20mm Linear Motion Rods, 2pcs Solid Chrome Plated Steel Shafts 331mm Length for CNC, 3D Printer, DIY Projects, Smooth Linear Rail Guide with High Hardness for Automation, Engraving & Model Builds

20mm Solid Linear Motion Rod Shaft Set for CNC and DIY Projects
✔️ Chrome Plated Linear Guide Rods 331mm Length Pack of 2

These solid linear motion rods are designed to guide smooth and stable linear movement in CNC machines, 3D printers, and DIY mechanical builds. Made from hardened steel with a chrome plated surface, they are a handy choice for projects that need strength, wear resistance, and consistent motion. Pack size includes two matching linear guide rods.

✅ Pack size: 2 pieces linear motion rod shafts
✅ Rod diameter: 20mm 0.79 inch
✅ Rod length: 331mm 13.03 inch
✅ Material: 45 steel with hard chrome plating
✅ Surface hardness: approximately HRC58 to HRC60
✅ Solid shaft design for high load linear motion systems
✅ Smooth low friction surface for stable and quiet travel
✅ Rust, corrosion, and wear resistant finish
✅ Suitable for CNC machines, 3D printers, engraving machines, and DIY builds

Dimensions
Rod Diameter 20mm 0.79 inch
Rod Length 331mm 13.03 inch

💡 What are hardened chrome plated linear rods used for in linear motion systems?
Hardened linear rods are a core component in precision linear guidance setups where durability and smooth travel matter.

• Case hardened steel shafts handle repeated motion under load without surface wear

• Chrome plated linear rods reduce friction and help bearings glide smoothly

• Solid linear guide rods are commonly used in CNC, 3D printers, and automation frames

These linear motion rods are a solid pick when you need smooth travel, strong load support, and reliable performance for precision machines or custom DIY motion projects.