This 6 Lug Trailer Brake Drum fits 5200lb axles with a 6 Bolt Lug pattern. Check below for bearing sizes to verify correct fit. This trailer Brake Drum measures 12 inch by 2 inch and fits the 12" Boat Trailer Hydraulic Drum Brake Backing Plates Fits 5200lb Axles
Includes hubs, bearings, dust cap, lug nuts, and seal
Inner bearing number 25580 1 3/4 inch inner diameter
Outer Bearing number 15123 1 1/4 inch inner diameter
Bolt Pattern is 6 on 5 1/2 inch
Rated to 2600 lbs each
Drum Size 2 in x 12 in
Works for electric brakes and hydraulic brakes