• Bore Diameter (d): 1-7/8 inches (1.875 in / 47.63 mm)
• Outside Diameter (D): 2-13/16 inches (2.8125 in / 71.44 mm)
• Height / Width (T): 3/4 inch (0.750 in / 19.05 mm)
• Design Type: Grooved race, 3-piece separable construction
• Enclosure: Open (unsealed)