MR684-ZZ Ball Bearing Double Shielded ID 4mm OD 9mm Width 4mmMR684 ZZ Deep groove ball bearings single row Radial Bearing 4x9x4 MR684 ZZ Deep groove ball bearings single row Radial Bearing 4 mm ID x 9 mm OD x 4 mm Wide. Item Sku : MR684 ZZ 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 Quantity