Keyless Bushing Flange Type Not Applicable For Bore Diameter 1 15/16 in Keyless Bushing Type Multi-Screw Locking Assembly Material Carbon Steel Outside Diameter 3 9/64 in Overall Width 2.52 in System of Measurement Inch Hub Contact Pressure 14 649 psi Maximum Transmitted Torque 3 057 ft-lb Outside Diameter Tolerance +.0015 in