High performance 3 8 flanged ball bearing Mf.FR,F67,F68,F69 Bore Size: 1 - 20 mm Outside Diameter: 3 - 50 mm Model Number: Mf.FR,F67,F68,F69.Single Row Shield: Open,Teflon Sealed,Rubber Seals Retainer: PTFE, Nylon, PEEK Or Stainless Steel Lubrication: Oil,grease,dry Application: Domestic,Electric Motor... Noise Level: from 3mm to 30mm 1.High Performance,Long life 2,Competitive price  4,3 8 flanged ball bearing 3 8 flanged ball bearing10mm