2-20PCS LM13UU LM13LUU 13mm LM13 UU LUU ABEC-9 Precision Linear Motion Bushing Double Seal Bearing for CNC 3D Printer AutomationHome Improvement > Hardware7,71 $ (≈ 6,34 CHF)8,82 $Auf LagerSold by AliExpress WWZum Shop