2012X1-5/16-A Taper Lock Bushing, Bushing Type Taper Lock, Bore Diameter 1 5/16 in, Length 1.25 in, Bolt Circle Diameter 2.63 in, Bolt Size Not Applicable, System of Measurement Inch, 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 3/16 in, Keyway Width 3/8 in, Length Less Flange Not Applicable, Material Steel, Overall Diameter 2.75 in, Taper 8 Degrees