Aftermarket Replacement Bearing Compatible With Morra Hay Tedders fits modes MH420 and MH530 hay tedders. These bearings are used on each horizontal wing shaft and sit behind the pinion gear and are used on both wings Speciation's: 30mm bore, 55mm outside diameter, 19mm thick Fits Models: MH420 and MH530 tedder Replaces: 492018 We stock a wide variety of replacement parts for Agricultural Equipment please contact us if you have any questions or if you would like more information.