4 Pack SBR20UU Aluminum Block 20mm Linear Motion Ball Bearing Slide Block For SBR20 20mm Linear Guide Rail Built Tough Aluminum Alloy And Steel Construction Delivers Smooth Low Friction Movement 1.9 Inch By 2 Inch By 1.5 Inch

Four-pack aluminum SBR20UU blocks for 20mm rails
✔️ Four-pack aluminum SBR20UU blocks, 20mm guide rail compatible

These 20mm SBR20UU aluminum block bearing slides are heavy-duty linear motion components built from aluminum alloy and bearing steel. They deliver smooth, low-friction movement on SBR20 rails for use in CNC machines, 3D printers, automation stations, and other compact motion systems.

✅ Shaft diameter 20 mm; overall size 1.9 in x 2.0 in x 1.5 in (48.3 mm x 50.8 mm x 38.1 mm)
✅ Aluminum alloy body with steel bearings for durability
✅ UU ball bearing style provides smooth, low-friction travel
✅ Pack of 4 blocks for multi-axis setups
✅ Compatible with SBR20 rails and standard mounting holes

💡 What is a 20 mm linear bearing block used for in rail systems? These blocks are handy for enabling smooth, guided motion in compact machines and automation setups. - Handy for CNC machines, 3D printers, and other 20 mm rail projects - Improves alignment precision and repeatable motion across axes - Easy mounting on SBR20 rails with 4-pack consistency - Ideal for multi-axis rigs and quick replacement of worn blocks