Advantage:Made of C45 carbon steel, surface chromium plating, high hardness, rust-resistant and corrosion-resistant, sturdy and durable.The chamfer on both ends of our linear motion shaft serves a dual purpose. Makes it easier to install linear bearings but also ensures that fingers safe.Taking the role as round steel shaft with linear support blocks and closed-type slide units. Designed for high speed, low noise, and high precision equipment.Widely applied in CNC machine, 3D printer, automatic machine, molding machine, engraving machine, etc.Specification:Material: C45# carbon steelColor: SilverOuter Diameter: 8mm/0.315inchesLength: 370mm/14.57 inchesPackage Included: 2pcs x Linear Motion Shaft .
eBay