This is a double lipped 1 ½ inch inner diameter grease seal for 2,000 lb – 2,200 lb trailer hubs. The outer diameter of this grease seal measures 1.983 inches. Grease seals help prevent water and dirt from entering the hub and causing bearing failure as the seal will block any grease from escaping the hub. This grease seal is the correct seal for the Dexter 2,200 lb axles that we sell. To determine if this seal is the seal you would need, you would want to measure the seal surface on your axle spindle.