8Mm x 500Mm Linear Motion Rods Shaft Set Of 2 For CNC Machining And High Speed 3D Printing, Pro Grade 45 Grade Carbon Steel, Hardened To HRC55-62, Wear Resistant And Corrosion Resistant, Smooth, Repeatable Precision

High-Precision 8mm x 500mm Linear Motion Rods, Set of 2 for CNC ✔️ 45# carbon steel, hardened to HRC55-62, chrome-plated finish

These 8mm x 500mm linear motion rods are built for smooth, repeatable travel in CNC machines, high-speed 3D printers, robotics, and automation systems. They are commonly used to build or upgrade linear slide units, providing precise guidance and long service life.

✅ 8 mm diameter, 500 mm length, metric h8 tolerance
✅ Material: 45# carbon steel, case-hardened surface
✅ Hardened to HRC55-62 for wear and deformation resistance
✅ Chrome plating 0.01 mm; Ra0.05-0.08 roughness for smooth motion
✅ Straightness ≤ 0.1 mm per meter; diameter tolerance -0.01 to -0.03 mm
✅ Compatible with LM8UU bearings, linear rails, and other motion components

💡 What is a 8mm linear motion rod used for in CNC machines and 3D printers?

- Handy for stabilizing X/Y axes in CoreXY, Cartesian, or Delta printers
- Handy for reinforcing Z-axis guides in CNC milling and laser engraving
- Keeps motion smooth when paired with LM8UU bearings and linear rails
- Great for DIY projects, robotics, sliders, and automation setups
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