Rolling bearings – Plummer block housings for rolling bearings of diameter series 2 with cylindrical bore
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 06/01/2011

Rolling bearings; plummer block housings for rolling bearings of diameter series 2 with cylindrical bore
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 11/01/1984