12 Pcs LM8UU Linear Ball Bearings, 8mm Bore Dia, 15mm OD, 24mm Length with Double Side Rubber Seal Great for CNC, 3D Printer

12 Pcs LM8UU Linear Ball Bearings, 8mm Bore Dia, 15mm OD, 24mm Length with Double Side Rubber Seal Great for CNC, 3D Printer

Linear Motion Guide, FEYRINX 2PCS 12mm x 400mm (.472 x 15.75 inches) Case Hardened Chrome Linear Rail Rod Shaft for 3D Printer, DIY, CNC - Metric h8 Tolerance

Iverntech NEMA 17 Stepper Motor with Integrated 150mm T8 Lead Screw for RepRap Prusa i3 3D Printers Z Axis or CNC Machine