Martin Wheel BK-9 Bearing Repair Kit for 1-3/4" to 1-1/4" Inner/Outer Axle Get back up in running condition with the complete bearing repair kit; Includes 2 bearing cups, 2 cone roller bearings, grease seal and cap in a poly bag Use: Highway rated trailers Designed for highway service Fits 1-3/4 inch to 1-1/4 inch inner/outer axle