Taper Lock Bushing Bushing Type Taper Lock Bore Bushing Series 4535 Bore Diameter 3 3/4 in Length 3.5 in Bolt Circle Diameter 6.13 in Bolt Size Not Applicable System of Measurement Inch Fastener Tightening Torque Capacity 110 000 in-lb Flange Type Flangeless Flange Width Not Applicable For Shaft Type Keyed Includes (3) Set Screws Keyway Height 7/16 in Keyway Width 7/8 in Length Less Flange Not Applicable Material Steel Overall Diameter 6.375 in Taper 8 Degrees