Two Pack 16mm By 400mm Linear Motion Rods For 3D Printers CNC DIY Chrome Case Hardened Shaft Rails With Ra 0.05 Finish Pro Grade Hardness And Precise Tolerance Smooth Glide For Accurate Motion
✔️ Chrome plated, hardened steel rod with Ra0.05-0.08 and tolerance
This two-rod set includes 2 pieces of 16mm x 400mm linear motion rods designed for CNC machines and 3D printers. They serve as high-precision guide rails that enable smooth, accurate linear motion in automation, engraving, and machine tooling applications.
✅ 2 pcs per pack: 16mm (0.63 in) diameter x 400mm (15.75 in) length
✅ Material: 45# carbon steel, hardness HRC55-62
✅ Surface: chrome plated, roughness Ra0.05-0.08
✅ Straightness: ≤0.1/1000 mm; diameter tolerance -0.01 to -0.03 mm
✅ Length tolerance: ±0.3 mm; ends chamfered C1.0-45° for easy assembly
💡 What is a 16mm x 400mm linear motion rod used for in CNC machines and 3D printers? This handy guide breaks down typical uses and why this rod matters. - Used as a precision guide rail for smooth, accurate motion in automation
- Chrome plated surface reduces wear and promotes longevity
- Key tolerances: diameter -0.01 to -0.03 mm; length ±0.3 mm
- Straightness ≤ 0.1/1000 mm and chrome thickness about 0.03 mm