Bore Diameter (Inner): 16 mm (approx. 0.63 inches) Outer Diameter: 35 mm (approx. 1.378 inches) Width: 0.500 inches (1/2 inch) Common Industry Interchanges: You can typically swap or cross-reference this part with an 88016 (double sealed), MRC 488016, or general 8016 entries from manufacturers like NTN or National.