u003c\/p\u003e\n\u003cp\u003eBuilt for serious motion control  -  ideal for CNCs, robotic arms, and precision guiding systems.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"NB","offers":[{"title":"Default Title","offer_id":49310154358977,"sku":"Kit16039","price":139.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/0955\/3089\/files\/nb-linear-systems-sn8-8mm-shaft-42-inch-length-linear-motion-vxb-ball-bearings_457787d1-63b0-4cb5-abe4-b6a9b9c6c497.jpg?v=1748646770","url":"https:\/\/smallbearings.com\/zh\/products\/nb-linear-systems-sn8-8mm-shaft-42","provider":"Small Bearings","version":"1.0","type":"link"}