This Trailer Bearing Repair Kit includes everything you need to replace the wheel bearings on one trailer hub. This kit is for 8-bolt hubs on axles with a 1-3/4" to 1-1/4" tapered spindle and includes 2 bearings, 2 bearing races, grease seal (SL-225) 2.25 I.D, cotter pin and dust cap. 10-Pack.