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

1 These liner-motion bearings are made of high quality bearing steel for low noise and long service life 2 They are double sealed to avoid contaminants entering and save lubricant 3 Bearings have a 12mm inner diameter, a 21mm outer diameter, and a 30mm height 4 These are great for small hobby 12mm shaft/rod projects such as 3D printer, engraving machine 5 There comes total 10 pieces bearings which you may use for many different projects

What's in the box
1 x Linear Bearing