Roller Bearing And Race Replaces Ariens 54044, 05404400, 54045, 05404500, 54055, 05405500: Simplicity 154393, 154486: John Deere AM122120, AM124324, AM130202: Snapper 1-2931 HEIGHT: 21/32" ID: 3/4" OD: 1-25/32"