This 5 Bolt Hot-Dipped Galvanized Hub kit will include hubs, bearings and seals - everything you need to get your trailer on the road again! Fits most 3,500 pound trailer axles, but to know without a doubt if this hub is the right fit for your setup you would want to check the size your current bearings and make sure that they match up with the 1 3/8 inch x 1 1/16 inch bearings that these hubs come with.