Enhance the precision and durability of your CNC projects with this high-quality Linear Slide Rail Shaft and Bearing Block set. Crafted from premium materials, this set is designed to provide smooth, accurate linear motion for applications such as CNC routers, mills, and lathes. The combination of a high carbon steel rail shaft and an aluminum alloy bearing block ensures exceptional strength and long-lasting performance. Key Features: · Premium Materials: The linear slide rail shaft is made from high-quality carbon steel, offering superior hardness and wear resistance, while the bearing block is constructed from durable aluminum alloy for enhanced sturdiness. · Industrial-Grade SBR Block: Equipped with a high-precision linear bearing inside the industrial-standard SBR block, delivering smooth and reliable movement with minimal friction. · Surface Silver Plating: The rail shaft features a silver plating treatment that provides an attractive finish, excellent anti-rust protection, and a hardness rating up to HRC62, ensuring extended durability. · Adjustable Tightness: The included adjusting handle allows for precise control over the slider tightness, enabling optimal performance and reduced play during operation. · Standardized Processing: Manufactured with precise and standardized dimensions, this set is ideal for accurate guide rail positioning in various machining and DIY projects. · Easy Installation: The aluminum alloy support rail includes pre-drilled holes for straightforward mounting, saving time and effort during setup. Specifications: · Material: High Carbon Steel (Rail Shaft), Aluminum Alloy (Bearing Block) · Model: SBR12 · Rail Shaft Length: 400mm (15.75 inches) · Rail Shaft Diameter: 12mm (0.47 inches) · Block Inner Diameter: 12mm (0.47 inches) · Block Outer Diameter: 40mm (1.57 inches) · Weight: 1900g Package Includes: · 2 x Linear Slide Rail Shafts · 4 x Bearing Slide Blocks This Linear Slide Rail Shaft and Bearing Block set is a reliable and precise solution for enhancing the accuracy and stability of your CNC machinery and other linear motion applications. Its robust construction and thoughtful design make it an essential component for both professional and hobbyist use.