Two 4mm By 300mm Chrome Plated Linear Motion Rods For 3D Printer And CNC DIY Projects Pro Grade Case Hardened Steel Shafts With Tight H8 Tolerance And Ultra Smooth Chrome Finish For Precise Motion
✔️ 2Pcs 4mm x 300mm chrome plated steel rods HRC55-62
These chrome plated linear motion rods are precision ground from 45# carbon steel for use in CNC machines, 3D printers, and automation equipment.
✅ 2Pcs 4mm x 300mm chrome plated linear rods
✅ Material: 45# carbon steel, hardness HRC55-62
✅ Surface roughness Ra 0.05-0.08, straightness ≤0.1/1000mm
✅ Chrome plating thickness ~0.01mm; diameter tolerance -0.01 to -0.03mm
✅ Length tolerance ±0.1mm; chamfered ends C1.0-45°
✅ Color: Silver; suitable for CNC, 3D printers, engraving machines, etc.
💡 What is a linear motion rod used for in precision CNC and 3D printer setups?
This handy component provides straight, smooth motion for moving parts.
- Guides moving components with tight tolerance for accurate motion
- 4mm diameter x 300mm length fits many DIY CNC and 3D printer builds
- Chrome plated finish offers wear resistance and smoother surface
- Chamfered ends on C1.0-45° assist with safe handling and easy assembly