One replacement bearing for Hustler Mowers, codes 604255 Bearing measures 30mm ID X 62mm OD X 16mm thick. Hustler mowers will use two of these bearings in each blade spindle. Bearing specifications as follows: Inside Dia: 30mm Outside Dia: 62mm Thickness: 16mm If you are not sure if these will fit your mower just send me an email with your model number and I will be happy to confirm them for you! One day handling and free shipping! We have more lawn and garden items available than we have time to list them. If you don't see the parts you need listed please contact us we would love to earn your business. We are listing new items frequently so please check back often. Replaces part numbers: 604255 We stock a wide variety of replacement parts for most Lawn and Garden and Agricultural Equipment please contact us if you have any questions or if you would like more information. Your satisfaction is important to me, if you have any questions, concerns or comments please let me know, I will do everything I can to answer your questions, correct your problem and help you out.!