D80BS16X2-3/16H Double 80 Chain Sprocket 16 Teeth 2-3/16" Shaft - 1/2" Keyway

DS80A21H-SB Double Single Sprocket Plain Bore for 2 #80 Roller Chain

Martin Sprocket D80B14H Double Roller

80A14H Type A Plate Sprocket for #80 Roller Chain - 14 Tooth - 15/16" Stock Bore

Martin 60SK26 Steel Roller Chain Sprocket FNIP

Martin 80 BS21 1 15/16 Roller Chain Sprocket

Martin 40BS18 3/4 Steel Roller Chain Sprocket FNIP

80A20H Type A Plate Sprocket for #80 Roller Chain - 20 Tooth - 15/16" Stock Bore