Linear Motion Rods 2 Pack 8mm x 400mm Case Hardened Chrome Plated Guide Rods For 3D Printer CNC And DIY Projects With Ultra Smooth Surface Finish And Metric H8 Tolerance

Dual 8mm x 400mm Chrome Linear Guide Rods, 2 Pack for CNC
✔️ 2 pcs, 8mm dia x 400mm length, case-hardened chrome, HRC 57-62

These high-precision linear motion shafts are designed to guide moving parts with minimal resistance in CNC machines, 3D printers, and DIY rigs. They feature chrome-plated, mirror-polished surfaces for smooth travel and long life.

✅ 8mm diameter, 400mm length, tolerance -0.005 to -0.03mm
✅ Chrome plating 10-20um, hardness 57-62 HRC
✅ Case-hardened steel for durability and corrosion resistance
✅ Chamfered ends for easy bearing installation
✅ Includes 2 shafts in a protective pack

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

It acts as a precise guide for moving parts, delivering smooth, straight travel.

- guiding carriages along X, Y, Z axes - reduces play and wear with hardened steel and chrome plating - compatible with standard 8mm bearings and blocks