{"product_id":"20mm-shaft-32-hardened-rod-linear","title":"20mm Linear Motion Shaft - 32\" Length Steel Rod - Precision Ground","description":"\u003ch3\u003e\u003cstrong\u003e20mm Diameter Linear Motion Shaft - 32\" Length - Precision Ground Steel Rod for CNC \u0026amp; Automation\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThis \u003cstrong\u003e20mm diameter linear motion shaft\u003c\/strong\u003e, measuring \u003cstrong\u003e32 inches long\u003c\/strong\u003e, is a \u003cstrong\u003eprecision-ground steel rod\u003c\/strong\u003e designed for smooth and accurate motion in \u003cstrong\u003eCNC machines, 3D printers, robotics\u003c\/strong\u003e, and other automation systems. Engineered from \u003cstrong\u003ehardened, high-strength steel\u003c\/strong\u003e, this shaft offers \u003cstrong\u003eexceptional straightness, durability, and wear resistance\u003c\/strong\u003e, even under continuous use and load-bearing conditions.\u003c\/p\u003e\n\u003cp\u003eIts \u003cstrong\u003epolished, low-friction surface\u003c\/strong\u003e allows for seamless linear bearing travel, making it a go-to solution for systems that demand \u003cstrong\u003etight tolerances and repeatable performance\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e🔧 \u003cstrong\u003eProduct Specifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cp\u003e✅ \u003cstrong\u003eType\u003c\/strong\u003e: Linear Motion Shaft \/ Steel Rod\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e✅ \u003cstrong\u003eDiameter\u003c\/strong\u003e: 20mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e✅ \u003cstrong\u003eLength\u003c\/strong\u003e: 32 inches (approx. 812.8mm)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e✅ \u003cstrong\u003eMaterial\u003c\/strong\u003e: Hardened \u0026amp; Ground Steel\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e✅ \u003cstrong\u003eFinish\u003c\/strong\u003e: Polished, Precision Ground\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e✅ \u003cstrong\u003eTolerance\u003c\/strong\u003e: Suitable for linear bearings (e.g., LM20UU)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e✅ \u003cstrong\u003eApplication\u003c\/strong\u003e: CNC Machines, 3D Printers, Linear Slides, Automation Rails\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e✅ \u003cstrong\u003eQuantity\u003c\/strong\u003e: 1 Shaft\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e💡 \u003cstrong\u003eCustomer Tip - Why is a precision-ground shaft important for linear motion systems?\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eAnswer:\u003c\/strong\u003e Precision-ground shafts provide uniform diameter and surface smoothness, ensuring stable, low-friction travel for linear bearings. This reduces vibration, improves accuracy, and extends the lifespan of both the shaft and the bearing.\u003c\/p\u003e\n\u003cp\u003e⚙️ \u003cstrong\u003eChoose this 20mm x 32\" linear shaft when your project demands rigidity, accuracy, and long-term motion control in industrial or DIY builds.\u003c\/strong\u003e\u003c\/p\u003e","brand":"VXB","offers":[{"title":"Default Title","offer_id":49310028464321,"sku":"Kit11961","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/0955\/3089\/files\/20mm-shaft-32-hardened-rod-linear-motion-vxb-ball-bearings_9fb3962a-15fe-429d-9c70-7aae769c62b0.jpg?v=1748646745","url":"https:\/\/smallbearings.com\/zh\/products\/20mm-shaft-32-hardened-rod-linear","provider":"Small Bearings","version":"1.0","type":"link"}