4 Pack 8mm By 200mm Linear Motion Rods Hardened Chrome Plated Rails For 3D Printer CNC DIY Ball Bearing Steel Shaft With HRC50 Hardness And Rust Resistant Coating

4-Pack 8mm x 200mm Hardened Chrome Linear Rods
✔️ Diameter 8mm; Length 200mm; HRC50 steel; rust-resistant chrome

These 4 pieces of 8mm diameter, 200mm long linear motion rods are built from bearing steel and chrome plated to deliver durable, smooth motion in compact spaces. They’re commonly used in 3D printers, CNC machines, and automated equipment where precise linear guidance is essential.

✅ Diameter: 8mm (0.31")
✅ Length: 200mm (7.87")
✅ Material/finish: bearing steel with chrome plating; HRC50 hardness; anti-rust coating
✅ Tolerances: Length +1~2 mm; Diameter -0.02 mm
✅ Chamfered ends for easy installation
✅ Pack size: 4 pieces

💡 What is a handy use case for 8mm linear motion rods in DIY CNC setups?

These rods are handy for providing smooth, precise motion in compact machines.

- 8mm diameter (0.31") standard fit for common brackets and bearings - 200mm length suitable for small to mid-size printers and routers (7.87") - HRC50 hardened steel with chrome plating for long wear and low maintenance✝️