Machifit 4pcs SC20UU 20mm Solid Polymer Linear Bearing Slide Bushing For CNC

Description Machifit 4pcs SC20UU 20mm Solid Polymer Linear Motion Bearing Slide Bushing for CNCSpecification Material Solid Polymer AluminumModel SC20UUInner Diameter 20mmSingle Weight 640gQuantity 4pcApplication For 3D Printer CNCFeatures 1 New solid polymer material lightweight good wear resistance and strength more stable 2 Perfect to replace the traditional linear motion ball bearing not easy to be stuck 3 No oil needed Self lubricating Dust proof 4 Improve them efficiency and save energy 5 Widely used in home appliances industrial low noise and high speed electric motors construction machinery automotive components pumps and machinery Smooth moving low friction high rigidity and long life Economical easy to maintain replace Package Included 4x SC20UU Solid Polymer Linear Motion Ball BearingMore Details