Roller Chain Sprocket; 40 Chain; 112 Teeth; 1 Row of Teeth; No Hardened Teeth; 18.121" Outside Diameter; 17.827" Pitch Diameter; B-Hub One Side; Bushed Mount; Q1 Bushing; 1/2" Chain Pitch; ANSI Roller Chain; Keyway; Steel Material

Roller Chain; 40 Chain Size; Riveted; 1/2" Chain Pitch; Standard Chain Series; 1 Strand; Carbon Steel; ANSI; 0.312" Roller Diameter; 5/16" Roller Width; 0.06" Plate Thickness; 0.466" Plate Height; Curved; 5/32" Pin Diameter

Roller Chain Sprocket; 40 Chain; 40 Teeth; 1 Row of Teeth; No Hardened Teeth; 6.653" Outside Diameter; 6.373" Pitch Diameter; A-No Hub; Rough Bore Mount; No Bushing; 1/2" Chain Pitch; ANSI Roller Chain; No Keyway; Steel Material

Roller Chain; 40 Chain Size; Riveted; 1/2" Chain Pitch; Standard Chain Series; 1 Strand; Carbon Steel; ANSI; 0.312" Roller Diameter; 5/16" Roller Width; 0.06" Plate Thickness; 0.466" Plate Height; Curved; 5/32" Pin Diameter

Roller Chain Sprocket; 1-1/8" Bore; 40 Chain; 25 Teeth; 1 Row of Teeth; Hardened Teeth; 4.258" Outside Diameter; 3.989" Pitch Diameter; B-Hub One Side; Finished Bore Mount; No Bushing; 1/2" Chain Pitch; ANSI Roller Chain; Keyway; Steel Material