4 Pack SBR20 UU Bearing Blocks For 20mm Open Sliding Blocks On SBR20 Linear Motion Shafts CNC Rails Kit Aluminum Alloy Heavy Duty Upgrade With Pressure Plate Built For Ultra Smooth Precise DIY CNC Builds
These SBR20UU blocks pair with 20mm linear rails to create a reliable linear motion kit for DIY CNC builds, printers, and automation projects.
✅ 4 x SBR20UU sliding blocks fit 20mm rails (0.79 in) for CNC machines
✅ Aluminum alloy housing with bearing steel core for durability
✅ Pressure plate keeps bearing balls locked for stable, precise motion
✅ M6 x 12mm mounting holes for quick, easy installation
✅ Smooth, quiet operation compatible with linear rails kits
💡 What is a reliable way to use SBR20UU bearing blocks with 20mm rails in DIY CNC builds?
It's a handy setup for smooth, precise linear motion.
- Use with aligned rails for straight travel
- Pair with a pressure plate to reduce backlash
- Mount using M6x12 hardware for solid setup
- Ideal for hobby CNC, 3D printers, and automation projects