2012X1-3/8-A Taper Lock Bushing, Bushing Type Taper Lock, Bore Diameter 1 3/8 in, Length 1.25 in, Bolt Circle Diameter 2.63 in, Bolt Size Not Applicable, System of Measurement Inch, Bushing Diameter Not Applicable, Fastener Tightening Torque Capacity 7,150 in-lb, Flange Type Flangeless, Flange Width Not Applicable, For Shaft Type Keyed, Includes (2) Set Screws, Keyway Height 5/32 in, Keyway Width 5/16 in, Length Less Flange Not Applicable, Material Steel, Overall Diameter 2.75 in