2Pcs 12mm x 350mm 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 350mm 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, accurate motion in compact to mid-length mechanical builds. These rods are commonly used in 3D printers, CNC machines, engraving setups, and automated equipment where straight travel and reliable bearing contact are important. Pack size is 2 pieces.

✅ Pack size: 2 pieces
✅ Shaft diameter: 12 mm
✅ Shaft length: 350 mm
✅ Diameter tolerance: ±0.5 mm
✅ Material: C45 carbon steel
✅ Surface finish: chromium plated for better wear resistance
✅ Case hardened outer layer for longer 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 350 mm

💡 Why are case hardened chrome linear shafts used in precision linear motion systems?
Case hardened chrome shafts are built to keep motion smooth and accurate under continuous sliding contact.

• Hardened surface reduces wear from linear bearings and bushings

• Chrome plating improves smooth travel and resistance to surface damage

• Maintains straightness and alignment during repeated motion cycles

• A solid choice for linear guides in CNC machines and automated assemblies

A handy option when you need dependable linear shafting that delivers smooth movement, strong bearing support, and consistent performance in precision motion setups.