FLANGE BLADE HUB MOUNTING BRACKET FOR 30" ROTARY MOWER TRACTORS COMPLETE WITH BEARINGS COMPATIBLE TO MODELS: 30503X11 30505X92A 30576X10D 30544X92D 30577X8A 30577X31B 31720X11 31720X51C 31722X95A MURRAY Height to top edge: 57.6 mm Height to bottom edge: 13.2 mm Diameter: 154 mm CODE: 22-448 100033 ORIGINAL CODE: 455962 - 455962MA - 55962 - 55962E701 - 55962MA SM