4 Pack SBR12UU Slide Block Kit For 12mm Linear Guide Rail, Square Type Carriage Bearing Blocks With Precision Bearings, Heavy Duty Steel Construction, Fits SBR12 Guides, Great For CNC, 3D Printing, And Motion Projects

4-Pack SBR12UU slide blocks for 12mm rails
✔️ 4-pack slide blocks with 12mm bore, precision bearings, aluminum housing

These SBR12UU open linear motion bearing slide units are designed to ride on 12mm linear guide rails, delivering smooth, accurate motion for CNC machines, 3D printers, and automation projects.

✅ Includes 4x SBR12UU slide blocks with 12mm bore (0.47")
✅ Compatible with SBR12 12mm linear guide rails
✅ Aluminum housing, steel bearings, chrome plating for rust resistance
✅ Block size 39mm L x 41mm W x 28mm H (1.54" x 1.61" x 1.10"), inner bore 12mm (0.47")

💡 What is a pillow block bearing used for in motion systems?

These handy fixtures support rotating shafts in compact machinery, keeping alignment and reducing vibration.

- handy for CNC, 3D printers, and automation projects
- improves straight-line motion and rigidity
- pairs with 12mm linear guides for smooth travel
- simple maintenance and bearing replacement for longer life