LM8UU Linear Bearings 4Pcs LM8UU Linear Ball Bearings 8mm Bore Dia 15mm OD 3D Printer CNC Bearing Linear Motion Ball Bearing Bushing Sealed on Both Side Snapklik.co : ELIFE 12PCS L8UU Linear Ball Bearings, 8 Bore Dia Linear otion Bushing Smooth moving, low friction, high rigidity and long working life SIZE] - Model: LM8UU, 8x15x24mm Metric Double Seal Linear Bearing [USAGE] - Linear bearings are part of linear motion systems, often used in conjunction with cylindrical shafts or guideways 1., Uxcell provides LMUU series Linear Ball Bearing with seals on both side to prevent ingress of dirt, water and foreign matter., 2., Linear Motion Bearing (also called Ball Bushing or Shaft Guiding) is a rolling friction supporting element that usually used for linear motion mechanical parts with small friction., 3., Coordinate with Linear Motion Shaft, recirculating balls provide unlimited stroke at low friction movement, permit temperature within 80 degree Celsius., 4., It is great for 3D printer, CNC, and other applications., Specification:Bearing No. Linear axis ball bearing LM6UU LM8UU LM10UU LM12UU LM13UU LM16UU LM20UU LM25UU 6mm 8mm10mm 12mm Suitalbe for kinds of electronic equipment/guide bar, drive shaft, and pillar