Double row extra heavy duty sealed ball bearing Replacement double row sealed beating fits Alko and Knott avonride drums Suitable for all heavy duty braked trailers Packs of 1, 2 & 4 available Waterproof so perfect for boat trailers or heavy duty trailers that are used in all weathers Rubber sealed heavy duty wheel hub bearing Alternative aftermarket parts for Alko and Knott trailers Suitable for all trailers with Alko, Knott and Avonride hubs which have a 72mm (outer) bearing inside SUITABLE FOR HUBS - Alko Euro 2051 Drum - Y Avonride hub SPECIFIC DIMENIONS - INTERNAL DIAMETER - 39mm - OUTER DIAMETER - 72mm - TOTAL WIDTH - 37mm ALTERNATIVE AFTERMARKET PARTS FOR - Alko Part number 581169 - Knott part number 45887.12 Please not that this is the heavier duty bearing we also sell less heavy duty ones with the same specific dimensions in our shop We have other Bearings available in our shop.
