MR684-2RS Ball Bearing Double Sealed ID 4mm OD 9mm Width 4mmMR684 2RS Deep groove ball bearings single row Radial Bearing 4x9x4 MR684 2RS Deep groove ball bearings single row Radial Bearing 4 mm ID x 9 mm OD x 4 mm Wide. Item Sku : MR684 2RS Brand : VXB Type : Deep groove ball bearings Inner (ID) : 4mm Outer (OD) : 9mm Width : 4mm Inner Inch : . 157 Inch Outer Inch : . 354 Inch Width Inch : . 157 Inch Size : 4mm x 9mm x 4mm Size Inch : . 157" x . 354" x . 157" Dynamic load : . 64 kN Static load : . 23 kN