Replacement Bearing for John Deere /Comer Brand divider gearbox used on model 1518 and 2018 batwing mowers. Used on the Comer AW27594 gearbox and shown in position 10 in the attached exploded view of the gearbox. Bearing measures 35mm X 80mm X 21mm and two are used on each output shaft. Specifications: 30mm Bore, 80mm Outside Dimension, 21mm Thick Used on Output Shafts of the AW27594 Divider Gearbox We sell many replacement parts for the most rotary cutters. 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 our store often. Part Numbers: JD9518 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.