20mm By 300mm Heavy Duty Hardened Chrome Plated Steel Linear Motion Shaft Guide For 3D Printers And CNC Machines Ultra Smooth Rail Rod Built Tough With High Precision Durability And Low Friction For Smooth Motion

High-Precision 20mm x 300mm Linear Shaft for CNC
✔️ Single shaft, chrome-plated C45 steel, 58-64 HRC, 0.1/1000mm

This heavy-duty 20x300 mm linear motion shaft is a hardened, chromium-plated steel rail designed to guide moving components in CNC machines, 3D printers, robotics, and engraving systems. It pairs with linear support blocks and enclosed sliders to deliver stable, precise motion.

✅ Diameter 20 mm, length 300 mm, straightness under 0.1/1000 mm
✅ Material: C45 carbon steel with high-frequency quenching and chromium plating for durability and corrosion resistance
✅ Hardness: 58-64 HRC for long wear life
✅ Compatible with linear support blocks and enclosed sliders for precise motion
✅ Pack size: 1 shaft

💡 What is a typical use for a precision linear shaft in automation and manufacturing? Handy for guiding moving parts and ensuring smooth, precise motion.
- Handy for CNC machines, 3D printers, and robotics.
- Maintains alignment and reduces wear with proper bearings and blocks.
- Durable chrome-plated steel stands up to tough environments.