Attributes . 16-1/2" Shaft Dia; 18-1/2" Housing Bore; 0.812" Nominal Width; Mill-Right ES Lip; Split Seal; 0.812" Actual Width; Spring Loaded; 1 Sealing Lips; Stainless Steel Finger Lip Retainer; Reinforced Rubber with Heel Case; 26-L Seal Design Code . Names