HUB MOUNTING BRACKET FOR HUSQVARNA JET64R , JET48 , MASTER50S , MASTER50S , ROYAL19S , ROYAL48S , ROYAL50S , ROYAL53S MODEL - TECHNICAL SPECIFICATIONS SHAFT DIAMETER 22.2 mm SHAFT HEIGHT 32.2 mm INSERTION DEPTH 22 mm CODE: 13271170 ORIGINAL CODE 512 79 39-00 , 515 13 10-64 , 531 00 50-28 , 512 79 39-00 SR