This Hub features a stainless steel body, with Zinc Plated Lug Studs. The Studs are zinc plated simply to provide the strength and thread consistency needed to maintain a solid grip with your lug nuts. With this hub, we included the standard 5200 lb Bearing set, which uses a 1 3/4" (25580) inner wheel bearing, and a 1 1/4" (15123) outer wheel bearing. The Bearing Races are pre-stamped inside the hub body. You will also get two Grease Seals which measures 2 1/8" ID and 2 1/14", both will fit into the hub, but only one will fit snugly onto your spindle, we include both in the kit. Be sure to test fit each grease seal on your spindles grease seal surface to ensure you install the correct one. You can discard the other. It is always recommended to confirm your bearing/seal sizes before purchasing.
The 6 Lug, 6 on 5 1/2 Lug Pattern on this hub is the industry standard for trailer wheels. This hub will work with Kodiak Slip On Style 6 Lug Disc Brake Rotors as well.