Linear Bearings, Flange Bearing, Joint Bearing manufacturer / supplier in China, offering Linear Rolling Bearing Accessories for Packaging Machines and Screen Printing Machines Lm4uu, Linear Ball Bearings Lm20uu 20mm*32mm*42mm Bearing Steel Long Life for CNC Router, Mechanical Parts for 3D Printers: Linear Ball Bearing Lm12uu 12mm*21mm*30mm Linear Bearing and so on.