Two Pack 8mm By 800mm Hardened Chrome Linear Rail Shafts For 3D Printers CNC Machines And DIY Projects Precision Guide Rails With Case Hardened 55 To 60 HRC Chrome Plated Metric H8 Tolerance
These two 8mm x 800mm linear motion shafts provide precise guidance for CNC machines, 3D printers, and DIY automation projects. Made from case-hardened steel with chrome plating, they resist wear and corrosion for long-lasting performance.
✅ 8mm diameter, 800mm length
✅ diameter tolerance -0.005 to -0.03mm (7.995-7.970mm)
✅ length tolerance ±0.5mm (799.5-800.5mm)
✅ chrome plating 10-20µm, case hardness 55-60 HRC
✅ material: C45 steel, corrosion resistant
✅ pack: 2 shafts
💡 What is a linear rail shaft used for in precision motion assemblies? Handy guide shaft that supports smooth, accurate linear movement in CNC machines, 3D printers, and automation setups.
- provides straight travel for carriages and blocks
- chrome-plated, case-hardened steel for durability
- available in 8mm x 800mm size for common setups
- used with bearing blocks and slide units for low-friction motion