• Shaft Diameter (Inside Diameter): 2.188 inches / 2-3/16" (55.58 mm)
• Housing Bore (Outside Diameter): 2.875 inches to 2.880 inches (73.03 mm)
• Seal Width (Thickness): 0.438 inches / 7/16" (11.13 mm)
• Seal Lip Material: Nitrile Rubber (NBR / Buna-N)