Lippert 333948 RV and Trailer Axle Bearing Replacement Kit Lippert Components axle bearing kits come complete with inner and outer bearings (cones), inner and outer races (cups), grease seal and cotter pin Proper maintenance of trailer axle bearings are important for safety Worn bearings can lead to axle failure Bearing kit comes complete with every component needed to completely repack one axle hub Kit is universal to most axle brands including Lippert Components, Dexter and Al-Ko