LMF12UU Linear Ball Bearing for 12mm Shafts with Sealed Rubber Seals, 12mm Inner Diameter, 21mm Outer Diameter, and 30mm Length, High Precision Low Friction Linear Motion Bearing for CNC Machines and 3D Printers

The LMF12UU linear ball bearing is a compact, sealed bearing designed for smooth, low-friction motion on 12 mm shafts. It’s commonly used in CNC guides, 3D printers, and compact linear actuator assemblies.

✅ Inner diameter 12 mm, outer diameter 21 mm, length 30 mm
✅ Rubber seals built-in for dust and moisture protection
✅ Dynamic load rating Cr 510 N, static load rating Cor 784 N
✅ Fits 12 mm shafts, single-pack bearing

💡 What is a pillow block bearing used for in compact motion systems? This handy component supports shafts and keeps them aligned for smooth, precise travel. - For CNC guides and 3D printers - For reducing shaft wobble and wear in linear motion systems - For dust- and moisture-protected operation with rubber seals