21mm 22mm 23mm 24mm 25mm 26mm 27mm 28mm Outside Diameter OD 2mm Thickness Black Brown FKM Fluororubber Seal Washer O Ring Gasket - AliExpress
MAEDLER deep groove ball bearing single row inner diameter 15mm outer diameter 28mm width 7mm shielded on both sides SKU: 61902-ZZ-MAE - Maedler North America