2Pcs 16mm x 300mm 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 16mm x 300mm 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 designed for smooth, stable motion in precision mechanical systems. These rods are commonly used in 3D printers, CNC machines, engraving equipment, and automated machinery where stronger shaft support, straight travel, and reliable bearing contact are required. Pack size is 2 pieces.

✅ Pack size: 2 pieces
✅ Shaft diameter: 16 mm
✅ Shaft length: 300 mm
✅ Diameter tolerance: ±0.5 mm
✅ Material: C45 carbon steel
✅ Surface finish: chromium plated for improved wear resistance
✅ Case hardened outer layer for extended service life
✅ Designed for linear bearing and guided motion applications
✅ Commonly used in CNC, 3D printers, automation, and molding machines

Dimensions
Diameter 16 mm
Length 300 mm

💡 Why are case hardened chrome linear shafts used in heavier linear motion systems?
Case hardened chrome linear shafts are built to handle higher loads while keeping motion smooth and accurate over time.

• Hardened surface minimizes wear from linear bearings and bushings

• Chrome plating improves surface smoothness and corrosion resistance

• Maintains straightness and alignment under repeated sliding loads

• Ideal for precision linear guides in CNC machines and automated equipment

A handy choice when you need stronger linear shafting that delivers smooth motion, solid bearing support, and consistent performance in demanding precision builds.