Attributes . 21-3/4" Shaft Dia; 23-3/4" Housing Bore; 1.1" Nominal Width; Carboxylated Nitrile Lip; Solid Seal; 1.1" Actual Width; Spring Loaded; 2 Sealing Lips; Stainless Steel Garter Lip Retainer; Steel Case; HDSA2 Seal Design Code . Names