2Pcs 12mm x 530mm Linear Rail Rod Shafts, case hardened chrome plated C45 carbon steel linear motion guides with smooth bearing support, accurate diameter and length tolerance for CNC, 3D printers and automated machinery

2Pcs 12mm x 530mm Chrome Linear Rail Rod Shaft for Motion Systems
✔️ Case Hardened Linear Shaft Guide for 3D Printers and CNC

This is a set of case hardened linear rail rod shafts made for smooth and stable motion in precision mechanical setups. These rods are commonly used in 3D printers, CNC machines, engraving systems, and automated equipment where straight travel and consistent bearing contact are critical. Pack size is 2 pieces.

✅ Pack size: 2 pieces
✅ Shaft diameter: 12 mm
✅ Shaft length: 530 mm
✅ Diameter tolerance: ±0.5 mm
✅ Material: C45 carbon steel
✅ Surface finish: chromium plated for better wear resistance
✅ Case hardened outer layer for long service life
✅ Designed for linear bearing and guided motion use
✅ Commonly used in CNC, 3D printers, automation, and molding machines

Dimensions
Diameter 12 mm
Length 530 mm

💡 Why are case hardened chrome linear shafts used in precision linear motion systems?
Case hardened chrome shafts are built to deliver smooth travel while holding accuracy under continuous sliding loads.

• Hardened surface helps reduce wear from linear bearings and bushings

• Chrome plating improves surface smoothness and corrosion resistance

• Maintains straightness and alignment over repeated motion cycles

• Well suited for linear guides in CNC machines and automated assemblies

A handy choice when you need durable linear shafting that keeps motion smooth, stable, and accurate in longer travel mechanical builds.