Taper Lock Bushing Bushing Type Taper Lock Bore Bushing Series 3020 Bore Diameter 2 1/8 in Length 2 in Bolt Circle Diameter 4 in Bolt Size Not Applicable System of Measurement Inch Flange Type Flangeless Flange Width Not Applicable For Shaft Type Keyed Includes (2) Set Screws Keyway Height 1/4 in Keyway Width 1/2 in Length Less Flange Not Applicable Material Steel Overall Diameter 4.25 in Taper 8 Degrees