Blade holder hubs for cutterbar mowers STIHL mowers: RM4.0R , RM4.0RT , RM4.0 RTP , RM545.0 , RM545.0T MODEL - TECHNICAL SPECIFICATIONS SHAFT DIAMETER 22.2 mm SHAFT HEIGHT 87.5 mm INSERTION DEPTH 31.4 mm PULLEY DIAMETER - mm CODE: 13286647 ORIGINAL CODE 6118 702 5001 SR