3020X1-5/8 Tapered Locking Bushing 

1-5/8" Bore

   Taper-Lock Bushings, Bore Bushing Series 3020, Steel Material, Includes Cap Screws, For Sheaves, Sprockets, Pulleys, Gearbelt Pulleys, Chain Coupling, and Other Power Transmission Applications, Includes Cap Screws Flangr OD 4.3"