10pcs LM12UU 12mm Linear Motion Ball Bearing Bushing for 12mm Rod 3D Printer CNC Parts

Features: These liner motion bearings are made of high quality bearing steel for low noise and long service life. They are double sealed to avoid contaminants entering and save lubricant. Bearings have a 12mm inner diameter, a 21mm outer diameter, and a 30mm height. These are great for small hobby 12mm shaft rod projects such as 3D printer, engraving machine. There comes total 10 pieces bearings which you may use for many different projects. Specifications: Type: LM12UU Material: Bearing steel Inner Diameter: 12mm 0.47 Outer Diameter: 21mm 0.83 Height: 30mm 1.18 Quantity: 10pcs Package Includes: 10 x Bearings .