Keyless Bushing Flange Type Not Applicable For Bore Diameter 1 3/4 in Keyless Bushing Type Multi-Screw Locking Assembly Material Carbon Steel Outside Diameter 2 15/16 in Overall Width 0.945 in System of Measurement Inch Hub Contact Pressure 17 490 psi Maximum Transmitted Torque 1 164 ft-lb Outside Diameter Tolerance +0.0015 in