Four Pack 20mm Linear Bearing Slide Blocks For 3D Printers And CNC Machines Aluminum Linear Rail Bushing Blocks With Mounting Holes High Load Capacity Smooth Motion DIY Pros

Four-Pack 20mm Linear Bearing Slides for CNC & 3D Printers
✔️ SC20UU 20mm bore; blocks 54mm x 50mm x 41mm with M6 holes, 4-pack

These four SC20UU aluminum blocks are designed for smooth, high-load linear motion along rails, making them ideal for DIY CNC machines and 3D printers that demand reliable, consistent movement.

✅ Inner diameter 20 mm (0.79 in) LM20UU compatible
✅ Block size 54 mm x 50 mm x 41 mm (2.13 in x 1.97 in x 1.61 in)
✅ Mounting hole size M6 for easy attachment
✅ Dynamic load rating 882 N, static rating 1370 N
✅ Four-pack includes four aluminum sliding blocks
✅ Oxidation-treated aluminum alloy for durability

💡 What is a 20mm linear bearing block used for in motion control applications? A handy overview for DIY setups.
- Smooth, low-friction motion along rails
- High-load support for precise positioning
- Easy mounting with standard M6 holes