uxcell LM4UU Linear Ball Bearings 4mm Bore 8mm OD 12mm Length for CNC Machine 3D Printer 4pcs

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.: LM4UU Bearing Ball Meterial: Chromium Steel Outer Shell Meterial: Chromium Steel Cage Meterial: Nylon Nominal Shaft Diamter (dr): 4mm Outer Diameter (D): 8mm Total Length (L): 12mm Ball Circuit: 4 Static Load Capacity (Cor): 0.108kN Dynamic Load Capacity (Cr): 0.0882kN Number of Pack: 4 Pcs