Two Pack LM40UU Linear Ball Bearings 40Mm Inner Diameter 60Mm Outer Diameter Steel Linear Motion Bushings For 3D Printers, CNC Routers, Engraving Machines, And DIY Motion Projects

LM40UU 40mm ID Linear Bearings, 2-Pack for CNC & 3D Printers ✔️ 40mm ID, 60mm OD, 80mm width, steel linear bearings pack of 2

Two-pack LM40UU linear ball bearings deliver smooth, precise axial motion for 40mm rail systems. They’re a staple in 3D printers, CNC routers, engraving machines, and DIY motion projects to minimize friction and maintain accuracy over time.

✅ 40mm inner diameter (ID)
✅ 60mm outer diameter (OD)
✅ 80mm width
✅ Steel bearing material with heat-treated durability
✅ Pack of 2 bearings included

💡 What is a linear bearing used for in precision motion control?

These handy devices guide moving parts with low friction for smooth, accurate motion.

- Provides guided motion along precision rails
- Reduces wear and increases tool life with proper lubrication
- Handy for 3D printers, CNC routers, engraving machines, and automation projects