6306-2Z Ball Bearing Double Shielded ID 30mm OD 72mm Width 19mm Outer Diameter - 38.885mm the NJ321MY inner diameter is

the NJ321MY inner diameter is 105mm

RMS5-2RS outer diameter is 1 13/16" inch and the RMS5-2RS width is 5/8" inch

low friction

single row

FHSPW205-15G Pillow Block Cast Iron Light Duty Ball Bearing

6306-2Z Ball Bearing Double Shielded ID 30mm OD 72mm Width 19mm Outer Diameter - 38.885mm the NJ321MY inner diameter is6306 2Z Deep groove ball bearings single row Radial Bearing 30x72x19 6306 2Z Deep groove ball bearings single row Radial Bearing 30 mm ID x 72 mm OD x 19 mm Wide. Item Sku : 6306 2Z Brand : VXB Type : Deep groove ball bearings Inner (ID) : 30mm Outer (OD) : 72mm Width : 19mm Inner Inch : 1. 181 Inch Outer Inch : 2. 835 Inch Width Inch : . 748 Inch Size : 30mm x 72mm x 19mm Size Inch : 1. 181" x 2. 835" x . 748" Dynamic load : 29. 6 kN Static load : 16