Amazon.com: 6 Pack 99502HNR Spindle Bearings ID 5/8" x OD 1-3/8" x Width 7/16" Double Seal and Snap Ring, Replacement for Go Kart, Mini Bikes and Lawn Mowe Etc : Patio, Lawn
DeWalt Ball Spindle #DWB-492823-00 - Tool Parts and Accessories - PartsWarehouse
Norton Pacesetter Vitrified Bond Abrasive Mounted Point, Aluminum Oxide, B121 Shape, 1/8" Spindle Diameter, 1/2" Ball Diameter, Grit 60 (Pack of 5): Abrasive Grinding Mounted Points: Amazon.com: Industrial & Scientific