2 Pack SBR12UU Linear Bearing Block For 12mm Open Slide Guides Aluminum Long Block For SBR12 Linear Motion Shafts And Rails Perfect For 3D Printers CNC Routers DIY Projects Silver Tone Heavy Duty And Smooth Operation

Two-Pack SBR12UU Bearing Blocks for 12mm Linear Guides
✔️ Aluminum SBR12UU long bearing blocks, 2-pack, includes 4 wrenches

These aluminum long bearing blocks are designed for SBR12 linear guide rails with a 12 mm bore. They deliver sturdy support and smooth motion for DIY machines like 3D printers, CNC routers, and robotics builds, with simple mounting on frames using standard holes.

✅ Material: aluminum alloy for strength and smooth operation.
✅ Inner diameter: 12 mm to fit 12 mm bearings with minimal play.
✅ Mounting holes: 4 mm holes for secure frame attachment.
✅ Size: total 38.8x38x28 mm / 1.53x1.50x1.10 in; compact and sturdy.
✅ Includes 2 bearing blocks and 2 wrenches for quick setup.

💡 What is a bearing block used for in linear motion systems? These blocks hold and align compact bearings to create a stable moving axis. - supports 12 mm bearings in linear guide setups with stable alignment. - keeps bearings in the correct position to minimize friction and wear. - enables compact, sturdy axes for printers, CNCs, and robotics.